Chrysler Pacifica CS 2004 Service Manual

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1.0

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.1

SYSTEM COVERAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.2

SIX-STEP TROUBLESHOOTING PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . .1

2.0

IDENTIFICATION OF SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

3.0

SYSTEM DESCRIPTION AND FUNCTIONAL OPERATION . . . . . . . . . . . . . . . . . . . . . .2

3.1

GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

3.2

FUNCTIONAL OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

3.2.1

3.2.2

3.2.3

3.2.4

3.2.5

3.2.6

3.2.7

3.2.8

3.2.9

3.2.10 PROGRAMMING THE SKREEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

3.2.11

3.3

DIAGNOSTIC TROUBLE CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

3.3.1

3.3.2

3.3.3

3.3.4

3.4

USING THE DRBIII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

3.5

DRBIII ERROR MESSAGES AND BLANK SCREEN . . . . . . . . . . . . . . . . . . . . .12

3.5.1

3.5.2

4.0

DISCLAIMERS, SAFETY, WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

4.1

DISCLAIMERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

4.2

SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

4.2.1

4.2.2

4.2.3

4.2.4

4.3

WARNINGS AND CAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

4.3.1

4.3.2

5.0

REQUIRED TOOLS AND EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

6.0

GLOSSARY OF TERMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

7.0

DIAGNOSTIC INFORMATION AND PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . .17

COMMUNICATION

*NO RESPONSE FROM PCM (PCI BUS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

*NO RESPONSE FROM PCM (PCM SCI ONLY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

*NO RESPONSE FROM SENTRY KEY REMOTE ENTRY MODULE . . . . . . . . . . . . . .22

FUEL CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

ON-BOARD DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

OTHER CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

PCM OPERATING MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

NON-MONITORED CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

SENTRY KEY REMOTE ENTRY SYSTEM (SKREES) OVERVIEW . . .9

SKREEM ON-BOARD DIAGNOSTICS. . . . . . . . . . . . . . . . . . . . . . . . . . .9

SKREES OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

PROGRAMMING THE POWERTRAIN CONTROL MODULE . . . . . . .10

PROGRAMMING THE IGNITION KEYS TO THE SKREEM. . . . . . . . .11

HARD CODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

INTERMITTENT CODE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

STARTS SINCE SET COUNTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

DISTANCE SINCE MI SET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

DRBIII DOES NOT POWER UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

DISPLAY IS NOT VISIBLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

TECHNICIAN SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . .13

VEHICLE PREPARATION FOR TESTING. . . . . . . . . . . . . . . . . . . . . . .13

SERVICING SUB ASSEMBLIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

DRBIII SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

ROAD TEST WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

VEHICLE DAMAGE CAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

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Summary of Contents for Chrysler Pacifica CS 2004

