Toyota 2004 CELICA Electric Troubleshooting Manual
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Toyota 2004 CELICA Electric Troubleshooting Manual

Toyota 2004 CELICA Electric Troubleshooting Manual

Zzt230, 231 series
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See also: Owner's Manual , Operating Manual
NOTICE
When handling supplemental restraint system components (removal,
installation or inspection, etc.), always follow the direction given in the repair
manuals listed above to prevent accidents and supplemental restraint
system malfunction.
FOREWORD
This wiring diagram manual has been prepared to provide
information on the electrical system of the 2004 CELICA.
Applicable models: ZZT230, 231 Series
For service specifications and repair procedures of the above
models other than those listed in this manual, refer to the
following manuals;
Manual Name
Y 2004 CELICA Repair Manual
Y 2004 TOYOTA New Car Features
All information in this manual is based on the latest product
information at the time of publication. However, specifications
and procedures are subject to change without notice.
Pub. No.
Volume 1
RM1066U1
Volume 2
RM1066U2
NCF257U

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  • Page 1 FOREWORD This wiring diagram manual has been prepared to provide information on the electrical system of the 2004 CELICA. Applicable models: ZZT230, 231 Series For service specifications and repair procedures of the above models other than those listed in this manual, refer to the following manuals;...
  • Page 2 CONNECTOR LIST This section is closely related to the system circuit. PART NUMBER OF Indicates the part number of the connectors used in this manual. CONNECTORS OVERALL ELECTRICAL Provides circuit diagrams showing the circuit connections. WIRING DIAGRAM 2004 CELICA (EWD538U)
  • Page 3 Wiring related to each system is indicated in each system circuit by arrows (from__, to__). When overall connections are required, see the Overall Electrical Wiring Diagram at the end of this manual. 2004 CELICA (EWD538U)
  • Page 4 GAUGE @@@@ PPPP @@@@ PPPP @@@@ PPPP @@@@ PPPP @@@@ PPPP @@@@ PPPP @@@@ PPPP REAR LIGHTS WARNING LIGHT [COMB. METER] STOP LIGHT SW TO ABS ECU LIGHT FAILURE SENSOR DELAY CIRCUIT (SHIELDED) HIGH MOUNTED STOP LIGHT 2004 CELICA (EWD538U)
  • Page 5 ”E” for the section is shown in square brackets [ Engine Compartment, ”I” for the Instrument Panel and Surrounding area, and ”B” for the Body and Surrounding area. [N] : Page No. 2004 CELICA (EWD538U)

  • Page 6: How To Use This Manual

    See Page Ground Points Location Under the Left Quarter Pillar Back Panel Center : SPLICE POINTS Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points Cowl Wire Luggage Room Wire 2004 CELICA (EWD538U)
  • Page 7 Example : Ground point ”BO” is described on page 50 of this manual and is installed on the back panel center. [V] : Indicates the reference page showing the position of the splice points on the vehicle. Example : Splice point ”I5” is on the Cowl Wire Harness and is described on page 44 of this manual. 2004 CELICA (EWD538U)
  • Page 8 RADIO AND PLAYER WOOFER AMPLIFIER COMBINATION METER HEATER RELAY AUTO ANTENNA COMBINATION METER MOTOR FUEL SENDER ∗ The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION. 2004 CELICA (EWD538U)

  • Page 9: Power Source

    TAIL RELAY INJECTION RELAY IGNITION SW 15A TAIL STARTER RELAY 20A DEFOG 15A RAD CIG ∗ The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION. 2004 CELICA (EWD538U)

  • Page 10: Connector List

    The first letter of the code is taken from the first letter of part, and the numbers indicates its order in parts which start with the same letter. [D] : Connector Color Connectors not indicated are milky white in color. 2004 CELICA (EWD538U)
  • Page 11 Door Key Lock and Unlock SW RH 90980-1 1194 [A] : Part Code [B] : Part Name [C] : Part Number Toyota Part Number are indicated. Not all of the above part numbers of the connector are established for the supply. 2004 CELICA (EWD538U)

  • Page 12: Troubleshooting

    When contacting the two leads in reverse, there should be no Ohmmeter continuity. Diode (c) Use a volt/ohmmeter with high impedance (10 kΩ/V minimum) for troubleshooting of the electrical circuit. Digital Type Analog Type 2004 CELICA (EWD538U)
  • Page 13 To pull apart the connectors, pull on the connector itself, not the wire harness. HINT : Check to see what kind of connector you are disconnecting before pulling apart. Pull Up Pull Up Press Down Press Down 2004 CELICA (EWD538U)
  • Page 14 ”Case 1” Raise the terminal retainer up to the temporary lock position. [Retainer at Full Lock Position] Terminal Stopper Retainer [Retainer at Temporary Lock Position] ”Case 2” Open the secondary locking device. Secondary Example: Locking Device (Case 2) 2004 CELICA (EWD538U)
  • Page 15 ”Case 2” Type which cannot be pulled as far as Example: Power Lock insert the tool straight into Terminal Retainer (Case 2) the access hole of terminal retainer as shown. Tool Tool Press Down Press Down [Male] [Female] 2004 CELICA (EWD538U)
  • Page 16 2. Insert the terminal until the locking lug locks firmly. 3. Insert the terminal with terminal retainer in the temporary lock position. (b) Push the secondary locking device or terminal retainer in to the full lock position. 5. CONNECT CONNECTOR 2004 CELICA (EWD538U)
  • Page 17 Vacuum Switching Valve Variable Valve Lift Variable Valve Timing VVTL Variable