Page 1: Table Of Contents
TABLE OF CONTENTS INTRODUCTION ............1 SYSTEM COVERAGE .
Page 2 TABLE OF CONTENTS - Continued *NO RESPONSE FROM TRANSMISSION CONTROL MODULE ....24 *PCI BUS COMMUNICATION FAILURE ........27 DRIVEABILITY - NGC INTERMITTENT CONDITION.
Page 3 TABLE OF CONTENTS - Continued P0339-CRANKSHAFT POSITION SENSOR INTERMITTENT ....130 P0340-CAMSHAFT POSITION SENSOR CIRCUIT ......134 P0344-CAMSHAFT POSITION SENSOR INTERMITTENT .
Page 4 TABLE OF CONTENTS - Continued P0633-SKIM KEY NOT PROGRAMMED IN PCM......243 P0645-A/C CLUTCH RELAY CIRCUIT ........244 P0660-MANIFOLD TUNE VALVE SOLENOID CIRCUIT.
Page 5 TABLE OF CONTENTS - Continued STARTING *CHECKING FUEL DELIVERY..........309 *CHECKING FUEL PRESSURE LEAK DOWN .
Page 6 TABLE OF CONTENTS - Continued INTEGRATED POWER MODULE C1 - BLACK 15 WAY ..... . .347 INTEGRATED POWER MODULE C2 - DK. GRAY 4 WAY..... .347 INTEGRATED POWER MODULE C3 - GRAY 2 WAY .
Page 7: 1.0 Introduction
GENERAL INFORMATION An * placed before the symptom description indi- NOTE (NGC) cates a customer complaint. The 2004 CS is equipped with the Powertrain When repairs are required, refer to the appropri- Control Module and Transmission Control ate service information for the proper removal and Module combined in a single control module.
Page 8: System Description And Functional Operation
GENERAL INFORMATION even though a malfunction has occurred. This may 3.0 SYSTEM DESCRIPTION AND happen because one of the trouble code criteria have FUNCTIONAL OPERATION not been met. The PCM compares input signal voltages from each input device with specifications (the estab- 3.1 GENERAL DESCRIPTION lished high and low limits of the range) that are programmed into it for that device.
Page 9 GENERAL INFORMATION OBD II/EURO STAGE III OBD MONITOR INFORMATION Comprehensive Major Monitors Major Monitors Components Non Fuel Control Fuel Control Monitor & Non Misfire & Misfire Run constantly Run Once Per Trip Run Constantly Includes All Engine Hardware Monitors Entire Emission Monitors Entire System - Sensors, Switches, System...
Page 10 For additional information, refer to the Chrysler the CARB Readiness Status in the least time pos- Corporation Technical Training Workbook titled On sible.
Page 11: 3.2.3 Other Controls
GENERAL INFORMATION C. EGR Monitor shifted up by a 2.5 volt offset. This 2.5 volt supply is being delivered through the sensor return line. The EGR monitor now runs in a closed throttle decel or at idle on a warm vehicle. However, it is NATURAL VACUUM LEAK DETECTION (NVLD) necessary to maintain the TPS, Map and RPM The Natural Vacuum Leak Detection (NVLD)
Page 12 GENERAL INFORMATION check valve that protects the system from failed is started, the switch closure is recorded as a Pass, nozzle liquid ingestion, in order to detect cap off and the timers that are recording accumulated time conditions. are reset. The normally closed valve in the NVLD is in- This diagnostic test can take at least a week to tended to maintain the seal on the evaporative...
Page 13 GENERAL INFORMATION • Engine temperature at startup within 10 °F of • Turn purge off and determine how long it takes to the ambient temperature decay the tank vacuum and reopen the switch. Determine the leak size from the time it took to •...
Page 14 GENERAL INFORMATION FIGURE 2...
Page 15: Pcm Operating Modes
GENERAL INFORMATION 3.2.4 PCM OPERATING MODES sult in starting and driveability problems. See indi- vidual symptoms and their definitions in Section As input signals to the PCM change, the PCM 6.0 (Glossary of Terms). adjusts its response to output devices. For example, PCM Grounds −...
Page 16: Skrees Operation
GENERAL INFORMATION PCI Bus message, or coded messages to the to the body control module. The LED is actuated SKREEM. If all of the criteria for monitoring a when the SKREEM sends a PCI Bus message to the circuit or function are met and a fault is sensed, a body controller requesting the LED on.
Page 17: Programming The Skreem
GENERAL INFORMATION NOTE: If three attempts are made to enter 4. Enter secured access mode by entering the vehi- cle four-digit PIN. the secure access mode using an incorrect PIN, secured access mode will be locked out NOTE: A maximum of eight keys can be for one hour.
Page 18: Intermittent Code
GENERAL INFORMATION pre-test screens will help with this for MONITOR 3. If the distance count is being held due to (Item 2.) and the fault is cleared, the distance is DTC’s), this is called a TRIP. All OBDII/Euro Stage III OBD DTCs will be set after one or in some cases cleared (set to zero).
Page 19: Display Is Not Visible
GENERAL INFORMATION connector cavity 16). A minimum of 11 volts is important to block the wheels on front-wheel drive required to adequately power the DRBIII . vehicles; the parking brake does not hold the drive If all connections are proper between the wheels.
Page 20: Warnings And Cautions
GENERAL INFORMATION When testing voltage or continuity at any control FUNCTION INPUT LIMIT module, use the terminal side (not the wire end) of Volts 0 - 500 peak volts AC the connector. Do not probe a wire through the 0 - 500 volts DC insulation;...
Page 21 GENERAL INFORMATION cuts out, a steady pulsation or the inability of next generation controller misses the engine to maintain a consistent oxygen sensor programmable communication inter- data link connector (previously face called engine diagnostic connector) powertrain control module detona- a mild to severe ping, especially un- tion, der loaded engine conditions positive crankcase ventilation...
Page 22 NOTES...
Page 23: Diagnostic Information And Procedures
DIAGNOSTIC INFORMATION AND PROCEDURES...
Page 24: Communication
COMMUNICATION Symptom: *NO RESPONSE FROM PCM (PCI BUS) POSSIBLE CAUSES PCM PCI NO RESPONSE POWERTRAIN CONTROL MODULE PCI BUS CIRCUIT OPEN TEST ACTION APPLICABILITY Turn the ignition on. NOTE: As soon as one or more module communicates with the DRB, answer the question.
Page 25: No Response From Pcm (Pcm Sci Only)
COMMUNICATION Symptom: *NO RESPONSE FROM PCM (PCM SCI ONLY) POSSIBLE CAUSES CHECK PCM POWERS AND GROUNDS PCM SCI TRANSMIT CIRCUIT SHORTED TO VOLTAGE PCM SCI RECEIVE CIRCUIT SHORTED TO VOLTAGE PCM SCI CIRCUITS SHORTED TOGETHER PCM SCI TRANSMIT CIRCUIT SHORTED TO GROUND PCM SCI RECEIVE CIRCUIT SHORTED TO GROUND PCM SCI RECEIVE CIRCUIT OPEN PCM SCI TRANSMIT CIRCUIT OPEN...
Page 26 COMMUNICATION *NO RESPONSE FROM PCM (PCM SCI ONLY) — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the DRBIII from the DLC. Disconnect the PCM harness connectors. Measure the resistance between the SCI Transmit (PCM) circuit and the SCI Receive (PCM) circuit at the Data Link harness connector (cavs 7 and 12).
Page 27 COMMUNICATION *NO RESPONSE FROM PCM (PCM SCI ONLY) — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the PCM harness connector. Disconnect the DRBIII from the DLC. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 28: No Response From Sentry Key Remote Entry Module
COMMUNICATION Symptom: *NO RESPONSE FROM SENTRY KEY REMOTE ENTRY MODULE POSSIBLE CAUSES ATTEMPT TO COMMUNICATE WITH THE BCM GROUND CIRCUIT OPEN IGNITION SWITCH OUTPUT CIRCUIT OPEN FUSED B(+) CIRCUIT OPEN OPEN PCI BUS CIRCUIT SENTRY KEY REMOTE ENTRY MODULE TEST ACTION APPLICABILITY Turn the ignition on.
Page 29 COMMUNICATION *NO RESPONSE FROM SENTRY KEY REMOTE ENTRY MODULE — Continued TEST ACTION APPLICABILITY Note: Ensure there is PCI Bus communication with other modules on the vehicle before proceeding. If not, refer to the symptom list from the menu and repair as necessary. Disconnect the SKREEM harness connector.
Page 30: No Response From Transmission Control Module
COMMUNICATION Symptom: *NO RESPONSE FROM TRANSMISSION CONTROL MODULE POSSIBLE CAUSES NO RESPONSE FROM TRANSMISSION CONTROL MODULE IGNITION UNLOCK/RUN/START CIRCUIT OPEN FUSED B(+) CIRCUIT OPEN GROUND CIRCUIT(S) OPEN PCI BUS CIRCUIT OPEN POWERTRAIN CONTROL MODULE TEST ACTION APPLICABILITY Turn the ignition on. Note: As soon as one or more module communicates with the DRB, answer the question.
Page 31 COMMUNICATION *NO RESPONSE FROM TRANSMISSION CONTROL MODULE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the PCM harness connectors. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Page 32 COMMUNICATION *NO RESPONSE FROM TRANSMISSION CONTROL MODULE — Continued TEST ACTION APPLICABILITY Note: Ensure there is PCI Bus communication with other modules on the vehicle before proceeding. If not, refer to the symptom list from the menu and repair as necessary. Disconnect the PCM harness connectors.
Page 33: Pci Bus Communication Failure
COMMUNICATION Symptom: *PCI BUS COMMUNICATION FAILURE POSSIBLE CAUSES WIRING HARNESS INTERMITTENT OPEN PCI BUS CIRCUIT AT THE DATA LINK CONNECTOR (DLC) PCI BUS CIRCUIT SHORTED TO VOLTAGE MODULE SHORT TO VOLTAGE PCI BUS CIRCUIT SHORTED TO GROUND MODULE SHORT TO GROUND TEST ACTION APPLICABILITY...
Page 34 COMMUNICATION *PCI BUS COMMUNICATION FAILURE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the PCM harness connectors. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Page 35 COMMUNICATION *PCI BUS COMMUNICATION FAILURE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the negative battery cable. Using a ohmmeter, connect one end to the PCI Bus circuit at the DLC, and the other end to ground. While monitoring the ohmmeter, disconnect each module the vehicle is equipped with one at a time.
Page 36: Intermittent Condition
DRIVEABILITY - NGC Symptom: INTERMITTENT CONDITION POSSIBLE CAUSES INTERMITTENT CONDITION TEST ACTION APPLICABILITY NOTE: The conditions that set the DTC are not present at this time. The following list may help in identifying the intermittent condition. WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN.
Page 37: P0016-Crankshaft/Camshaft Timing Misalignment
DRIVEABILITY - NGC Symptom: P0016-CRANKSHAFT/CAMSHAFT TIMING MISALIGNMENT When Monitored and Set Condition: P0016-CRANKSHAFT/CAMSHAFT TIMING MISALIGNMENT When Monitored: Engine cranking and Engine running Set Condition: Powertrain Control Module detects an error when the camshaft position is out of phase with the crankshaft position. One trip fault. POSSIBLE CAUSES INTERMITTENT CONDITION CHECKING INTERMITTENT CMP SIGNAL WITH LAB...
Page 38 DRIVEABILITY - NGC P0016-CRANKSHAFT/CAMSHAFT TIMING MISALIGNMENT — Continued TEST ACTION APPLICABILITY Turn the ignition off. With the DRBIII lab scope probe and the Miller special tool #6801, backprobe the (K44) CMP Signal circuit at the CMP harness connector. WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN.
Page 39 DRIVEABILITY - NGC P0016-CRANKSHAFT/CAMSHAFT TIMING MISALIGNMENT — Continued TEST ACTION APPLICABILITY Turn the ignition off. With the DRBIII lab scope probe and the Miller special tool #6801, backprobe the (K24) CKP Signal circuit at the CKP harness connector. WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN.
Page 40 DRIVEABILITY - NGC P0016-CRANKSHAFT/CAMSHAFT TIMING MISALIGNMENT — Continued TEST ACTION APPLICABILITY NOTE: The conditions that set this DTC are not present at this time. The following test may help in identifying the intermittent condition. WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN.
Page 41: P0031-O2 Sensor 1/1 Heater Circuit Low
DRIVEABILITY - NGC Symptom List: P0031-O2 SENSOR 1/1 HEATER CIRCUIT LOW P0037-O2 SENSOR 1/2 HEATER CIRCUIT LOW Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0031-O2 SENSOR 1/1 HEATER CIRCUIT LOW.
Page 42 DRIVEABILITY - NGC P0031-O2 SENSOR 1/1 HEATER CIRCUIT LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. NOTE: Allow the O2 Sensor to cool down before continuing the test. The O2 Sensor voltage should stabilize at 5.0 volts. Raising the hood may help in reducing under hood temps quicker.
Page 43: P0032-O2 Sensor 1/1 Heater Circuit High
DRIVEABILITY - NGC Symptom List: P0032-O2 SENSOR 1/1 HEATER CIRCUIT HIGH P0038-O2 SENSOR 1/2 HEATER CIRCUIT HIGH Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0032-O2 SENSOR 1/1 HEATER CIRCUIT HIGH.
Page 44 DRIVEABILITY - NGC P0032-O2 SENSOR 1/1 HEATER CIRCUIT HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. NOTE: Allow the O2 Sensor to cool down before continuing the test. The O2 Sensor voltage should stabilize at 5.0 volts. Raising the hood may help in reducing under hood temps quicker.
Page 45 DRIVEABILITY - NGC P0032-O2 SENSOR 1/1 HEATER CIRCUIT HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the O2 Sensor harness connector. Disconnect the PCM harness connector. Ignition on, engine not running. Measure the voltage on the O2 Heater Control circuit at the O2 Sensor harness connector.
Page 46: P0068-Manifold Pressure/Throttle Position Correlation
DRIVEABILITY - NGC Symptom: P0068-MANIFOLD PRESSURE/THROTTLE POSITION CORRELA- TION When Monitored and Set Condition: P0068-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION When Monitored: With the engine running and no MAP Sensor or TP Sensor DTC’s set. Set Condition: The PCM determines a valid range in which the TP Sensor should be, at a given RPM/Load.
Page 47 DRIVEABILITY - NGC P0068-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION — Continued TEST ACTION APPLICABILITY NOTE: Diagnose any TP Sensor or MAP Sensor component DTCs before continuing. NOTE: The throttle plate and linkage must be free from binding and carbon build up, ensure the throttle plate is at the idle position. Ignition on, engine not running.
Page 48 DRIVEABILITY - NGC P0068-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the TP Sensor harness connector. Disconnect the PCM harness connector. Measure the resistance between ground and the (K6) 5 Volt Supply circuit at the TP Sensor harness connector.
Page 49 DRIVEABILITY - NGC P0068-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the TP Sensor harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 50 DRIVEABILITY - NGC P0068-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the MAP Sensor harness connector. With the DRBIII , monitor the MAP Sensor voltage. Ignition on, engine not running. Connect a jumper wire between the (K1) MAP Sensor Signal circuit and the (K4) Sensor ground circuit .
Page 51 DRIVEABILITY - NGC P0068-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION — Continued TEST ACTION APPLICABILITY NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary. If there are no possible causes remaining, view repair. Repair Replace and program the Powertrain Control Module in accor- dance with the Service Information.
Page 52: P0071-Ambient Temp Sensor Performance
DRIVEABILITY - NGC Symptom: P0071-AMBIENT TEMP SENSOR PERFORMANCE When Monitored and Set Condition: P0071-AMBIENT TEMP SENSOR PERFORMANCE When Monitored: Engine off time is greater than 480 minutes. Ambient temperature is greater than -23°C(-10°F). Set Condition: After a calibrated amount of cool down time, the PCM compares the ECT Sensor, IAT Sensor and the Ambient Air Temperature Sensor values.
Page 53 DRIVEABILITY - NGC P0071-AMBIENT TEMP SENSOR PERFORMANCE — Continued TEST ACTION APPLICABILITY NOTE: Visually inspect both the component and the PCM connectors. Look for damage, partially broken wires and backed out or corroded terminals Turn the ignition off. Disconnect the Ambient Air Temp Sensor harness connector. Ignition on, engine not running.
Page 54 DRIVEABILITY - NGC P0071-AMBIENT TEMP SENSOR PERFORMANCE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Ambient Air Temperature Sensor harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 55: P0072-Ambient Temp Sensor Low
DRIVEABILITY - NGC Symptom: P0072-AMBIENT TEMP SENSOR LOW When Monitored and Set Condition: P0072-AMBIENT TEMP SENSOR LOW When Monitored: The ignition key on. Set Condition: Ambient Temperture Sensor is less than .0392 of a volt at the PCM. One Trip Fault. POSSIBLE CAUSES AMBIENT AIR TEMPERATURE SENSOR VOLTAGE BELOW 0.3 VOLTS AMBIENT AIR TEMPERATURE SENSOR INTERNAL FAILURE...
Page 56 DRIVEABILITY - NGC P0072-AMBIENT TEMP SENSOR LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Ambient Air Temperature Sensor harness connector. Disconnect the PCM harness connector. Measure the resistance between the (K25) AAT Signal circuit and the (K4) Sensor ground circuit in the Ambient Air Temperature Sensor harness connector.
Page 57: P0073-Ambient Temp Sensor High
DRIVEABILITY - NGC Symptom: P0073-AMBIENT TEMP SENSOR HIGH When Monitored and Set Condition: P0073-AMBIENT TEMP SENSOR HIGH When Monitored: The ignition key on. Set Condition: The Ambient Temperature Sensor voltage is greater than 4.94 volts. One Trip Fault. POSSIBLE CAUSES AMBIENT AIR TEMPERATURE SENSOR VOLTAGE ABOVE 4.8 VOLTS (K25) AAT SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE AMBIENT AIR TEMPERATURE SENSOR INTERNAL FAILURE...
Page 58 DRIVEABILITY - NGC P0073-AMBIENT TEMP SENSOR HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Ambient Air Temperature Sensor harness connector. Connect a jumper wire between the (K145) AAT Signal circuit and the (K167) Sensor ground circuit in the Ambient Air Temperature Sensor harness connector. Ignition on, engine not running.
Page 59: P0107-Map Sensor Low
DRIVEABILITY - NGC Symptom: P0107-MAP SENSOR LOW When Monitored and Set Condition: P0107-MAP SENSOR LOW When Monitored: Engine speed between 600 to 3500 RPM. TPS voltage less than 1.2 volts. Battery voltage greater than 10 volts. Set Condition: The MAP sensor signal voltage is less than 0.0782 of a volt for 1.7 seconds. One trip Fault.
Page 60 DRIVEABILITY - NGC P0107-MAP SENSOR LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the MAP Sensor harness connector. Ignition on, engine not running. With the DRBIII , monitor the MAP Sensor voltage. Is the voltage above 1.2 volts? Yes →...
Page 61 DRIVEABILITY - NGC P0107-MAP SENSOR LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the MAP Sensor harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 62: P0108-Map Sensor High
DRIVEABILITY - NGC Symptom: P0108-MAP SENSOR HIGH When Monitored and Set Condition: P0108-MAP SENSOR HIGH When Monitored: Engine speed between 600 to 3500 RPM. TP sensor voltage less than 1.2 volts for greater than 1.7 seconds. Battery voltage greater than 10 volts Set Condition: The MAP sensor signal voltage is greater than 4.92 volts.
Page 63 DRIVEABILITY - NGC P0108-MAP SENSOR HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the MAP Sensor harness connector. Ignition on, engine not running. Measure the voltage of the (K1) MAP Signal circuit in the MAP Sensor harness connector.
Page 64 DRIVEABILITY - NGC P0108-MAP SENSOR HIGH — Continued TEST ACTION APPLICABILITY NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary. If there are no possible causes remaining, view repair. Repair Replace and program the Powertrain Control Module in accor- dance with the Service Information.
Page 65: P0111-Intake Air Temperature Sensor Performance
DRIVEABILITY - NGC Symptom: P0111-INTAKE AIR TEMPERATURE SENSOR PERFORMANCE When Monitored and Set Condition: P0111-INTAKE AIR TEMPERATURE SENSOR PERFORMANCE When Monitored: Engine off time is greater than 480 minutes. Ambient temperature is greater than -23°C (-10°F). Set Condition: After a calibrated amount of cool down time, the PCM compares the ECT Sensor, IAT Sensor and the Ambient Air Temperature Sensor values.
Page 66 DRIVEABILITY - NGC P0111-INTAKE AIR TEMPERATURE SENSOR PERFORMANCE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the IAT Sensor harness connector. Ignition on, engine not running. With the DRBIII , read the IAT Sensor voltage. Is the voltage above 4.9 volts? Yes →...
Page 67 DRIVEABILITY - NGC P0111-INTAKE AIR TEMPERATURE SENSOR PERFORMANCE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the IAT Sensor harness connector. Disconnect the PCM harness connector. Measure the resistance between ground and the (K21) IAT Signal circuit in the IAT Sensor harness connector.
Page 68: P0112-Intake Air Temperature Sensor Low
DRIVEABILITY - NGC Symptom: P0112-INTAKE AIR TEMPERATURE SENSOR LOW When Monitored and Set Condition: P0112-INTAKE AIR TEMPERATURE SENSOR LOW When Monitored: With the ignition on. Battery voltage greater than 10 volts. Set Condition: The Intake Air Temperature (IAT) sensor voltage is less than 0.0784 of a volt.
Page 69 DRIVEABILITY - NGC P0112-INTAKE AIR TEMPERATURE SENSOR LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the IAT Sensor harness connector. Disconnect the PCM harness connector. Measure the resistance between the (K21) IAT Sensor Signal circuit and the (K4) Sensor ground circuit in the IAT Sensor harness connector.
Page 70: P0113-Intake Air Temperature Sensor High
DRIVEABILITY - NGC Symptom: P0113-INTAKE AIR TEMPERATURE SENSOR HIGH When Monitored and Set Condition: P0113-INTAKE AIR TEMPERATURE SENSOR HIGH When Monitored: With the ignition on. Battery voltage greater than 10 volts. Set Condition: The Intake Air Temperature (IAT) sensor voltage at the PCM is greater than 4.98 volts.
Page 71 DRIVEABILITY - NGC P0113-INTAKE AIR TEMPERATURE SENSOR HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the IAT harness connector. Connect a jumper wire between the (K21) IAT Signal circuit and the (K4) Sensor ground circuit in the IAT harness connector. Ignition on, engine not running.
Page 72: P0116-Engine Coolant Temperature Performance
DRIVEABILITY - NGC Symptom: P0116-ENGINE COOLANT TEMPERATURE PERFORMANCE When Monitored and Set Condition: P0116-ENGINE COOLANT TEMPERATURE PERFORMANCE When Monitored: Engine off time is greater than 480 minutes. Ambient temperature is greater than 4°C (39°F) 02 MY or -23°C (-10°F) 03 MY. Set Condition: After a calibrated amount of cool down time, the PCM compares the ECT Sensor, IAT Sensor and the Ambient Air Temperature Sensor values.
Page 73 DRIVEABILITY - NGC P0116-ENGINE COOLANT TEMPERATURE PERFORMANCE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the ECT Sensor harness connector. NOTE: Visually inspect both the component and the PCM connectors. Look for damaged, partially broken wires, and backed out or corroded terminals. Ignition on, engine not running.
Page 74 DRIVEABILITY - NGC P0116-ENGINE COOLANT TEMPERATURE PERFORMANCE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the ECT harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 75: P0117-Engine Coolant Temperature Sensor Low
DRIVEABILITY - NGC Symptom: P0117-ENGINE COOLANT TEMPERATURE SENSOR LOW When Monitored and Set Condition: P0117-ENGINE COOLANT TEMPERATURE SENSOR LOW When Monitored: With the ignition on. Battery voltage greater than 10 volts. Set Condition: The Engine Coolant Temperature (ECT) sensor circuit voltage at the PCM is less than 0.0782 of a volt.
Page 76 DRIVEABILITY - NGC P0117-ENGINE COOLANT TEMPERATURE SENSOR LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the ECT Sensor harness connector. Disconnect the PCM harness connector. Measure the resistance between the (K2) ECT Sensor Signal circuit and the (K4) Sensor ground circuit in the ECT Sensor harness connector.
Page 77: P0118-Engine Coolant Temperature Sensor High
DRIVEABILITY - NGC Symptom: P0118-ENGINE COOLANT TEMPERATURE SENSOR HIGH When Monitored and Set Condition: P0118-ENGINE COOLANT TEMPERATURE SENSOR HIGH When Monitored: With the ignition on. Battery voltage greater than 10 volts. Set Condition: The Engine Coolant Temperature (ECT) sensor voltage at the PCM is greater than 4.9 volts.
Page 78 DRIVEABILITY - NGC P0118-ENGINE COOLANT TEMPERATURE SENSOR HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the ECT harness connector. Connect a jumper wire between the (K2) ECT Signal circuit and the (K4) Sensor ground circuit in the ECT harness connector. Ignition on, engine not running.
Page 79: P0122-Throttle Position Sensor #1 Low
DRIVEABILITY - NGC Symptom: P0122-THROTTLE POSITION SENSOR #1 LOW When Monitored and Set Condition: P0122-THROTTLE POSITION SENSOR #1 LOW When Monitored: With the ignition on. Battery voltage greater than 10 volts. Set Condition: Throttle Position Sensor voltage at the PCM is less than 0.0978 of a volt. One Trip Fault.
Page 80 DRIVEABILITY - NGC P0122-THROTTLE POSITION SENSOR #1 LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the TP Sensor harness connector. With the DRBIII , monitor the TP Sensor voltage. Ignition on, engine not running. Is the voltage above 4.5 volts? Yes →...
Page 81 DRIVEABILITY - NGC P0122-THROTTLE POSITION SENSOR #1 LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the TP Sensor harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 82: P0123-Throttle Position Sensor #1 High
DRIVEABILITY - NGC Symptom: P0123-THROTTLE POSITION SENSOR #1 HIGH When Monitored and Set Condition: P0123-THROTTLE POSITION SENSOR #1 HIGH When Monitored: With the ignition on. Battery voltage greater than 10 volts. Set Condition: Throttle Position Sensor voltage at the PCM is greater than 4.47 volts. One Trip Fault.
Page 83 DRIVEABILITY - NGC P0123-THROTTLE POSITION SENSOR #1 HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the TP Sensor harness connector. Ignition on, engine not running. Measure the voltage of the (K22) TP Signal circuit in the TP Sensor harness connector.
Page 84 DRIVEABILITY - NGC P0123-THROTTLE POSITION SENSOR #1 HIGH — Continued TEST ACTION APPLICABILITY NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary. If there are no possible causes remaining, view repair. Repair Replace and program the Powertrain Control Module in accor- dance with the Service Information.
Page 85: P0125-Insufficient Coolant Temp For Closed-Loop Fuel Control
DRIVEABILITY - NGC Symptom: P0125-INSUFFICIENT COOLANT TEMP FOR CLOSED-LOOP FUEL CONTROL When Monitored and Set Condition: P0125-INSUFFICIENT COOLANT TEMP FOR CLOSED-LOOP FUEL CONTROL When Monitored: With battery voltage greater than 10.4 volts, after engine is started. Set Condition: The engine temperature does not enable closed loop. Failure time depends on start-up coolant temperature and ambient temperature.
Page 86 DRIVEABILITY - NGC P0125-INSUFFICIENT COOLANT TEMP FOR CLOSED-LOOP FUEL CON - TROL — Continued TEST ACTION APPLICABILITY NOTE: This test works best if performed on a cold engine (cold soak). Ignition on, engine not running. With the DRBIII , read the ECT Deg value. If the engine was allowed to sit overnight (cold soak), the temperature value should be a sensible value that is somewhere close to the ambient temperature.
Page 87: P0128-Thermostat Rationality
DRIVEABILITY - NGC Symptom: P0128-THERMOSTAT RATIONALITY When Monitored and Set Condition: P0128-THERMOSTAT RATIONALITY When Monitored: The engine running. During cold start. Set Condition: The PCM predicts a coolant temperature value that it will compare to the actual coolant temperature. If the two coolant temperature values are not within 10°C (50°F) of each other an error is detected.
Page 88 DRIVEABILITY - NGC P0128-THERMOSTAT RATIONALITY — Continued TEST ACTION APPLICABILITY NOTE: If a Engine Coolant Temperature (ECT) DTC is set along with this code, diagnose the ECT DTC first. NOTE: Inspect the ECT terminals and related PCM terminals. Ensure the terminals are free from corrosion and damage.
Page 89 DRIVEABILITY - NGC P0128-THERMOSTAT RATIONALITY — Continued TEST ACTION APPLICABILITY WARNING: MAKE SURE THE ENGINE COOLING SYSTEM IS COOL BE- FORE REMOVING THE PRESSURE CAP OR ANY HOSE. SEVERE PER- SONAL INJURY MAY RESULT FROM ESCAPING HOT COOLANT. THE COOLING SYSTEM IS PRESSURIZED WHEN HOT. Turn the ignition on.
Page 90 DRIVEABILITY - NGC P0128-THERMOSTAT RATIONALITY — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the applicable Temperature Sensor harness connector. Ignition on, engine not running. With the DRBIII , read the Temperature Sensor voltage. Is the voltage above 4.6 volts? Yes →...
Page 91 DRIVEABILITY - NGC P0128-THERMOSTAT RATIONALITY — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the applicable Temperature Sensor harness connector. Disconnect the PCM harness connector. Measure the resistance between ground and the Signal circuit in the Temperature harness connector. Is the resistance below 100 ohms? Yes →...
Page 92: P0129-Barometric Pressure Out-Of-Range Low
DRIVEABILITY - NGC Symptom: P0129-BAROMETRIC PRESSURE OUT-OF-RANGE LOW When Monitored and Set Condition: P0129-BAROMETRIC PRESSURE OUT-OF-RANGE LOW When Monitored: With the ignition key on. No Cam or Crank signal within 75 ms. Engine speed at less than 250 RPM. Set Condition: The PCM senses the voltage from the MAP sensor to be less than 2.196 volts but above 0.0392 of a volt for 300 milliseconds.One Trip Fault.
Page 93 DRIVEABILITY - NGC P0129-BAROMETRIC PRESSURE OUT-OF-RANGE LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the MAP Sensor harness connector. Ignition on, engine not running. With the DRBIII , monitor the MAP Sensor voltage. Is the voltage above 2.2 volts? Yes →...
Page 94 DRIVEABILITY - NGC P0129-BAROMETRIC PRESSURE OUT-OF-RANGE LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the MAP Sensor harness connector. Disconnect the PCM harness connector. Measure the resistance between ground and the (K6) 5 Volt Supply circuit at the MAP Sensor harness connector.
Page 95: P0131-O2 Sensor 1/1 Voltage Low
DRIVEABILITY - NGC Symptom List: P0131-O2 SENSOR 1/1 VOLTAGE LOW P0137-O2 SENSOR 1/2 VOLTAGE LOW Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0131-O2 SENSOR 1/1 VOLTAGE LOW. When Monitored and Set Condition: P0131-O2 SENSOR 1/1 VOLTAGE LOW When Monitored: Engine Running.
Page 96 DRIVEABILITY - NGC P0131-O2 SENSOR 1/1 VOLTAGE LOW — Continued TEST ACTION APPLICABILITY NOTE: If one of the O2 Sensors Signal or Return circuits are shorted to ground, the DRBIII will display all O2 Sensor voltage readings low. The O2 Sensor that is shorted to ground will display a voltage reading near or at 0 volts.
Page 97 DRIVEABILITY - NGC P0131-O2 SENSOR 1/1 VOLTAGE LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the O2 Sensor harness connector. Disconnect the PCM harness connector. Measure the resistance between ground and the O2 Signal circuit in the O2 Sensor harness connector.
Page 98: P0132-O2 Sensor 1/1 Voltage High
DRIVEABILITY - NGC Symptom List: P0132-O2 SENSOR 1/1 VOLTAGE HIGH P0138-O2 SENSOR 1/2 VOLTAGE HIGH Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0132-O2 SENSOR 1/1 VOLTAGE HIGH. When Monitored and Set Condition: P0132-O2 SENSOR 1/1 VOLTAGE HIGH When Monitored: The engine running for 119 seconds.
Page 99 DRIVEABILITY - NGC P0132-O2 SENSOR 1/1 VOLTAGE HIGH — Continued TEST ACTION APPLICABILITY NOTE: If one of the O2 Sensors Signal or Return circuits are shorted to voltage, the DRBIII will display all O2 Sensor voltage readings high. NOTE: It is important to perform the diagnostics on the O2 Sensor that set the DTC.
Page 100 DRIVEABILITY - NGC P0132-O2 SENSOR 1/1 VOLTAGE HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the O2 Sensor harness connector Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 101: P0133-O2 Sensor 1/1 Slow Response
DRIVEABILITY - NGC Symptom List: P0133-O2 SENSOR 1/1 SLOW RESPONSE P0139-O2 SENSOR 1/2 SLOW RESPONSE Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0133-O2 SENSOR 1/1 SLOW RESPONSE. When Monitored and Set Condition: P0133-O2 SENSOR 1/1 SLOW RESPONSE When Monitored: Start and drive vehicle greater than 20 MPH and less than 55 MPH.
Page 102 DRIVEABILITY - NGC P0133-O2 SENSOR 1/1 SLOW RESPONSE — Continued TEST ACTION APPLICABILITY NOTE: If one of the O2 Sensors Signal or Return circuits are shorted to ground or voltage, all the other O2 Sensor voltage readings will be affected. NOTE: It is important to perform the diagnostics on the O2 Sensor that set the DTC.
Page 103: P0135-O2 Sensor 1/1 Heater Performance
DRIVEABILITY - NGC Symptom List: P0135-O2 SENSOR 1/1 HEATER PERFORMANCE P0141-O2 SENSOR 1/2 HEATER PERFORMANCE Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0135-O2 SENSOR 1/1 HEATER PERFORMANCE. When Monitored and Set Condition: P0135-O2 SENSOR 1/1 HEATER PERFORMANCE When Monitored: Engine Running and Heater duty cycle greater than 0% Set Condition: O2 Heater Temperature does not reach 575°C (959°F) within 90 second...
Page 104 DRIVEABILITY - NGC P0135-O2 SENSOR 1/1 HEATER PERFORMANCE — Continued TEST ACTION APPLICABILITY Turn the ignition off. NOTE: Allow the O2 Sensor to cool down before continuing the test. The O2 voltage should stabilize at 5.0 volts. Raising the hood may help in reducing under hood temps.
Page 105 DRIVEABILITY - NGC P0135-O2 SENSOR 1/1 HEATER PERFORMANCE — Continued TEST ACTION APPLICABILITY NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, terminal push out. Repair as necessary. If there are no possible causes remaining, view repair. Repair Replace and program the Powertrain Control Module in accor- dance with the Service Information.
Page 106: P0171-Fuel System 1/1 Lean
DRIVEABILITY - NGC Symptom: P0171-FUEL SYSTEM 1/1 LEAN When Monitored and Set Condition: P0171-FUEL SYSTEM 1/1 LEAN When Monitored: With the engine running in closed loop mode, the ambient/battery temperature above (-7°C)20°F, altitude below 8500 ft and fuel level greater than 15%. Set Condition: If the PCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, a freeze frame is stored, the MIL illuminates and a trouble code is stored.
Page 107 DRIVEABILITY - NGC P0171-FUEL SYSTEM 1/1 LEAN — Continued TEST ACTION APPLICABILITY Warning: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released. Install a fuel pressure gauge.
Page 108 DRIVEABILITY - NGC P0171-FUEL SYSTEM 1/1 LEAN — Continued TEST ACTION APPLICABILITY Turn the ignition off. Connect a Vacuum Gauge to a Manifold Vacuum source. Start the engine. Allow the engine to idle. Note: If engine will not idle, maintain a constant RPM above idle. With the DRBIII in Sensors, read the MAP Sensor vacuum value.
Page 109 DRIVEABILITY - NGC P0171-FUEL SYSTEM 1/1 LEAN — Continued TEST ACTION APPLICABILITY Ignition on, engine not running. Disconnect the O2 Sensor harness connector. With the DRBIII , monitor the O2 Sensor voltage. The O2 Sensor voltage should read 5.0 volts on the DRBIII with the connector disconnected.
Page 110 DRIVEABILITY - NGC P0171-FUEL SYSTEM 1/1 LEAN — Continued TEST ACTION APPLICABILITY Turn the ignition off. Warning: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released.
Page 111: P0172-Fuel System 1/1 Rich
DRIVEABILITY - NGC Symptom: P0172-FUEL SYSTEM 1/1 RICH When Monitored and Set Condition: P0172-FUEL SYSTEM 1/1 RICH When Monitored: With the engine running in closed loop mode, the ambient/battery temperature above (-7°C)20°F and altitude below 8500 ft. Set Condition: If the PCM multiplies short term compensation by long term adaptive as well as a purge fuel multiplier and the result is below a certain value for 30 seconds over two trips, a freeze frame is stored, the MIL illuminates and a trouble code is stored.
Page 112 DRIVEABILITY - NGC P0172-FUEL SYSTEM 1/1 RICH — Continued TEST ACTION APPLICABILITY Warning: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released. Install a fuel pressure gauge.
Page 113 DRIVEABILITY - NGC P0172-FUEL SYSTEM 1/1 RICH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Connect a Vacuum Gauge to a Manifold Vacuum source. Start the engine. Allow the engine to idle. Note: If engine will not idle, maintain a constant RPM above idle. With the DRBIII in Sensors, read the MAP Sensor vacuum value.
Page 114 DRIVEABILITY - NGC P0172-FUEL SYSTEM 1/1 RICH — Continued TEST ACTION APPLICABILITY Ignition on, engine not running. Disconnect the O2 Sensor harness connector. With the DRBIII , monitor the O2 Sensor voltage. The O2 Sensor voltage should read 5.0 volts on the DRBIII with the connector disconnected.
Page 115: P0201-Fuel Injector #1
DRIVEABILITY - NGC Symptom List: P0201-FUEL INJECTOR #1 P0202-FUEL INJECTOR #2 P0203-FUEL INJECTOR #3 P0204-FUEL INJECTOR #4 P0205-FUEL INJECTOR #5 P0206-FUEL INJECTOR #6 Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0201-FUEL INJECTOR #1. When Monitored and Set Condition: P0201-FUEL INJECTOR #1 When Monitored: With battery voltage greater than 10 volts.
Page 116 DRIVEABILITY - NGC P0201-FUEL INJECTOR #1 — Continued POSSIBLE CAUSES GOOD TRIP EQUAL TO ZERO (F42) ASD RELAY OUTPUT CIRCUIT FUEL INJECTOR INJECTOR CONTROL CIRCUIT OPEN INJECTOR CONTROL CIRCUIT SHORTED TO GROUND TEST ACTION APPLICABILITY Ignition on, engine not running. With the DRBIII , read DTCs and record the related Freeze Frame data.
Page 117 DRIVEABILITY - NGC P0201-FUEL INJECTOR #1 — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Fuel Injector harness connector. Disconnect the PCM harness connectors. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 118: P0300-Multiple Cylinder Misfire
DRIVEABILITY - NGC Symptom List: P0300-MULTIPLE CYLINDER MISFIRE P0301-CYLINDER #1 MISFIRE P0302-CYLINDER #2 MISFIRE P0303-CYLINDER #3 MISFIRE P0304-CYLINDER #4 MISFIRE P0305-CYLINDER #5 MISFIRE P0306-CYLINDER #6 MISFIRE Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0300-MULTIPLE CYLINDER MISFIRE.
Page 119 DRIVEABILITY - NGC P0300-MULTIPLE CYLINDER MISFIRE — Continued P0305-CYLINDER #5 MISFIRE When Monitored: Any time the engine is running, and the Target Learning Coefficient has been successfully updated. Set Condition: When more than a 1.0% misfire rate is measured during two trips. P0306-CYLINDER #6 MISFIRE When Monitored: Any time the engine is running, and the Target Learning Coefficient has been successfully updated.
Page 120 DRIVEABILITY - NGC P0300-MULTIPLE CYLINDER MISFIRE — Continued TEST ACTION APPLICABILITY Read and record the FREEZE FRAME DATA. Select OBD II MONITORS. Read and record the MIS-FIRE SIMILAR CONDITIONS WINDOW DATA. With these screens, attempt to duplicate the condition(s) that has set this DTC. When the vehicle is operating in the SIMILAR CONDITIONS WINDOW, refer to the WHICH CYLINDER IS MISFIRING screen.
Page 121 DRIVEABILITY - NGC P0300-MULTIPLE CYLINDER MISFIRE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Remove the Spark Plug. Inspect the Spark Plug for the following conditions. - Cracks - Carbon Tracking - Foreign Material - Gap size out of specifications - Loose or broke electrode NOTE: Lightly tap the bottom of the spark plug on a solid surface.
Page 122 DRIVEABILITY - NGC P0300-MULTIPLE CYLINDER MISFIRE — Continued TEST ACTION APPLICABILITY Warning: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released. CAUTION: After each actuation of the Fuel Injector, start the engine to clear the cylinder of fuel.
Page 123 DRIVEABILITY - NGC P0300-MULTIPLE CYLINDER MISFIRE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Fuel Injector harness connector. Disconnect the PCM harness connectors. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 124 DRIVEABILITY - NGC P0300-MULTIPLE CYLINDER MISFIRE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Ignition Coil harness connector. Ignition on, engine not running. With the DRBIII , actuate the ASD Relay. Using a 12-volt test light connected to ground, probe the ASD Relay Output circuit at the Ignition Coil harness connector.
Page 125 DRIVEABILITY - NGC P0300-MULTIPLE CYLINDER MISFIRE — Continued TEST ACTION APPLICABILITY NOTE: The conditions that set the DTC are not present at this time. WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE PULLEYS, BELTS OR FAN.
Page 126: P0315-No Crank Sensor Learned
DRIVEABILITY - NGC Symptom: P0315-NO CRANK SENSOR LEARNED When Monitored and Set Condition: P0315-NO CRANK SENSOR LEARNED When Monitored: Under closed throttle decel and A/C off. ECT above 75°C (167°F). Engine start time is greater than 50 seconds. Set Condition: One of the CKP sensor target windows has more than 2.86% variance from the reference.
Page 127 DRIVEABILITY - NGC P0315-NO CRANK SENSOR LEARNED — Continued TEST ACTION APPLICABILITY Turn the ignition off. Remove the Crankshaft Position Sensor. Inspect the Tone Wheel/Flex Plate slots for damage, foreign material, or excessive movement. Were any problems found? Yes → Repair or replace the Tone Wheel/Flex Plate as necessary. Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Page 128: P0325-Knock Sensor #1 Circuit
DRIVEABILITY - NGC Symptom: P0325-KNOCK SENSOR #1 CIRCUIT When Monitored and Set Condition: P0325-KNOCK SENSOR #1 CIRCUIT When Monitored: With the ignition on and the engine running. Set Condition: The Knock Sensor circuit voltage falls below a minimum value at idle or deceleration.
Page 129 DRIVEABILITY - NGC P0325-KNOCK SENSOR #1 CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Knock Sensor harness connector. Disconnect the PCM harness connector. Measure the resistance between ground and the (K42) KS Signal circuit at the Knock Sensor harness connector.
Page 130 DRIVEABILITY - NGC P0325-KNOCK SENSOR #1 CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Replace the Knock Sensor. Ignition on, engine not running. With the DRBIII , erase DTC. Attempt to operate the vehicle using the information noted in the Freeze Frame. With the DRBIII , read DTC’s.
Page 131: P0335-Crankshaft Position Sensor Circuit
DRIVEABILITY - NGC Symptom: P0335-CRANKSHAFT POSITION SENSOR CIRCUIT When Monitored and Set Condition: P0335-CRANKSHAFT POSITION SENSOR CIRCUIT When Monitored: Engine cranking. Set Condition: No CKP signal is present during engine cranking, and at least 8 camshaft position sensor signals have occurred. One trip fault. POSSIBLE CAUSES CHECKING INTERMITTENT CMP SIGNAL WITH LAB INTERMITTENT CKP SIGNAL...
Page 132 DRIVEABILITY - NGC P0335-CRANKSHAFT POSITION SENSOR CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. With the DRBIII lab scope probe and the Miller special tool #6801, back probe the (K44) Camshaft Position (CMP) Sensor Signal circuit in the CMP harness connector. WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN.
Page 133 DRIVEABILITY - NGC P0335-CRANKSHAFT POSITION SENSOR CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the CKP Sensor harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 134 DRIVEABILITY - NGC P0335-CRANKSHAFT POSITION SENSOR CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the CKP Sensor harness connector. Ignition on, engine not running. Measure the voltage of the (K24) CKP Signal circuit in the CKP Sensor harness connector.
Page 135 DRIVEABILITY - NGC P0335-CRANKSHAFT POSITION SENSOR CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the CKP Sensor harness connector. Ignition on, engine not running. Measure the voltage on the (K6) 5 Volt Supply circuit in the CKP Sensor harness connector.
Page 136: P0339-Crankshaft Position Sensor Intermittent
DRIVEABILITY - NGC Symptom: P0339-CRANKSHAFT POSITION SENSOR INTERMITTENT When Monitored and Set Condition: P0339-CRANKSHAFT POSITION SENSOR INTERMITTENT When Monitored: Engine running or Cranking. Set Condition: When the failure counter reaches 20. One Trip Fault. POSSIBLE CAUSES GOOD TRIP EQUAL TO ZERO WIRING HARNESS INSPECTION (K6) 5 VOLT SUPPLY CIRCUIT OPEN OR SHORTED TO GROUND TONE WHEEL/PULSE RING INSPECTION...
Page 137 DRIVEABILITY - NGC P0339-CRANKSHAFT POSITION SENSOR INTERMITTENT — Continued TEST ACTION APPLICABILITY With the DRBIII , read and record Freeze Frame Data specific to the CKP signal, ECT, RPM, Sync state, vehicle speed, etc. Turn the ignition off. With the DRBIII lab scope probe and the Miller special tool #6801, backprobe the (K24) CKP Signal circuit at the Sensor harness connector.
Page 138 DRIVEABILITY - NGC P0339-CRANKSHAFT POSITION SENSOR INTERMITTENT — Continued TEST ACTION APPLICABILITY NOTE: An intermittent glitch in the Camshaft Position Sensor can cause the P0339 to set. Turn the ignition off. With the DRBIII lab scope probe and the Miller special tool #6801, backprobe the (K44) CMP Signal circuit at the Sensor harness connector.
Page 139 DRIVEABILITY - NGC P0339-CRANKSHAFT POSITION SENSOR INTERMITTENT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the CKP Sensor connector. Ignition on, engine not running. Measure the voltage on the (K24) CKP Signal circuit. Wiggle the related wire harness while taking this measurement. Does the voltage ever increase above 5.5 volts? Yes →...
Page 140: P0340-Camshaft Position Sensor Circuit
DRIVEABILITY - NGC Symptom: P0340-CAMSHAFT POSITION SENSOR CIRCUIT When Monitored and Set Condition: P0340-CAMSHAFT POSITION SENSOR CIRCUIT When Monitored: Engine cranking/running. Battery voltage greater than 10 volts. Set Condition: At least 5 seconds or 2.5 engine revolutions have elapsed with crankshaft position sensor signals present but no camshaft position sensor signal.
Page 141 DRIVEABILITY - NGC P0340-CAMSHAFT POSITION SENSOR CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. With the DRBIII lab scope probe and the Miller special tool #6801, back probe the (K24) CKP signal circuit in the CKP harness connector. WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN.
Page 142 DRIVEABILITY - NGC P0340-CAMSHAFT POSITION SENSOR CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the CMP Sensor harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 143 DRIVEABILITY - NGC P0340-CAMSHAFT POSITION SENSOR CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the CMP Sensor harness connector. Ignition on, engine not running. Measure the voltage of the (K44) CMP Signal circuit in the CMP Sensor harness connector.
Page 144 DRIVEABILITY - NGC P0340-CAMSHAFT POSITION SENSOR CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the CMP Sensor harness connector. Ignition on, engine not running. Measure the voltage of the (K6) 5 Volt Supply circuit in the CMP Sensor harness connector.
Page 145: P0344-Camshaft Position Sensor Intermittent
DRIVEABILITY - NGC Symptom: P0344-CAMSHAFT POSITION SENSOR INTERMITTENT When Monitored and Set Condition: P0344-CAMSHAFT POSITION SENSOR INTERMITTENT When Monitored: Engine running or Cranking. Set Condition: When the failure counter reaches 20. One Trip Fault. POSSIBLE CAUSES GOOD TRIP EQUAL TO ZERO WIRING HARNESS INSPECTION (K6) 5 VOLT SUPPLY CIRCUIT OPEN OR SHORTED TO GROUND TONE WHEEL/PULSE RING INSPECTION...
Page 146 DRIVEABILITY - NGC P0344-CAMSHAFT POSITION SENSOR INTERMITTENT — Continued TEST ACTION APPLICABILITY Visually inspect the related wire harness including the ground circuit. Look for any chafed, pierced, pinched, or partially broken wires. Visually inspect the related wire harness connectors. Look for broken, bent, pushed out, or corroded terminals.
Page 147 DRIVEABILITY - NGC P0344-CAMSHAFT POSITION SENSOR INTERMITTENT — Continued TEST ACTION APPLICABILITY If there are no possible causes remaining, view repair. Repair Replace the Camshaft Position Sensor. Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC. Turn the ignition off. Disconnect the CMP Sensor connector.
Page 148 DRIVEABILITY - NGC P0344-CAMSHAFT POSITION SENSOR INTERMITTENT — Continued TEST ACTION APPLICABILITY NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary. If there are no possible causes remaining, view repair. Repair Replace and program the Powertrain Control Module in accor- dance with the Service Information.
Page 149: P0401 - Egr System Performance
DRIVEABILITY - NGC Symptom: P0401 - EGR SYSTEM PERFORMANCE When Monitored and Set Condition: P0401 - EGR SYSTEM PERFORMANCE When Monitored: Engine running for greater than two minutes with the Engine Coolant Temp greater than 70°C (158°F). EGR active. Less than 8500 feet. Ambient temperature greater than 20°F (-6°C) Set Condition: The PCM closes the EGR valve while monitoring the O2 Sensor signal.
Page 150 DRIVEABILITY - NGC P0401 - EGR SYSTEM PERFORMANCE — Continued TEST ACTION APPLICABILITY NOTE: If the vehicle is running rough at idle (DRBIII not actuating) follow the yes path to continue. Turn the ignition on. Turn all accessories off. Start the engine. Allow the engine to reach normal operating temperature.
Page 151 DRIVEABILITY - NGC P0401 - EGR SYSTEM PERFORMANCE — Continued TEST ACTION APPLICABILITY Turn the ignition on. Turn all accessories off. Disconnect the EGR Solenoid harness connector. Using a 12-volt Test Light, jumper across the EGR Solenoid harness connector. With the DRB, actuate the EGR solenoid. Does the 12-volt test light flash on and off? Yes →...
Page 152: P0403 - Egr Control Circuit
DRIVEABILITY - NGC Symptom: P0403 - EGR CONTROL CIRCUIT When Monitored and Set Condition: P0403 - EGR CONTROL CIRCUIT When Monitored: Engine running. Battery voltage greater than 10 volts. Set Condition: The EGR solenoid control circuit is not in the expected state when requested to operate by the PCM.
Page 153 DRIVEABILITY - NGC P0403 - EGR CONTROL CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the EGR Solenoid harness connector. Disconnect the PCM harness connector. Using a 12-volt Test Light connected to the EGR Solenoid ground circuit, probe the EGR Solenoid Control circuit in the EGR Solenoid harness connector.
Page 154 DRIVEABILITY - NGC P0403 - EGR CONTROL CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the PCM harness connector. Disconnect the EGR Solenoid harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 155: P0404 - Egr Position Sensor Performance
DRIVEABILITY - NGC Symptom: P0404 - EGR POSITION SENSOR PERFORMANCE When Monitored and Set Condition: P0404 - EGR POSITION SENSOR PERFORMANCE When Monitored: With the ignition on. Battery voltage above 10.0 volts. Set Condition: The EGR flow or valve movement is not what is expected. POSSIBLE CAUSES GOOD TRIP EQUAL TO ZERO HIGH RESISTANCE IN 5 VOLT SUPPLY...
Page 156 DRIVEABILITY - NGC P0404 - EGR POSITION SENSOR PERFORMANCE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the EGR Solenoid harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 157 DRIVEABILITY - NGC P0404 - EGR POSITION SENSOR PERFORMANCE — Continued TEST ACTION APPLICABILITY NOTE: The conditions that set the DTC are not present at this time. The following list may help in identifying the intermittent condition. NOTE: Closely inspect the EGR tube(s) for obstructions, damage and holes. Also, inspect the gasket(s) for leaks.
Page 158 DRIVEABILITY - NGC P0404 - EGR POSITION SENSOR PERFORMANCE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the EGR Solenoid harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 159: P0405 - Egr Position Sensor Low
DRIVEABILITY - NGC Symptom: P0405 - EGR POSITION SENSOR LOW When Monitored and Set Condition: P0405 - EGR POSITION SENSOR LOW When Monitored: With the ignition on. Battery voltage above 10.0 volts. Set Condition: EGR Position Sensor Signal is less than 0.1026 of a volt. One trip Fault. POSSIBLE CAUSES EGR POSITION SENSOR SWEEP INTERMITTENT CONDITION...
Page 160 DRIVEABILITY - NGC P0405 - EGR POSITION SENSOR LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the EGR Solenoid harness connector. With the DRBIII , monitor the EGR Position Sensor voltage. Turn the ignition on. Is the voltage above 4.5 volts? Yes →...
Page 161 DRIVEABILITY - NGC P0405 - EGR POSITION SENSOR LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the EGR Solenoid harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 162: P0406 - Egr Position Sensor High
DRIVEABILITY - NGC Symptom: P0406 - EGR POSITION SENSOR HIGH When Monitored and Set Condition: P0406 - EGR POSITION SENSOR HIGH When Monitored: With the ignition on. Battery voltage greater than 10 volts. Set Condition: EGR position sensor signal is greater than 4.89. One trip Fault. POSSIBLE CAUSES EGR POSITION SENSOR SWEEP INTERMITTENT CONDITION...
Page 163 DRIVEABILITY - NGC P0406 - EGR POSITION SENSOR HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the EGR Solenoid harness connector. Turn the ignition on. Measure the voltage of the EGR Sensor Signal circuit in the EGR Position Sensor harness connector.
Page 164 DRIVEABILITY - NGC P0406 - EGR POSITION SENSOR HIGH — Continued TEST ACTION APPLICABILITY NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary. If there are no possible causes remaining, view repair. Repair Replace and program the Powertrain Control Module in accor- dance with the Service Information.
Page 165: P0420-Catalytic 1/1 Efficiency
DRIVEABILITY - NGC Symptom: P0420-CATALYTIC 1/1 EFFICIENCY When Monitored and Set Condition: P0420-CATALYTIC 1/1 EFFICIENCY When Monitored: Engine Run time greater than 90 seconds. Engine Coolant greater than 70°C (158°F) Vehicle speed greater than 20 MPH and less than 55 MPH. Engine Speed greater than 1216 RPM and less than 1952 RPM.
Page 166 DRIVEABILITY - NGC P0420-CATALYTIC 1/1 EFFICIENCY — Continued TEST ACTION APPLICABILITY Inspect the Catalytic Converter for the following damage. Damaged Catalytic Converter, dent and holes. Severe discoloration caused by overheating the Catalytic Converter. Catalytic Converter broke internally. Leaking Catalytic Converter. Were any problems found? Yes →...
Page 167: P0440-General Evap System Failure
DRIVEABILITY - NGC Symptom: P0440-GENERAL EVAP SYSTEM FAILURE When Monitored and Set Condition: P0440-GENERAL EVAP SYSTEM FAILURE When Monitored: Engine Running. Fuel Level greater than 12%. Ambient Temperature between 4°C and 32°C (39°F and 89°F) Set Condition: The PCM does not see the NVLD switch close during the medium/large leak test.
Page 168 DRIVEABILITY - NGC P0440-GENERAL EVAP SYSTEM FAILURE — Continued TEST ACTION APPLICABILITY Perform a visual and physical inspection of the entire Evaporative Emission system. Check for the following conditions: - Hoses disconnected or left off - Holes or cracks - Loose seal points - Evidence of damaged components - Incorrect routing of hoses and tubes - Fuel Cap left off or bad gasket seal...
Page 169 DRIVEABILITY - NGC P0440-GENERAL EVAP SYSTEM FAILURE — Continued TEST ACTION APPLICABILITY To continue testing you will need Miller Tool #8404 Evaporative Emission Leak Detector (EELD). WARNING: Keep lit cigarettes, sparks, flames, and other ignition sources away from the test area to prevent the ignition of explosive gases. Keep the test area well ventilated.
Page 170 DRIVEABILITY - NGC P0440-GENERAL EVAP SYSTEM FAILURE — Continued TEST ACTION APPLICABILITY NOTE: A thorough visual inspection of the Evap system hoses, tubes, and connections may save time in your diagnosis. Look for any physical damage or signs of wetness at connections. The strong smell of fuel vapors may aid diagnosis also.
Page 171 DRIVEABILITY - NGC P0440-GENERAL EVAP SYSTEM FAILURE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the NVLD electrical harness connector. Measure the resistance between the (Z1) Ground circuit and ground. Is the resistance below 5.0 ohms? Yes → Go To 10 →...
Page 172: P0441-Evap Purge System Performance
DRIVEABILITY - NGC Symptom: P0441-EVAP PURGE SYSTEM PERFORMANCE When Monitored and Set Condition: P0441-EVAP PURGE SYSTEM PERFORMANCE When Monitored: Cold start test. Engine Running. Small Leak Test Passed. Set Condition: The PCM activates the EVAP Purge solenoid gradually increases to maximum flow.
Page 173 DRIVEABILITY - NGC P0441-EVAP PURGE SYSTEM PERFORMANCE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Carefully inspect the Evap Purge Solenoid vacuum supply hose for proper routing. Check for a pinched or plugged hose from the throttle body to the Purge Solenoid. Inspect the vacuum port at the throttle body for any damage or plugging.
Page 174: P0442-Evap System Medium Leak
DRIVEABILITY - NGC Symptom List: P0442-EVAP SYSTEM MEDIUM LEAK P0455-EVAP SYSTEM LARGE LEAK Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0442-EVAP SYSTEM MEDIUM LEAK. When Monitored and Set Condition: P0442-EVAP SYSTEM MEDIUM LEAK When Monitored: Engine Running.
Page 175 DRIVEABILITY - NGC P0442-EVAP SYSTEM MEDIUM LEAK — Continued TEST ACTION APPLICABILITY NOTE: Since a hot vehicle can conceal a leak, it is best to perform this test at room temperature. NOTE: A loose gas cap could have caused this DTC to set. Make sure gas cap is tight and in good condition.
Page 176 DRIVEABILITY - NGC P0442-EVAP SYSTEM MEDIUM LEAK — Continued TEST ACTION APPLICABILITY To continue testing you will need Miller Tool #8404 Evaporative Emission Leak Detector (EELD). WARNING: Keep lighted cigarettes, sparks, flames, and other ignition sources away from the test area to prevent the ignition of explosive gases. Keep the test area well ventilated.
Page 177 DRIVEABILITY - NGC P0442-EVAP SYSTEM MEDIUM LEAK — Continued TEST ACTION APPLICABILITY NOTE: A thorough visual inspection of the Evap system hoses, tubes, and connections may save time in your diagnosis. Look for any physical damage or signs of wetness at connections. The strong smell of fuel vapors may aid diagnosis also.
Page 178 DRIVEABILITY - NGC P0442-EVAP SYSTEM MEDIUM LEAK — Continued TEST ACTION APPLICABILITY Reconnect all vacuum hoses. Start the engine. Allow the engine to idle. Using the DRBIII , perform the NVLD FORCED MONITOR TEST. Monitor the NVLD Switch. As the test runs, the NVLD Switch should go from an OPEN state to CLOSED.
Page 179: P0443-Evap Purge Solenoid Circuit
DRIVEABILITY - NGC Symptom: P0443-EVAP PURGE SOLENOID CIRCUIT When Monitored and Set Condition: P0443-EVAP PURGE SOLENOID CIRCUIT When Monitored: The ignition on or engine running. Battery voltage greater than 10 volts. Set Condition: The PCM will set a trouble code if the actual state of the solenoid does not match the intended state.
Page 180 DRIVEABILITY - NGC P0443-EVAP PURGE SOLENOID CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Evap Purge Solenoid harness connector. Disconnect the PCM harness connectors. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 181 DRIVEABILITY - NGC P0443-EVAP PURGE SOLENOID CIRCUIT — Continued TEST ACTION APPLICABILITY NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary. If there are no possible causes remaining, view repair. Repair Replace and program the Powertrain Control Module in accor- dance with the Service Information.
Page 182: P0452-Nvld Pressure Switch Sense Circuit Low
DRIVEABILITY - NGC Symptom: P0452-NVLD PRESSURE SWITCH SENSE CIRCUIT LOW When Monitored and Set Condition: P0452-NVLD PRESSURE SWITCH SENSE CIRCUIT LOW When Monitored: Immediately after engine start up. Set Condition: The PCM activates the NLVD Solenoid. If the PCM does not see the NVLD switch open, an error is detected.
Page 183 DRIVEABILITY - NGC P0452-NVLD PRESSURE SWITCH SENSE CIRCUIT LOW — Continued TEST ACTION APPLICABILITY NOTE: After disconnecting the Evap Purge Solenoid vacuum connections, inspect the lines and solenoid for any signs of contamination from the EVAP Canister. This may indicate a faulty rollover valve. Replace/repair as necessary.
Page 184 DRIVEABILITY - NGC P0452-NVLD PRESSURE SWITCH SENSE CIRCUIT LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the EVAP Purge Solenoid harness connector. Disconnect the Powertrain Control Module harness connectors. Measure the resistance between ground and the (K52) EVAP Purge Sol Control circuit at the EVAP Purge Solenoid harness connector.
Page 185: P0453-Nvld Pressure Switch Sense Circuit High
DRIVEABILITY - NGC Symptom: P0453-NVLD PRESSURE SWITCH SENSE CIRCUIT HIGH When Monitored and Set Condition: P0453-NVLD PRESSURE SWITCH SENSE CIRCUIT HIGH When Monitored: Engine Running. Set Condition: If the PCM does not see the NVLD swtich close during test, an error is detected.
Page 186 DRIVEABILITY - NGC P0453-NVLD PRESSURE SWITCH SENSE CIRCUIT HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the NVLD electrical harness connector. Measure the resistance between the (K107) NVLD Switch Signal circuit and (K106) NVLD Sol Control circuit in the NVLD electrical harness connector. Is the resistance below 5.0 ohms? Yes →...
Page 187: P0456-Evap System Small Leak
DRIVEABILITY - NGC Symptom: P0456-EVAP SYSTEM SMALL LEAK When Monitored and Set Condition: P0456-EVAP SYSTEM SMALL LEAK When Monitored: Ignition off. Fuel Level less than 88%. Ambient Temperature between 4°C to 43°C (39°F to 109°F) Set Condition: Due to temperature changes a vacuum is created in the fuel tank and EVAP system.
Page 188 DRIVEABILITY - NGC P0456-EVAP SYSTEM SMALL LEAK — Continued TEST ACTION APPLICABILITY NOTE: A thorough visual inspection of the Evap system hoses, tubes, and connections may save time in your diagnosis. Look for any physical damage or signs of wetness at connections. The strong smell of fuel vapors may aid diagnosis also.
Page 189: P0461-Fuel Level Sensor #1 Performance
DRIVEABILITY - NGC Symptom List: P0461-FUEL LEVEL SENSOR #1 PERFORMANCE P2066-FUEL LEVEL SENSOR #2 PERFORMANCE Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0461-FUEL LEVEL SENSOR #1 PERFORMANCE. When Monitored and Set Condition: P0461-FUEL LEVEL SENSOR #1 PERFORMANCE When Monitored: TEST #1: With the ignition on, the fuel level is compared to the previous key down after a 20 second delay.
Page 190 DRIVEABILITY - NGC P0461-FUEL LEVEL SENSOR #1 PERFORMANCE — Continued TEST ACTION APPLICABILITY NOTE: Diagnose any Fuel Gauge high or low DTCs first, if set along with this DTC. NOTE: The following test should be performed on the Fuel Level Sensor that set the DTC.
Page 191 DRIVEABILITY - NGC P0461-FUEL LEVEL SENSOR #1 PERFORMANCE — Continued TEST ACTION APPLICABILITY WARNING: The fuel system is under a constant pressure even with the engine off. Before opening the fuel system the fuel pressure must be release. Relieve the fuel pressure in accordance with the service information. Remove the Fuel Tank in accordance with the Service Information.
Page 192: P0462-Fuel Level Sensor #1 Low
DRIVEABILITY - NGC Symptom List: P0462-FUEL LEVEL SENSOR #1 LOW P0463-FUEL LEVEL SENSOR #1 HIGH P2067-FUEL LEVEL SENSOR #2 LOW P2068-FUEL LEVEL SENSOR #2 HIGH Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0462-FUEL LEVEL SENSOR #1 LOW.
Page 193 DRIVEABILITY - NGC P0462-FUEL LEVEL SENSOR #1 LOW — Continued TEST ACTION APPLICABILITY Turn the ignition on. With the DRBIII , read DTC’s. Is the Good Trip displayed and equal to zero? Yes → Refer to the Instrument Cluster Category and perform the appro- priate symptoms.
Page 194: P0480-Cooling Fan 1 Control Circuit
DRIVEABILITY - NGC Symptom: P0480-COOLING FAN 1 CONTROL CIRCUIT When Monitored and Set Condition: P0480-COOLING FAN 1 CONTROL CIRCUIT When Monitored: With the ignition on. Battery voltage greater than 10 volts. Set Condition: An open or shorted circuit is detected in the radiator fan relay control circuit.
Page 195 DRIVEABILITY - NGC P0480-COOLING FAN 1 CONTROL CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Remove the Low Speed Radiator Fan Relay from the PDC. Measure the resistance of the Low Speed Radiator Fan Relay between the Fused Ignition Switch Output terminal and the Low Speed Rad Fan Relay Control terminal.
Page 196: P0481-Cooling Fan 2 Control Circuit
DRIVEABILITY - NGC Symptom: P0481-COOLING FAN 2 CONTROL CIRCUIT When Monitored and Set Condition: P0481-COOLING FAN 2 CONTROL CIRCUIT When Monitored: With the ignition on. Battery voltage greater than 10 volts. Set Condition: An open or shorted circuit is detected in the radiator fan relay control circuit.
Page 197 DRIVEABILITY - NGC P0481-COOLING FAN 2 CONTROL CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Remove the High Speed Radiator Fan Relay from the PDC. Measure the resistance of the High Speed Radiator Fan Relay between the Fused Ignition Switch Output terminal and the High Speed Rad Fan Relay Control terminal.
Page 198: P0498-Nvld Canister Vent Valve Solenoid Circuit Low
DRIVEABILITY - NGC Symptom: P0498-NVLD CANISTER VENT VALVE SOLENOID CIRCUIT LOW When Monitored and Set Condition: P0498-NVLD CANISTER VENT VALVE SOLENOID CIRCUIT LOW When Monitored: Engine Running. Set Condition: The PCM detects a short in the NVLD Canister vent solenoid circuits. One trip Fault.
Page 199: P0499-Nvld Canister Vent Valve Solenoid Circuit High
DRIVEABILITY - NGC Symptom: P0499-NVLD CANISTER VENT VALVE SOLENOID CIRCUIT HIGH When Monitored and Set Condition: P0499-NVLD CANISTER VENT VALVE SOLENOID CIRCUIT HIGH When Monitored: Engine Running. Set Condition: The PCM detects an open in the NVLD Canister vent solenoid circuits. One trip Fault.
Page 200 DRIVEABILITY - NGC P0499-NVLD CANISTER VENT VALVE SOLENOID CIRCUIT HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the NVLD Assembly harness connector. Disconnect the PCM harness connector. Turn the ignition on. Measure the voltage on the (K106) NVLD Sol Control circuit in the NVLD Assembly harness connector.
Page 201: P0501-Vehicle Speed Sensor #1 Performance
DRIVEABILITY - NGC Symptom: P0501-VEHICLE SPEED SENSOR #1 PERFORMANCE When Monitored and Set Condition: P0501-VEHICLE SPEED SENSOR #1 PERFORMANCE When Monitored: Engine running. Transmission not in park or neutral. Brakes not applied. Engine run time greater than 10 seconds. Engine RPM above idle. Set Condition: The PCM does not see vehicle speed signal from the transmission control side of the PCM.
Page 202: P0506-Idle Speed Low Performance
DRIVEABILITY - NGC Symptom List: P0506-IDLE SPEED LOW PERFORMANCE P0507-IDLE SPEED HIGH PERFORMANCE Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0506-IDLE SPEED LOW PER- FORMANCE. When Monitored and Set Condition: P0506-IDLE SPEED LOW PERFORMANCE When Monitored: Engine Running.
Page 203 DRIVEABILITY - NGC P0506-IDLE SPEED LOW PERFORMANCE — Continued TEST ACTION APPLICABILITY Visually and Physically inspect the PCV system. Check for the PCV valve disconnected. Check for an incorrect PCV valve. The PCV valve must meet OEM specifications. Damage vacuum hose. Were any of the above condition found? Yes →...
Page 204: P0508-Iac Valve Sense Circuit Low
DRIVEABILITY - NGC Symptom: P0508-IAC VALVE SENSE CIRCUIT LOW When Monitored and Set Condition: P0508-IAC VALVE SENSE CIRCUIT LOW When Monitored: Engine running. Battery voltage greater than 10 volts. Set Condition: The IAC sense circuit is less than 175 mA. One Trip Fault. POSSIBLE CAUSES IAC MOTOR OPERATION IAC MOTOR...
Page 205 DRIVEABILITY - NGC P0508-IAC VALVE SENSE CIRCUIT LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the IAC Motor harness connector. Disconnect the PCM harness connectors. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 206 DRIVEABILITY - NGC P0508-IAC VALVE SENSE CIRCUIT LOW — Continued TEST ACTION APPLICABILITY NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary. If there are no possible causes remaining, view repair. Repair Replace and program the Powertrain Control Module in accor- dance with the Service Information.
Page 207: P0509-Iac Valve Sense Circuit High
DRIVEABILITY - NGC Symptom: P0509-IAC VALVE SENSE CIRCUIT HIGH When Monitored and Set Condition: P0509-IAC VALVE SENSE CIRCUIT HIGH When Monitored: Engine running. Battery voltage greater than 10 volts. Set Condition: The IAC sense circuit is greater than 980 mA. One Trip Fault. POSSIBLE CAUSES IAC MOTOR OPERATION IAC MOTOR...
Page 208 DRIVEABILITY - NGC P0509-IAC VALVE SENSE CIRCUIT HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the IAC Motor harness connector. Turn the ignition on. With the DRBIII , actuate the ASD Relay. Measure the voltage of the (K60) IAC Signal circuit in the IAC Motor harness connector.
Page 209: P0513-Invalid Skim Key
DRIVEABILITY - NGC Symptom: P0513-INVALID SKIM KEY When Monitored and Set Condition: P0513-INVALID SKIM KEY When Monitored: Ignition on. Set Condition: The PCM detects an invalid SKIM key. POSSIBLE CAUSES INCORRECT VIN IN PCM INVALID SKIM KEY NOT PRESENT NO COMMUNICATION WITH SKIM NO VIN PROGRAMMED IN THE PCM SKIM TROUBLE CODES SET TEST...
Page 210 DRIVEABILITY - NGC P0513-INVALID SKIM KEY — Continued TEST ACTION APPLICABILITY Turn the ignition on. With the DRBIII , display the VIN that is programmed in the PCM. Was the correct VIN programmed into the PCM? Yes → Go To 6 →...
Page 211: P0516-Battery Temperature Sensor Low
DRIVEABILITY - NGC Symptom: P0516-BATTERY TEMPERATURE SENSOR LOW When Monitored and Set Condition: P0516-BATTERY TEMPERATURE SENSOR LOW When Monitored: Ignition on. Set Condition: Battery temperature sensor voltage below 0.5 of a volt. POSSIBLE CAUSES BATTERY TEMP SENSOR VOLTAGE BELOW 0.5 VOLTS BATTERY TEMP SENSOR INTERNAL FAILURE BATTERY TEMP SIGNAL SHORTED TO GROUND BATTERY TEMP SIGNAL SHORTED TO SENSOR GROUND CIRCUIT...
Page 212 DRIVEABILITY - NGC P0516-BATTERY TEMPERATURE SENSOR LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Battery Temp Sensor harness connector. Disconnect the PCM harness connector. Measure the resistance between the Battery Temp Signal circuit and the Sensor ground circuit in the Battery Temp Sensor harness connector.
Page 213: P0517-Battery Temperature Sensor High
DRIVEABILITY - NGC Symptom: P0517-BATTERY TEMPERATURE SENSOR HIGH When Monitored and Set Condition: P0517-BATTERY TEMPERATURE SENSOR HIGH When Monitored: Ignition on. Set Condition: Battery temperature voltage above 4.8 volts. POSSIBLE CAUSES BATTERY TEMP VOLTAGE ABOVE 4.8 VOLTS BATTERY TEMP SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE BATTERY TEMP SENSOR INTERNAL FAILURE BATTERY TEMP SIGNAL CIRCUIT OPEN SENSOR GROUND CIRCUIT OPEN...
Page 214 DRIVEABILITY - NGC P0517-BATTERY TEMPERATURE SENSOR HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Battery Temp harness connector. Connect a jumper wire between the Battery Temp Signal circuit and the Sensor ground circuit in the Battery Temp harness connector. Ignition on, engine not running.
Page 215: P0522 Pressure Sensor Low
DRIVEABILITY - NGC Symptom: P0522 PRESSURE SENSOR LOW When Monitored and Set Condition: P0522 PRESSURE SENSOR LOW When Monitored: Engine running and battery voltage above 10.4 volts. Set Condition: The oil pressure sensor voltage at PCM goes below 0.1 of a volt for 0.5 of a second.
Page 216: P0532-A/C Pressure Sensor Low
DRIVEABILITY - NGC Symptom: P0532-A/C PRESSURE SENSOR LOW When Monitored and Set Condition: P0532-A/C PRESSURE SENSOR LOW When Monitored: The engine running. The A/C relay energized. Set Condition: The A/C pressure sensor signal voltage at the PCM goes below 0.58 volts for 2.6 seconds.
Page 217 DRIVEABILITY - NGC P0532-A/C PRESSURE SENSOR LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the A/C Pressure Sensor harness connector. With the DRBIII , monitor the A/C Pressure Sensor voltage. Turn the ignition on. Is the voltage above 0.6 of a volt? Yes →...
Page 218 DRIVEABILITY - NGC P0532-A/C PRESSURE SENSOR LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the A/C Pressure Sensor harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 219: P0533-A/C Pressure Sensor High
DRIVEABILITY - NGC Symptom: P0533-A/C PRESSURE SENSOR HIGH When Monitored and Set Condition: P0533-A/C PRESSURE SENSOR HIGH When Monitored: The engine running. The A/C relay energized. Set Condition: The A/C pressure sensor signal at the PCM goes above 4.92 volts. One trip Fault.
Page 220 DRIVEABILITY - NGC P0533-A/C PRESSURE SENSOR HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the A/C Pressure Sensor harness connector. Turn the ignition on. Measure the voltage on the (C18) A/C Pressure Sensor Signal circuit at the A/C Pressure Sensor harness connector.
Page 221 DRIVEABILITY - NGC P0533-A/C PRESSURE SENSOR HIGH — Continued TEST ACTION APPLICABILITY NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary. If there are no possible causes remaining, view repair. Repair Replace and program the Powertrain Control Module in accor- dance with the Service Information.
Page 222: P0562-Battery Voltage Low
DRIVEABILITY - NGC Symptom: P0562-BATTERY VOLTAGE LOW When Monitored and Set Condition: P0562-BATTERY VOLTAGE LOW When Monitored: Engine Running. RPM greater than 1152. Set Condition: The battery sensed voltage is 1 volt below the charging goal for 13.47 seconds. The PCM senses the battery voltage turns off the field driver and senses the battery voltage again.
Page 223 DRIVEABILITY - NGC P0562-BATTERY VOLTAGE LOW — Continued TEST ACTION APPLICABILITY WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING. Ignition on, engine not running.
Page 224 DRIVEABILITY - NGC P0562-BATTERY VOLTAGE LOW — Continued TEST ACTION APPLICABILITY Ignition on, engine not running. Disconnect the Generator Field harness connector. Disconnect the PCM harness connector. Measure the resistance between ground and the (K20) Gen Field Control circuit in the Generator Field harness connector.
Page 225: P0563-Battery Voltage High
DRIVEABILITY - NGC Symptom: P0563-BATTERY VOLTAGE HIGH When Monitored and Set Condition: P0563-BATTERY VOLTAGE HIGH When Monitored: The engine running. The engine speed greater than 380 RPM. Set Condition: Battery voltage is 1 volt greater than desired system voltage. One Trip Fault POSSIBLE CAUSES GOOD TRIP EQUAL TO ZERO...
Page 226 DRIVEABILITY - NGC P0563-BATTERY VOLTAGE HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Generator Field harness connector. Disconnect the PCM harness connector. Measure the voltage on the (K20) Gen Field Control circuit at the Generator Field harness connector.
Page 227: P0572-Brake Switch #1 Circuit Low
DRIVEABILITY - NGC Symptom: P0572-BRAKE SWITCH #1 CIRCUIT LOW When Monitored and Set Condition: P0572-BRAKE SWITCH #1 CIRCUIT LOW When Monitored: Ignition on. Set Condition: When the PCM recognizes Brake Switch is mechanically stuck in the low/on position. One Trip Fault. POSSIBLE CAUSES GOOD TRIP EQUAL TO ZERO BRAKE LAMP SWITCH OPERATION...
Page 228 DRIVEABILITY - NGC P0572-BRAKE SWITCH #1 CIRCUIT LOW — Continued TEST ACTION APPLICABILITY NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary. Using the schematics as a guide, inspect the wire harness and connectors. Pay particular attention to all Power and Ground circuits.
Page 229: P0573-Brake Switch #1 Circuit High
DRIVEABILITY - NGC Symptom: P0573-BRAKE SWITCH #1 CIRCUIT HIGH When Monitored and Set Condition: P0573-BRAKE SWITCH #1 CIRCUIT HIGH When Monitored: Ignition on. Set Condition: When the PCM recognizes Brake Switch is stuck in the high/off position. One Trip Fault. POSSIBLE CAUSES GOOD TRIP EQUAL TO ZERO BRAKE LAMP SWITCH OPERATION...
Page 230 DRIVEABILITY - NGC P0573-BRAKE SWITCH #1 CIRCUIT HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the PCM harness connectors. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 231: P0580-Speed Control Switch #1 Low
DRIVEABILITY - NGC Symptom: P0580-SPEED CONTROL SWITCH #1 LOW When Monitored and Set Condition: P0580-SPEED CONTROL SWITCH #1 LOW When Monitored: With the ignition key on. Battery voltage above 10 volts. Set Condition: The PCM detects the Speed Control Switch Signal circuit voltage is less than 0.43.
Page 232 DRIVEABILITY - NGC P0580-SPEED CONTROL SWITCH #1 LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Speed Control On/Off Switch harness connector. Disconnect the Speed Control Resume/Accel Switch harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 233: P0581-Speed Control Switch #1 High
DRIVEABILITY - NGC Symptom: P0581-SPEED CONTROL SWITCH #1 HIGH When Monitored and Set Condition: P0581-SPEED CONTROL SWITCH #1 HIGH When Monitored: With the ignition key on. Battery voltage above 10 volts. Set Condition: The PCM detects an open or short to voltage in the Speed Control Switch Signal circuit.
Page 234 DRIVEABILITY - NGC P0581-SPEED CONTROL SWITCH #1 HIGH — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Speed Control On/Off Switch harness connector. Disconnect the Speed Control Resume/Accel Switch harness connector. Disconnect the PCM harness connector. Measure the voltage of the (V37) S/C Switch Signal circuit at the Speed Control harness connector.
Page 235: P0582-Speed Control Vacuum Solenoid Circuit
DRIVEABILITY - NGC Symptom: P0582-SPEED CONTROL VACUUM SOLENOID CIRCUIT When Monitored and Set Condition: P0582-SPEED CONTROL VACUUM SOLENOID CIRCUIT When Monitored: Ignition on. Speed Control active. Set Condition: The PCM detects an open or short to voltage in the Speed Control Vacuum Control circuit.
Page 236 DRIVEABILITY - NGC P0582-SPEED CONTROL VACUUM SOLENOID CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the S/C Servo harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 237: P0586-Speed Control Vent Solenoid Circuit
DRIVEABILITY - NGC Symptom: P0586-SPEED CONTROL VENT SOLENOID CIRCUIT When Monitored and Set Condition: P0586-SPEED CONTROL VENT SOLENOID CIRCUIT When Monitored: Ignition on. Speed Control active. Set Condition: The PCM detects an open or short to voltage in the Speed Control Vent Control circuit.
Page 238 DRIVEABILITY - NGC P0586-SPEED CONTROL VENT SOLENOID CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the S/C Servo harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 239: P0594-Speed Control Servo Power Circuit
DRIVEABILITY - NGC Symptom: P0594-SPEED CONTROL SERVO POWER CIRCUIT When Monitored and Set Condition: P0594-SPEED CONTROL SERVO POWER CIRCUIT When Monitored: With the ignition key on. The speed control switched on. Set Condition: The PCM detects a open or short in the Speed Control Power Supply circuit.
Page 240 DRIVEABILITY - NGC P0594-SPEED CONTROL SERVO POWER CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the PCM harness connector. Disconnect the Brake Lamp Switch harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 241 DRIVEABILITY - NGC P0594-SPEED CONTROL SERVO POWER CIRCUIT — Continued TEST ACTION APPLICABILITY Disconnect the Brake Lamp Switch harness connector. Ignition on, engine not running. Using a 12-volt test light connected to ground, probe the (V32) Speed Control Power Supply circuit in the Brake Lamp Switch harness connector. NOTE: It is necessary to HOLD the Cruise Control Switch in the ON position to get an accurate reading.
Page 242: P0600-Serial Communication Link
DRIVEABILITY - NGC Symptom List: P0600-SERIAL COMMUNICATION LINK P0601-INTERNAL MEMORY CHECKSUM INVALID Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0600-SERIAL COMMUNICA- TION LINK. When Monitored and Set Condition: P0600-SERIAL COMMUNICATION LINK When Monitored: With the ignition on.
Page 243: P0622-Generator Field Control Circuit
DRIVEABILITY - NGC Symptom: P0622-GENERATOR FIELD CONTROL CIRCUIT When Monitored and Set Condition: P0622-GENERATOR FIELD CONTROL CIRCUIT When Monitored: With the ignition on. Engine running. Set Condition: When the PCM tries to regulate the generator field with no result during monitoring.
Page 244 DRIVEABILITY - NGC P0622-GENERATOR FIELD CONTROL CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Generator Field harness connector. Using a 12-volt test connected to battery voltage, probe the (Z1) Gen Ground circuit in the Generator Field harness connector. Does the test light illuminate brightly? Yes →...
Page 245: P0627-Fuel Pump Relay Circuit
DRIVEABILITY - NGC Symptom: P0627-FUEL PUMP RELAY CIRCUIT When Monitored and Set Condition: P0627-FUEL PUMP RELAY CIRCUIT When Monitored: With the ignition on. Battery voltage greater than 10.4 volts. Set Condition: An open or shorted condition is detected in the fuel pump relay control circuit.
Page 246 DRIVEABILITY - NGC P0627-FUEL PUMP RELAY CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Remove the Fuel Pump Relay from the PDC. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 247: P0630-Vin Not Programmed In Pcm
DRIVEABILITY - NGC Symptom: P0630-VIN NOT PROGRAMMED IN PCM When Monitored and Set Condition: P0630-VIN NOT PROGRAMMED IN PCM When Monitored: Ignition on. Set Condition: The VIN has not been programmed into the PCM. POSSIBLE CAUSES PROGRAMMING VIN INTO PCM VERIFY PCM PROGRAMMING TEST ACTION...
Page 248: P0632-Odometer Not Programmed In Pcm
DRIVEABILITY - NGC Symptom: P0632-ODOMETER NOT PROGRAMMED IN PCM When Monitored and Set Condition: P0632-ODOMETER NOT PROGRAMMED IN PCM When Monitored: Ignition on. Set Condition: The mileage has not been programmed into the PCM. POSSIBLE CAUSES PROGRAMMING MILEAGE INTO PCM VERIFY PCM PROGRAMMING TEST ACTION...
Page 249: P0633-Skim Key Not Programmed In Pcm
DRIVEABILITY - NGC Symptom: P0633-SKIM KEY NOT PROGRAMMED IN PCM When Monitored and Set Condition: P0633-SKIM KEY NOT PROGRAMMED IN PCM When Monitored: Ignition on. Set Condition: The SKIM Key information has not been programmed into the PCM. POSSIBLE CAUSES PROGRAMMING SKIM KEY INTO PCM VERIFY PCM PROGRAMMING TEST...
Page 250: P0645-A/C Clutch Relay Circuit
DRIVEABILITY - NGC Symptom: P0645-A/C CLUTCH RELAY CIRCUIT When Monitored and Set Condition: P0645-A/C CLUTCH RELAY CIRCUIT When Monitored: With the ignition on. Battery voltage greater than 10 volts. A/C Switch Set Condition: An open or shorted condition is detected in the A/C clutch relay control circuit.
Page 251 DRIVEABILITY - NGC P0645-A/C CLUTCH RELAY CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Remove the A/C Clutch Relay from the PDC. Measure the resistance of the A/C Clutch Relay between the Fused Ignition Switch Output terminal and the A/C Clutch Relay Control terminal. Is the resistance between 60 to 95 ohms? Yes →...
Page 252: P0660-Manifold Tune Valve Solenoid Circuit
DRIVEABILITY - NGC Symptom: P0660-MANIFOLD TUNE VALVE SOLENOID CIRCUIT When Monitored and Set Condition: P0660-MANIFOLD TUNE VALVE SOLENOID CIRCUIT When Monitored: With the ignition on. ASD Relay energized. Battery voltage greater than 10 volts. Set Condition: The PCM senses the MTV is not at the desired state. One Trip Fault. POSSIBLE CAUSES GOOD TRIP EQUAL TO ZERO GROUND CIRCUIT OPEN...
Page 253 DRIVEABILITY - NGC P0660-MANIFOLD TUNE VALVE SOLENOID CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the MTV Solenoid harness connector. Remove the MTV Relay from the IPM. Measure the resistance of the MTV Relay Output circuit between the IPM and the MTV Solenoid harness connector.
Page 254 DRIVEABILITY - NGC P0660-MANIFOLD TUNE VALVE SOLENOID CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the PCM harness connector. Disconnect the MTV Relay from the IPM. Measure the resistance of the MTV Relay Control circuit between the PCM harness connector and the IPM.
Page 255: P0685-Asd Relay Control Circuit
DRIVEABILITY - NGC Symptom: P0685-ASD RELAY CONTROL CIRCUIT When Monitored and Set Condition: P0685-ASD RELAY CONTROL CIRCUIT When Monitored: With ignition on. Battery voltage above 10 volts. Set Condition: An open or shorted condition is detected in the ASD relay control circuit. One trip Fault.
Page 256 DRIVEABILITY - NGC P0685-ASD RELAY CONTROL CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Remove the ASD Relay from the PDC. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 257: P0688-Asd Relay Sense Circuit Low
DRIVEABILITY - NGC Symptom: P0688-ASD RELAY SENSE CIRCUIT LOW When Monitored and Set Condition: P0688-ASD RELAY SENSE CIRCUIT LOW When Monitored: With ignition key on. Battery voltage greater than 10 volts. Set Condition: No voltage sensed at the PCM when the ASD relay is energized. One Trip Fault.
Page 258 DRIVEABILITY - NGC P0688-ASD RELAY SENSE CIRCUIT LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Remove the ASD Relay from the PDC. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 259 DRIVEABILITY - NGC P0688-ASD RELAY SENSE CIRCUIT LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Remove the ASD Relay from the PDC. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 260: P0700-Transmission Control System/Read Transmission Dtcs
DRIVEABILITY - NGC Symptom: P0700-TRANSMISSION CONTROL SYSTEM/READ TRANSMISSION DTCS ON THE DRBIII TEST ACTION APPLICABILITY This is an informational DTC letting you know that a DTC(s) is stored in the Transmission Control Module. Erase this DTC from the PCM after all Transmission DTC(s) have been repaired. Using the DRBIII , read the Transmission Controller DTC and refer to the Transmission Category and perform the appropriate symptom.
Page 261: P0850-Park/Neutral Switch Performance
DRIVEABILITY - NGC Symptom: P0850-PARK/NEUTRAL SWITCH PERFORMANCE When Monitored and Set Condition: P0850-PARK/NEUTRAL SWITCH PERFORMANCE When Monitored: Continuously with the transmission in Park, Neutral, or Drive and NOT in Limp-in mode. Set Condition: The PCM detects an incorrect Park/Neutral switch state for a given mode of vehicle operation.
Page 262: P1115-General Temp Sensor Performance
DRIVEABILITY - NGC Symptom: P1115-GENERAL TEMP SENSOR PERFORMANCE When Monitored and Set Condition: P1115-GENERAL TEMP SENSOR PERFORMANCE When Monitored: Engine off time is greater than 480 minutes. Ambient temperature is greater than -23°C (-10°F). Set Condition: After a calibrated amount of cool down time, the PCM compares the ECT Sensor, IAT Sensor and the Ambient Air Temperature Sensor values.
Page 263 DRIVEABILITY - NGC P1115-GENERAL TEMP SENSOR PERFORMANCE — Continued TEST ACTION APPLICABILITY Turn the ignition on. With the DRBIII , read and record the AAT Sensor Temperature value Using the DRB Temperature Probe #CH7050, measure the ambient air temperature near the AAT sensor. Is the AAT Sensor value with -15°C (5°F) of the temperature probe reading? Yes →...
Page 264 DRIVEABILITY - NGC P1115-GENERAL TEMP SENSOR PERFORMANCE — Continued TEST ACTION APPLICABILITY NOTE: Visually inspect both the component and the PCM connectors. Look for damage, partially broken wires and backed out or corroded terminals Turn the ignition off. Disconnect the applicable Temperature Sensor harness connector. Ignition on, engine not running.
Page 265 DRIVEABILITY - NGC P1115-GENERAL TEMP SENSOR PERFORMANCE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the applicable Temperature Sensor harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 266: P1593-Speed Control Switch Stuck
DRIVEABILITY - NGC Symptom: P1593-SPEED CONTROL SWITCH STUCK When Monitored and Set Condition: P1593-SPEED CONTROL SWITCH STUCK When Monitored: Ignition on. Set Condition: S/C Switch is mechanically stuck in the On/Off, Resume/Accel, or Set position for too long. One trip fault. POSSIBLE CAUSES SPEED CONTROL SWITCH STATUS SPEED CONTROL SWITCHES...
Page 267 DRIVEABILITY - NGC P1593-SPEED CONTROL SWITCH STUCK — Continued TEST ACTION APPLICABILITY Turn the ignition off. Remove the Speed Control Switches from the steering wheel. Measure the resistance across each Switch Control Switch. Monitor the ohmmeter while pressing each function button on each switch. Resume/Accel - 15,400 ohms Cancel - 909 +/- 9 ohms Decel (Coast) - 2940 +/- 30 ohms...
Page 268 DRIVEABILITY - NGC P1593-SPEED CONTROL SWITCH STUCK — Continued TEST ACTION APPLICABILITY NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage or terminal push out. Repair as necessary. Using the schematics as a guide, inspect the wire harness and connectors. Pay particular attention to all Power and Ground circuits.
Page 269: P1602-Pcm Not Programmed
DRIVEABILITY - NGC Symptom: P1602-PCM NOT PROGRAMMED When Monitored and Set Condition: P1602-PCM NOT PROGRAMMED When Monitored: Ignition on. Set Condition: The PCM has not been programmed. POSSIBLE CAUSES PCM NOT PROGRAMMED VERIFY PCM PROGRAMMING TEST ACTION APPLICABILITY Ignition on, engine not running. With the DRBIII , erase DTCs.
Page 270: P1603-Pcm Internal Dual-Port Ram Communication
DRIVEABILITY - NGC Symptom List: P1603-PCM INTERNAL DUAL-PORT RAM COMMUNICATION P1604-PCM INTERNAL DUAL-PORT RAM READ/WRITE INTEG- RITY FAILURE P1607-PCM INTERNAL SHUTDOWN TIMER RATIONALITY Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P1603-PCM INTERNAL DUAL- PORT RAM COMMUNICATION.
Page 271: P1696-Eeprom Memory Write Denied/Invalid
DRIVEABILITY - NGC Symptom List: P1696-EEPROM MEMORY WRITE DENIED/INVALID P1697-EMR (SRI) MILEAGE NOT STORED Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P1696-EEPROM MEMORY WRITE DENIED/INVALID. When Monitored and Set Condition: P1696-EEPROM MEMORY WRITE DENIED/INVALID When Monitored: With the ignition on continuous.
Page 272 DRIVEABILITY - NGC P1696-EEPROM MEMORY WRITE DENIED/INVALID — Continued TEST ACTION APPLICABILITY With the DRBIII , perform the SRI Memory Test a second time. NOTE: Retest the SRI Memory two more times. Does the DRBIII display Write Refused again? Yes → Replace and program the Powertrain Control Module in accor- dance with the Service Information.
Page 273: P1861-Siphon Line Disconnected
DRIVEABILITY - NGC Symptom: P1861-SIPHON LINE DISCONNECTED When Monitored and Set Condition: P1861-SIPHON LINE DISCONNECTED When Monitored: With the ignition key on. Set Condition: PCM compares the primary tank level with the secondary tank level. If the the PCM detects the primary side lower than the secondary side by a calibrated amount the DTC will set.
Page 274 DRIVEABILITY - NGC P1861-SIPHON LINE DISCONNECTED — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Fuel Pump Module harness connector. Measure the resistance between ground and the Fuel Level Signal circuit at the Fuel Pump Module harness connector. Is the resistance below 100 ohms? Yes →...
Page 275: P2008-Short Runner Solenoid Circuit
DRIVEABILITY - NGC Symptom: P2008-SHORT RUNNER SOLENOID CIRCUIT When Monitored and Set Condition: P2008-SHORT RUNNER SOLENOID CIRCUIT When Monitored: The Engine running. ASD Relay is energized. Set Condition: The PCM senses the SRV is not at the desired state. One Trip Fault. POSSIBLE CAUSES GOOD TRIP EQUAL TO ZERO SHORT RUNNER VALVE SOLENOID OPERATION...
Page 276 DRIVEABILITY - NGC P2008-SHORT RUNNER SOLENOID CIRCUIT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the SRV Solenoid harness connector. Turn the ignition on. Using a 12-volt test light connected to ground, check the ASD Relay Output circuit. With the DRBIII , actuate the SRV Solenoid.
Page 277: P2074-Manifold Pressure/Throttle Position Correlation - High
DRIVEABILITY - NGC Symptom: P2074-MANIFOLD PRESSURE/THROTTLE POSITION CORRELA- TION - HIGH FLOW/VACUUM LEAK When Monitored and Set Condition: P2074-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION - HIGH FLOW/VACUUM LEAK When Monitored: Engine Running, during all drive modes. Set Condition: The relationship between the MAP and Throttle exceeds a predetermined value for a given engine speed.
Page 278 DRIVEABILITY - NGC P2074-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION - HIGH FLOW/VACUUM LEAK — Continued TEST ACTION APPLICABILITY NOTE: Diagnose any TP Sensor or MAP Sensor component DTCs before continuing. NOTE: If the P0501 - No Vehicle Speed Signal is set along with this DTC, refer to the P0501 diagnostics before continuing.
Page 279 DRIVEABILITY - NGC P2074-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION - HIGH FLOW/VACUUM LEAK — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the TP Sensor harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 280 DRIVEABILITY - NGC P2074-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION - HIGH FLOW/VACUUM LEAK — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the TP Sensor harness connector. Disconnect the PCM harness connector. Measure the resistance between ground and the (K22) TP Signal circuit in the TP Sensor harness connector.
Page 281 DRIVEABILITY - NGC P2074-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION - HIGH FLOW/VACUUM LEAK — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the MAP Sensor harness connector. Disconnect the PCM harness connector. Measure the resistance between ground and the (K6) 5 Volt Supply circuit at the MAP Sensor harness connector.
Page 282 DRIVEABILITY - NGC P2074-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION - HIGH FLOW/VACUUM LEAK — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the MAP Sensor harness connector. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 283: P2096-Down Stream Fuel System 1/2 Lean
DRIVEABILITY - NGC Symptom List: P2096-DOWN STREAM FUEL SYSTEM 1/2 LEAN P2097-DOWN STREAM FUEL SYSTEM 1/2 RICH Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P2096-DOWN STREAM FUEL SYSTEM 1/2 LEAN. When Monitored and Set Condition: P2096-DOWN STREAM FUEL SYSTEM 1/2 LEAN When Monitored: With the engine running in closed loop mode, the ambient/battery...
Page 284 DRIVEABILITY - NGC P2096-DOWN STREAM FUEL SYSTEM 1/2 LEAN — Continued TEST ACTION APPLICABILITY NOTE: Check the vehicle repair history. If the O2 has been replace ensure that the O2 sensor was properly installed and meets OEM specification. NOTE: Check for contaminants that may have damaged the O2 Sensor: contaminated fuel, unapproved silicone, oil and coolant.
Page 285 DRIVEABILITY - NGC P2096-DOWN STREAM FUEL SYSTEM 1/2 LEAN — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the O2 Sensor harness connector. Ignition on, engine not running. With the DRBIII , monitor the O2 Sensor voltage. Is the voltage above 4.8 volts? Yes →...
Page 286: P2302-Ignition Coil #1 Secondary Circuit-Insufficient Ionization
DRIVEABILITY - NGC Symptom List: P2302-IGNITION COIL #1 SECONDARY CIRCUIT-INSUFFICIENT IONIZATION P2305-IGNITION COIL #2 SECONDARY CIRCUIT - INSUFFICIENT IONIZATION P2308-IGNITION COIL #3 SECONDARY CIRCUIT- INSUFFICIENT IONIZATION P2311-IGNITION COIL #4 SECONDARY CIRCUIT- INSUFFICIENT IONIZATION P2314-IGNITION COIL #5 SECONDARY CIRCUIT- INSUFFICIENT IONIZATION P2317-IGNITION COIL #6 SECONDARY CIRCUIT- INSUFFICIENT IONIZATION Test Note: All symptoms listed above are diagnosed using the same tests.
Page 287 DRIVEABILITY - NGC P2302-IGNITION COIL #1 SECONDARY CIRCUIT-INSUFFICIENT ION - IZATION — Continued P2314-IGNITION COIL #5 SECONDARY CIRCUIT- INSUFFICIENT IONIZATION When Monitored: Engine running. Set Condition: If PCM detects that the secondary ignition burn time is incorrect or not present an error is detected. One Trip Fault P2317-IGNITION COIL #6 SECONDARY CIRCUIT- INSUFFICIENT IONIZATION When Monitored: Engine running.
Page 288 DRIVEABILITY - NGC P2302-IGNITION COIL #1 SECONDARY CIRCUIT-INSUFFICIENT ION - IZATION — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Ignition Coil harness connector. Turn the ignition on. With the DRBIII , actuate the ASD Relay. Using a 12-volt test light connected to ground, probe the (A142) ASD Relay Output circuit in the Ignition Coil harness connector.
Page 289 DRIVEABILITY - NGC P2302-IGNITION COIL #1 SECONDARY CIRCUIT-INSUFFICIENT ION - IZATION — Continued TEST ACTION APPLICABILITY Turn the ignition off. Remove the Spark Plug. Inspect the Spark Plug for the following conditions. - Cracks - Carbon Tracking - Foreign Material - Gap size out of specifications - Loose or broke electrode NOTE: Lightly tap the bottom of the spark plug on a solid surface.
Page 290: P2503-Charging System Voltage Low
DRIVEABILITY - NGC Symptom: P2503-CHARGING SYSTEM VOLTAGE LOW When Monitored and Set Condition: P2503-CHARGING SYSTEM VOLTAGE LOW When Monitored: The engine running. The engine speed greater than 1157 RPM. Set Condition: The battery sensed voltage is 1 volt below the charging goal for 13.47 seconds.
Page 291 DRIVEABILITY - NGC P2503-CHARGING SYSTEM VOLTAGE LOW — Continued TEST ACTION APPLICABILITY WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING. Ignition on, engine not running.
Page 292 DRIVEABILITY - NGC P2503-CHARGING SYSTEM VOLTAGE LOW — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the Generator Field harness connector. Disconnect the PCM harness connector. Measure the voltage on the (K20) Gen Field Control circuit at the Generator Field harness connector.
Page 293: U0101-No Transmission Bus Message
DRIVEABILITY - NGC Symptom: U0101-NO TRANSMISSION BUS MESSAGE When Monitored and Set Condition: U0101-NO TRANSMISSION BUS MESSAGE When Monitored: Equipped with automatic transmission. Engine Running Battery voltage greater than 10 volts. Set Condition: No bus messages are received from the TCM for 20 seconds, two trips required.
Page 294 DRIVEABILITY - NGC U0101-NO TRANSMISSION BUS MESSAGE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Page 295: U0140-No Body Bus Messages
DRIVEABILITY - NGC Symptom: U0140-NO BODY BUS MESSAGES When Monitored and Set Condition: U0140-NO BODY BUS MESSAGES When Monitored: Engine running. Battery voltage greater than 10.0 volts. Set Condition: No BUS messages recieved from the BCM for 20 seconds. POSSIBLE CAUSES DTC RESET COMMUNICATE WITH BCM PCI BUS CIRCUIT OPEN...
Page 296 DRIVEABILITY - NGC U0140-NO BODY BUS MESSAGES — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the PCM harness connector Disconnect the BCM harness connector. NOTE: Inspect the PCI Bus terminal at both the PCM connectors and the BCM connectors. Check for corrosion, damage or terminal push out. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS.
Page 297: U0155-No Cluster Bus Message
DRIVEABILITY - NGC Symptom: U0155-NO CLUSTER BUS MESSAGE When Monitored and Set Condition: U0155-NO CLUSTER BUS MESSAGE When Monitored: Engine Running. Set Condition: No BUS messages received from the MIC (Instrument Cluster) for 20 seconds. POSSIBLE CAUSES DTC RESET COMMUNICATE WITH CLUSTER INSTRUMENT CLUSTER OPERATION TEST ACTION...
Page 298: U0168-No Skim Bus Messages
DRIVEABILITY - NGC Symptom: U0168-NO SKIM BUS MESSAGES When Monitored and Set Condition: U0168-NO SKIM BUS MESSAGES When Monitored: Ignition on or Engine Running. Set Condition: No BUS messages are received from the SKIM for 20 seconds. POSSIBLE CAUSES INTERMITTENT CONDITION PCI BUS CIRCUIT OPEN FROM PCM TO SKIM LOSS OF SKIM COMMUNICATION SKIM/PCM...
Page 299 DRIVEABILITY - NGC U0168-NO SKIM BUS MESSAGES — Continued TEST ACTION APPLICABILITY Turn the ignition off. Replace the Sentry Key Immobilizer Module in accordance with the Service Infor- mation. Turn the ignition on. Display and erase all PCM and SKIM DTCs. Perform 5 ignition key cycles leaving the ignition key on for 90 seconds per cycle.
Page 300: U110C-No Fuel Level Bus Message
DRIVEABILITY - NGC Symptom: U110C-NO FUEL LEVEL BUS MESSAGE When Monitored and Set Condition: U110C-NO FUEL LEVEL BUS MESSAGE When Monitored: Ignition on. Set Condition: No fuel level BUS messages received by the PCM for 20 seconds. POSSIBLE CAUSES DTC RESET COMMUNICATE WITH BCM FUEL LEVEL BUS MESSAGE PCI BUS CIRCUIT OPEN FROM PCM TO BCM...
Page 301 DRIVEABILITY - NGC U110C-NO FUEL LEVEL BUS MESSAGE — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the PCM harness connectors. Disconnect the BCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION.
Page 302: Checking Pcm Power And Ground Circuits
DRIVEABILITY - NGC Symptom: *CHECKING PCM POWER AND GROUND CIRCUITS POSSIBLE CAUSES (A14) PCM FUSED B+ CIRCUIT (A41) PCM FUSED IGNITION SWITCH OUTPUT CIRCUIT (Z12) PCM GROUND CIRCUITS TEST ACTION APPLICABILITY NOTE: The battery must be fully charged before continuing. Turn the ignition off.
Page 303: Checking The A/C Relay Output
DRIVEABILITY - NGC Symptom: *CHECKING THE A/C RELAY OUTPUT POSSIBLE CAUSES A/C CLUTCH RELAY OPERATION GROUND CIRCUIT OPEN A/C CLUTCH (A17) FUSED B+ CIRCUIT (C3) A/C CLUTCH OUTPUT CIRCUIT A/C CLUTCH RELAY TEST ACTION APPLICABILITY NOTE: Ensure that the refrigerant system is properly charged. Refer to the appropriate Service Information.
Page 304 DRIVEABILITY - NGC *CHECKING THE A/C RELAY OUTPUT — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the A/C Clutch Relay from the PDC. Disconnect the A/C Clutch harness connector. Measure the resistance of the (C3) A/C Clutch Relay Output circuit between the PDC and the A/C Clutch harness connector.
Page 305: Skreem
SKREEM Symptom List: ANTENNA FAILURE COP FAILURE EEPROM FAILURE RAM FAILURE ROM FAULT SERIAL LINK INTERNAL FAULT STACK OVERFLOW FAILURE Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be ANTENNA FAILURE. When Monitored and Set Condition: ANTENNA FAILURE When Monitored: Every 250 milliseconds with the ignition on.
Page 306 SKREEM ANTENNA FAILURE — Continued POSSIBLE CAUSES SKREEM INTERNAL DTC FAILURE TEST ACTION APPLICABILITY Note: This trouble code indicates an internal SKIM fault. With the DRBIII , read and record the SKIM DTCs and then erase the SKIM DTCs Perform 5 ignition key cycles, leaving the ignition key on for a minimum of 90 seconds per cycle.
Page 307: Pcm Status Failure
SKREEM Symptom List: PCM STATUS FAILURE SERIAL LINK EXTERNAL FAULT Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be PCM STATUS FAILURE. When Monitored and Set Condition: PCM STATUS FAILURE When Monitored: With the ignition on.
Page 308 SKREEM PCM STATUS FAILURE — Continued TEST ACTION APPLICABILITY Turn the ignition off. NOTE: Visually inspect the related wiring harness and CCD/PCI Bus (whichever applicable) circuits. Look for any chafed, pierced, pinched, or partially broken wires. NOTE: Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
Page 309: Rolling Code Failure
SKREEM Symptom List: ROLLING CODE FAILURE VIN MISMATCH Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be ROLLING CODE FAILURE. When Monitored and Set Condition: ROLLING CODE FAILURE When Monitored: At ignition on, after ignition on during any rolling code handshake that occurs with the PCM due to a SKIM or PCM reset.
Page 310 SKREEM ROLLING CODE FAILURE — Continued TEST ACTION APPLICABILITY Turn the ignition on. With the DRBIII , select Engine system from the main menu. Display and record the Vehicle Identification Number. NOTE: Ensure that a VIN has been programmed into the PCM. If a VIN is not displayed, attempt to program the PCM with the correct vehicle VIN before continuing.
Page 311: Transponder Communication Failure
SKREEM Symptom List: TRANSPONDER COMMUNICATION FAILURE TRANSPONDER ID MISMATCH TRANSPONDER RESPONSE MISMATCH Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be TRANSPONDER COMMUNICA- TION FAILURE. When Monitored and Set Condition: TRANSPONDER COMMUNICATION FAILURE When Monitored: At ignition on and during Key Programming Mode.
Page 312 SKREEM TRANSPONDER COMMUNICATION FAILURE — Continued TEST ACTION APPLICABILITY With the DRBIII , read and record the SKREEM DTCs. With the DRBIII , erase the SKREEM DTCs. NOTE: Perform the following test several times to ensure the DTC is current. Turn the ignition off.
Page 313 SKREEM TRANSPONDER COMMUNICATION FAILURE — Continued TEST ACTION APPLICABILITY If there are no possible causes remaining, view repair. Repair Replace and program the Sentry Key Remote Entry Module in accordance with the Service Information. Perform SKREEM VERIFICATION TEST - VER 1A. Turn the ignition off.
Page 314: Unprogrammed Skreem
SKREEM Symptom: UNPROGRAMMED SKREEM When Monitored and Set Condition: UNPROGRAMMED SKREEM When Monitored: With the ignition on. Set Condition: The Sentry Key Remote Entry Module has not been programmed. POSSIBLE CAUSES VERIFY ACTIVE DTC TEST ACTION APPLICABILITY Turn the ignition on. With the DRBIII , attempt program the SKREEM in accordance with the Service Information.
Page 315: Checking Fuel Delivery
STARTING Symptom: *CHECKING FUEL DELIVERY POSSIBLE CAUSES FUEL PUMP RELAY FUEL PRESSURE OUT OF SPECS RESTRICTED FUEL SUPPLY LINE FUEL PUMP INLET STRAINER PLUGGED FUEL PUMP MODULE FUEL DELIVERY SYSTEM OPERATION FUEL PUMP RELAY FUSED B+ CIRCUIT (A141) FUEL PUMP RELAY OUTPUT CIRCUIT OPEN (Z1) FUEL PUMP GROUND CIRCUIT OPEN/HIGH RESISTANCE FUEL PUMP MODULE TEST...
Page 316 STARTING *CHECKING FUEL DELIVERY — Continued TEST ACTION APPLICABILITY Turn the ignition off. WARNING: The fuel system is under a constant pressure even with the engine off. Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released. Raise vehicle on hoist, and disconnect the fuel pressure line at the fuel pump module.
Page 317 STARTING *CHECKING FUEL DELIVERY — Continued TEST ACTION APPLICABILITY If there are no possible causes remaining, view repair. Repair Replace the Fuel Pump Module. Perform POWERTRAIN VERIFICATION TEST VER - 1. Turn the ignition off. Remove the Fuel Pump Relay from the PDC. With a 12 volt test light connected to ground, probe the Fuel Pump Relay Fused B+ circuit at the PDC.
Page 318: Checking Fuel Pressure Leak Down
STARTING Symptom: *CHECKING FUEL PRESSURE LEAK DOWN POSSIBLE CAUSES CHECKING FUEL PRESSURE FUEL PUMP MODULE CHECKING FUEL LEAK DOWN TEST ACTION APPLICABILITY Warning: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released.
Page 319: Checking Hard Start (Fuel Delivery System)
STARTING Symptom: *CHECKING HARD START (FUEL DELIVERY SYSTEM) POSSIBLE CAUSES RESTRICTED FUEL SUPPLY LINE FUEL PUMP MODULE FUEL PUMP INLET STRAINER PLUGGED FUEL INJECTOR(S) FUEL PUMP MODULE FUEL CONTAMINATION TEST ACTION APPLICABILITY Turn the ignition off. WARNING: The fuel system is under a constant pressure even with the engine off.
Page 320 STARTING *CHECKING HARD START (FUEL DELIVERY SYSTEM) — Continued TEST ACTION APPLICABILITY Turn the ignition off. WARNING: The fuel system is under a constant pressure even with the engine off. Before testing or servicing any fuel system hose,fitting or line, the fuel system pressure must be released.
Page 321: Engine Cranks Does Not Start
STARTING Symptom: *ENGINE CRANKS DOES NOT START POSSIBLE CAUSES FUEL PUMP RELAY NO START PRE-TEST OTHER POSSIBLE CAUSES FOR NO START POWERTRAIN FUSES OPEN FUEL PRESSURE OUT OF SPECS RESTRICTED FUEL SUPPLY LINE VISUAL/PHYSICAL INSPECT OF THE FUEL LINE AND SIPHON LINE FUEL PUMP/FUEL REGULATOR FUEL PUMP RELAY FUSED B+ CIRCUIT FUEL PUMP RELAY OUTPUT CIRCUIT OPEN...
Page 322 STARTING *ENGINE CRANKS DOES NOT START — Continued TEST ACTION APPLICABILITY Check for any open fuses in the PDC or Fuse Block that may be related to the No Start condition. Are any of the fuses open? Yes → Using the wiring diagram/schematic as a guide, inspect the wiring and connectors, repair as necessary.
Page 323 STARTING *ENGINE CRANKS DOES NOT START — Continued TEST ACTION APPLICABILITY Turn the ignition off. WARNING: The fuel system is under a constant pressure even with the engine off. Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released.
Page 324 STARTING *ENGINE CRANKS DOES NOT START — Continued TEST ACTION APPLICABILITY The following items need to be checked as a possible cause for a no start condition. Refer to any Technical Service Bulletins that may apply to the symptom. The spark plugs must be free from fuel, oil, coolant and/or any foreign material or deposits.
Page 325 STARTING *ENGINE CRANKS DOES NOT START — Continued TEST ACTION APPLICABILITY Turn the ignition off. Remove the Fuel Pump Relay from the PDC. Disconnect the Fuel Pump Module harness connector. NOTE: Check connectors - It is critical that the connector is free from any signs of corrosion or deformities Measure the resistance of the Fuel Pump Relay Output circuit from the relay connector to the fuel pump module connector.
Page 326: No Crank Condition
STARTING Symptom: *NO CRANK CONDITION POSSIBLE CAUSES REPAIR MECHANICAL CONDITION TRANSMISSION RANGE SENSOR BATTERY CIRCUIT RESISTANCE TOO HIGH IGNITION SWITCH OUTPUT CIRCUIT OPEN STARTER RELAY CONTROL CIRCUIT OPEN STARTER RELAY OUTPUT CIRCUIT OPEN FUSED B(+) CIRCUIT OPEN FUSED IGNITION SWITCH OUTPUT (START) CIRCUIT OPEN STARTER STARTER MOTOR RELAY STARTER RELAY...
Page 327 STARTING *NO CRANK CONDITION — Continued TEST ACTION APPLICABILITY Turn the ignition off. Disconnect the PCM harness connector. CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI- NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Page 328 STARTING *NO CRANK CONDITION — Continued TEST ACTION APPLICABILITY Turn the ignition off. Install a substitute a Relay in the of the Starter Motor Relay. Attempt to start the vehicle. Does the engine crank over? Yes → Replace the Starter Motor Relay. Perform POWERTRAIN VERIFICATION TEST VER - 1.
Page 329: No Response From Pcm With A No Start Condition
STARTING Symptom: *NO RESPONSE FROM PCM WITH A NO START CONDITION POSSIBLE CAUSES PCM FUSED B+ CIRCUIT PCM FUSED IGNITION SWITCH OUTPUT CIRCUIT PCM GROUND CIRCUITS TEST ACTION APPLICABILITY NOTE: The DRBIII and cable must be operating properly for the results of this test to be valid.
Page 330: Start And Stall Condition
STARTING Symptom: *START AND STALL CONDITION POSSIBLE CAUSES CHECKING DTCS CHECKING SKIM DTCS FUEL PRESSURE OUT OF SPECS TP SENSOR SWEEP TP SENSOR VOLTAGE GREATER THAN 0.92 VOLTS WITH THROTTLE CLOSED ECT SENSOR OPERATION OTHER POSSIBLE CAUSES FOR START & STALL RESTRICTED FUEL SUPPLY LINE FUEL PUMP INLET STRAINER PLUGGED FUEL PUMP MODULE...
Page 331 STARTING *START AND STALL CONDITION — Continued TEST ACTION APPLICABILITY Turn the ignition off. WARNING: The fuel system is under a constant pressure even with the engine off. Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released. Install a fuel pressure gauge.
Page 332 STARTING *START AND STALL CONDITION — Continued TEST ACTION APPLICABILITY Turn the ignition on. With the DRBIII , read TPS VOLTS. While monitoring the DRBIII , slowly open and close the Throttle. Is the voltage change smooth? Yes → Go To 7 →...
Page 333: Verification Tests
VERIFICATION TESTS Verification Tests 40/41TE (NGC) TRANSMISSION VERIFICATION TEST - VER 1 APPLICABILITY 1. NOTE: After completion of the Transmission Verification Test, the Powertrain Verification Test must be performed. Refer to the Powertrain Category. 2. Connect the DRBIII to the Data Link Connector (DLC). 3.
Page 334 VERIFICATION TESTS Verification Tests — Continued BODY VERIFICATION TEST - VER 1 APPLICABILITY 1. Disconnect all jumper wires and reconnect all previously disconnected components and connectors. 2. NOTE: If the SKREEM or PCM was replaced, refer to the service information for proper programming procedures.
Page 335 VERIFICATION TESTS Verification Tests — Continued POWERTRAIN VERIFICATION TEST VER - 2 - NGC APPLICABILITY 1. NOTE: After completing the Powertrain Verification Test the Transmission Verifi- cation Test must be performed. 2. NOTE: If the PCM has been replaced and the correct VIN and mileage have not been programmed, a DTC will be set in the ABS Module, Airbag Module and the SKIM.
Page 336 VERIFICATION TESTS Verification Tests — Continued POWERTRAIN VERIFICATION TEST VER - 4 - NGC APPLICABILITY 1. NOTE: After completing the Powertrain Verification Test the Transmission Verifi- cation Test must be performed. 2. NOTE: If the PCM has been replaced and the correct VIN and mileage have not been programmed, a DTC will be set in the ABS Module, Airbag Module and the SKIM.
Page 337 VERIFICATION TESTS Verification Tests — Continued POWERTRAIN VERIFICATION TEST VER - 5 - NGC APPLICABILITY 1. NOTE: After completing the Powertrain Verification Test the Transmission Verifi- cation Test must be performed. 2. NOTE: If the PCM has been replaced and the correct VIN and mileage have not been programmed, a DTC will be set in the ABS Module, Airbag Module and the SKIM.
Page 338 1. Reconnect all previously disconnected components and connectors. 2. Obtain the vehicle’s unique Personal Identification Number (PIN) assigned to it’s original SKIM. This number can be obtained from the vehicle’s invoice or Chrysler’s Customer Center (1-800-992-1997). 3. NOTE: When entering the PIN, care should be taken because the SKREEM will only allow 3 consecutive attempts to enter the correct PIN.
Page 339: 8.0 Component Locations
COMPONENT LOCATIONS 8.0 COMPONENT LOCATIONS 8.1 CONTROL MODULES 8.2 CONTROL AND SOLENOIDS...
Page 340 COMPONENT LOCATIONS 8.2 CONTROL AND SOLENOIDS (Continued) TYPICAL VIEW...
Page 341: 8.3 Sensor
COMPONENT LOCATIONS 8.3 SENSOR...
Page 342: 8.4 Fuel System And Evap System
COMPONENT LOCATIONS 8.4 FUEL SYSTEM AND EVAP SYSTEM 8.5 SWITCHES...
Page 343: 9.0 Connector Pinouts
CONNECTOR PINOUTS 9.0 CONNECTOR PINOUTS A/C COMPRESSOR CLUTCH - LT. GRAY 2 WAY CIRCUIT FUNCTION C3 18DB/YL A/C COMPRESSOR CLUTCH RELAY OUTPUT Z153 18BK/GY GROUND A/C PRESSURE TRANSDUCER - GRAY 4 WAY CIRCUIT FUNCTION K900 20DB/DG SENSOR GROUND F855 20PK/YL 5 VOLT SUPPLY C18 20LB/BR A/C PRESSURE TRANSDUCER SIGNAL...
Page 344: Camshaft Position Sensor - Black 3 Way
CONNECTOR PINOUTS CAMSHAFT POSITION SENSOR - BLACK 3 WAY CIRCUIT FUNCTION F855 20PK/YL 5 VOLT SUPPLY K900 20DB/DG SENSOR GROUND K44 20DB/GY CMP SIGNAL COIL ON PLUG NO. 1 - LT. GRAY 2 WAY CIRCUIT FUNCTION K342 16BR/WT AUTOMATIC SHUT DOWN RELAY OUTPUT K19 16DB/DG COIL CONTROL NO.
Page 345: Coil On Plug No. 4 - Lt. Gray 2 Way
CONNECTOR PINOUTS COIL ON PLUG NO. 4 - LT. GRAY 2 WAY CIRCUIT FUNCTION K342 16BR/WT AUTOMATIC SHUT DOWN RELAY OUTPUT K15 16DB COIL CONTROL NO. 4 COIL ON PLUG NO. 5 - LT. GRAY 2 WAY CIRCUIT FUNCTION K342 16BR/WT AUTOMATIC SHUT DOWN RELAY OUTPUT K16 16DB/YL COIL CONTROL NO.
Page 346: Data Link Connector - Black 16 Way
CONNECTOR PINOUTS DATA LINK CONNECTOR - BLACK 16 WAY CIRCUIT FUNCTION D25 20WT/VT PCI BUS Z11 18BK/LG GROUND Z111 18BK/WT GROUND D21 20WT/GY SCI TRANSMIT (PCM) D123 20WT/BR FLASH PROGRAM ENABLE D24 20WT/YL FLASH ABS D20 20WT/LG SCI RECEIVE (PCM) D15 20BR/WT SCI TRANSMIT (TCM) A105 20DB/RD...
Page 347: Evap/Purge Solenoid - Black 2 Way
CONNECTOR PINOUTS EVAP/PURGE SOLENOID - BLACK 2 WAY CIRCUIT FUNCTION K52 20DB/WT EVAP PURGE CONTROL K70 20DB/BR EVAP PURGE RETURN FUEL INJECTOR NO. 1 - BLACK 2 WAY CIRCUIT FUNCTION K342 16BR/WT AUTOMATIC SHUT DOWN RELAY OUTPUT K11 16BR/YL INJECTOR CONTROL NO. 1 FUEL INJECTOR NO.
Page 348: Fuel Injector No. 3 - Black 2 Way
CONNECTOR PINOUTS FUEL INJECTOR NO. 3 - BLACK 2 WAY CIRCUIT FUNCTION K342 16BR/WT AUTOMATIC SHUT DOWN RELAY OUTPUT K13 16BR/LB INJECTOR CONTROL NO. 3 FUEL INJECTOR NO. 4 - BLACK 2 WAY CIRCUIT FUNCTION K342 16BR/WT AUTOMATIC SHUT DOWN RELAY OUTPUT K14 16BR/TN INJECTOR CONTROL NO.
Page 349: Fuel Injector No. 6 - Black 2 Way
CONNECTOR PINOUTS FUEL INJECTOR NO. 6 - BLACK 2 WAY CIRCUIT FUNCTION K342 16BR/WT AUTOMATIC SHUT DOWN RELAY OUTPUT K58 16BR/VT INJECTOR CONTROL NO. 6 FUEL PUMP MODULE - BLACK 6 WAY CIRCUIT FUNCTION N1 16DB/OR FUEL PUMP RELAY OUTPUT N4 20DB/YL FUEL LEVEL SENSOR SIGNAL NO.
Page 350 CONNECTOR PINOUTS...
Page 351: Fuses (Ipm)
CONNECTOR PINOUTS FUSES (IPM) FUSE AMPS FUSED CIRCUIT FUNCTION A107 12TN/RD FUSED B(+) INTERNAL FUSED B(+) (I.O.D.) A101 12VT/RD FUSED B(+) INTERNAL FUSED B(+) INTERNAL FUSED B(+) INTERNAL FUSED B(+) A110 12DG/RD FUSED B(+) A130 12VT/RD (POWER SUNROOF) FUSED B(+) A701 14BR/RD (EARLY BUILD) FUSED B(+) A100 16RD/VT (TRAILER TOW LATE BUILD)
Page 352: Fuel Pump Relay
CONNECTOR PINOUTS FUEL PUMP RELAY CIRCUIT FUNCTION INTERNAL FUSED B(+) INTERNAL FUSED IGNITION SWITCH OUTPUT (RUN-START) K31 20BR FUEL PUMP RELAY CONTROL N1 16DB/OR FUEL PUMP RELAY OUTPUT MANIFOLD TUNING VALVE RELAY CIRCUIT FUNCTION INTERNAL FUSED B(+) INTERNAL GROUND K36 20DB/YL MTV CONTROL K136 18BR MANIFOLD TUNING VALVE RELAY OUTPUT...
Page 353: Integrated Power Module C1 - Black 15 Way
CONNECTOR PINOUTS INTEGRATED POWER MODULE C1 - BLACK 15 WAY CIRCUIT FUNCTION A111 12DG/RD FUSED B(+) D25 20WT/VT PCI BUS A109 18OR/RD FUSED B(+) F500 18DG/PK FUSED RUN RELAY OUTPUT T750 12YL/GY STARTER MOTOR RELAY OUTPUT Z127 12BK/DG (ASSY. GROUND PLANT EVAC &...
Page 354: Integrated Power Module C4 - Green 16 Way
CONNECTOR PINOUTS INTEGRATED POWER MODULE C4 - GREEN 16 WAY CIRCUIT FUNCTION F100 20PK/VT ORC RUN DRIVER X3 20DG/VT HORN SWITCH SENSE W7 20BR/GY FRONT WIPER PARK SWITCH SENSE T751 20YL IGNITION SWITCH OUTPUT (START) F306 16DB/PK FUSED ACCESSORY RELAY OUTPUT F307 16LB/PK FUSED ACCESSORY RELAY OUTPUT A214 18RD/LB...
Page 355: Integrated Power Module C6 - Gray 12 Way
CONNECTOR PINOUTS INTEGRATED POWER MODULE C6 - GRAY 12 WAY CIRCUIT FUNCTION F202 20PK/GY FUSED IGNITION SWITCH OUTPUT (RUN-START) D25 20WT/VT PCI BUS C13 20LB/OR A/C CLUTCH RELAY CONTROL K51 18BR/GY AUTOMATIC SHUT DOWN RELAY CONTROL F1 20PK/WT IGNITION UNLOCK-RUN-START K36 20DB/YL MTV CONTROL INTEGRATED POWER MODULE C7 - GRAY 10 WAY...
Page 356: Integrated Power Module C9 - Blue 26 Way
CONNECTOR PINOUTS INTEGRATED POWER MODULE C9 - BLUE 26 WAY CIRCUIT FUNCTION A115 12YL/RD (POWER FUSED B(+) LIFTGATE) A106 20LB/RD FUSED B(+) A108 18LG/RD FUSED B(+) D123 20WT/BR FLASH PROGRAM ENABLE L71 20WT/GY LEFT TAIL LAMP DRIVER C7 12DB FUSED FRONT BLOWER MOTOR RELAY OUTPUT A701 18BR/RD (LATE FUSED B(+) BUILD)
Page 357: Manifold Tuning Valve Solenoid - Dk. Gray 2 Way
CONNECTOR PINOUTS MANIFOLD TUNING VALVE SOLENOID - DK. GRAY 2 WAY CIRCUIT FUNCTION Z110 20BK/LG GROUND K136 18BR MANIFOLD TUNING VALVE RELAY OUTPUT NATURAL VACUUM LEAK DETECTION ASSEMBLY - BLACK 3 WAY CIRCUIT FUNCTION Z166 18BK/WT GROUND K107 20VT/WT NVLD SWITCH SIGNAL K106 20VT/LB NVLD SOL CONTROL OXYGEN SENSOR-1/1 UPSTREAM - BLACK 4 WAY...
Page 358: Powertrain Control Module C1 - Black/Black 38 Way
CONNECTOR PINOUTS POWERTRAIN CONTROL MODULE C1 - BLACK/BLACK 38 WAY CIRCUIT FUNCTION Z130 16BK/BR GROUND F202 20PK/GY FUSED IGNITION SWITCH OUTPUT (RUN-START) F1 20PK/WT IGNITION UNLOCK-RUN-START K236 16DB/LG SRV SOL CONTROL Z131 16BK/DG GROUND G6 16VT/GY OIL PRESSURE SIGNAL G31 20OR/VT AAT SIGNAL D20 20WT/LG SCI RECEIVE (PCM)
Page 359: Powertrain Control Module C2 - Black/Orange 38 Way
CONNECTOR PINOUTS POWERTRAIN CONTROL MODULE C2 - BLACK/ORANGE 38 WAY CIRCUIT FUNCTION K10 16DB/OR COIL CONTROL NO. 6 K16 16DB/YL COIL CONTROL NO. 5 K15 16DB COIL CONTROL NO. 4 K58 16BR/VT INJECTOR CONTROL NO. 6 K38 16BR/OR INJECTOR CONTROL NO. 5 K18 16DB/OR COIL CONTROL NO.
Page 360: Powertrain Control Module C3 - Black/White 38 Way
CONNECTOR PINOUTS POWERTRAIN CONTROL MODULE C3 - BLACK/WHITE 38 WAY CIRCUIT FUNCTION K51 18BR/GY AUTOMATIC SHUT DOWN RELAY CONTROL V35 20VT/OR S/C VENT CONTROL K173 20BR/VT RAD FAN RELAY CONTROL V32 20VT/YL S/C SUPPLY K106 20VT/LB NVLD SOL CONTROL K299 18BR/OR O2 1/2 HEATER CONTROL C13 20LB/OR A/C CLUTCH RELAY CONTROL...
Page 361: Powertrain Control Module C4 - Black/Green 38 Way
CONNECTOR PINOUTS POWERTRAIN CONTROL MODULE C4 - BLACK/GREEN 38 WAY CIRCUIT FUNCTION T60 18YL/GY OVERDRIVE SOLENOID CONTROL T59 18YL/LB UNDERDRIVE SOLENOID CONTROL T19 18DB/YL 2-4 SOLENOID CONTROL T20 18WT/DG LOW/REVERSE SOLENOID CONTROL Z133 16BK/LG GROUND Z133 16BK/LG GROUND T1 18LB/DG TRS T1 SENSE T3 18DG/DB TRS T3 SENSE...
Page 362: Radiator Fan Motor No. 2 - Black 2 Way
CONNECTOR PINOUTS RADIATOR FAN MOTOR NO. 2 - BLACK 2 WAY CIRCUIT FUNCTION N23 12DB/DG RADIATOR FAN RELAY OUTPUT Z223 12BK/DG GROUND RADIATOR FAN RELAY - BLACK 4 WAY CIRCUIT FUNCTION A112 12OR/RD FUSED B(+) N23 12DB/DG RADIATOR FAN RELAY OUTPUT Z723 18BK/DG GROUND K173 18BR/VT...
Page 363: Speed Control Servo - Black 4 Way
CONNECTOR PINOUTS SPEED CONTROL SERVO - BLACK 4 WAY CIRCUIT FUNCTION V36 20YL/VT S/C VACUUM CONTROL V35 20VT/OR S/C VENT CONTROL V30 20VT/WT SPEED CONTROL BRAKE SWITCH OUTPUT Z155 18BK/LG GROUND SPEED CONTROL SWITCH-LEFT - BLACK 3 WAY CIRCUIT FUNCTION Z23 20BK/VT SPEED CONTROL SWITCH GROUND V37 20VT...
Page 364 NOTES...
Page 365: 10.0 Schematic Diagrams
SCHEMATIC DIAGRAMS 10.0 SCHEMATIC DIAGRAMS 10.1 2004 CS 3.5L...
Page 366: 2004 Cs 3.5L
SCHEMATIC DIAGRAMS 10.2 2004 CS 3.5L...
Page 367: 10.3 2004 Cs 3.5L
SCHEMATIC DIAGRAMS 10.3 2004 CS 3.5L...
Page 368 NOTES...
Page 369: 11.0 Charts And Graphs
CHARTS AND GRAPHS 11.0 CHARTS AND GRAPHS...
Page 370 CHARTS AND GRAPHS...

Chrysler Pacifica CS 2004 Service Manual

1 0 Introduction

2 Identification of System

3 System Description and Functional Operation

4 Disclaimers, Safety, Warnings

5 Required Tools and Equipment

6 Glossary of Terms

7 Diagnostic Information and Procedures

Communication

Skreem

Verification Tests

8 0 Component Locations

9 0 Connector Pinouts

10 0 Schematic Diagrams

11 0 Charts and Graphs

Quick Links

TABLE OF CONTENTS

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Summary of Contents for Chrysler Pacifica CS 2004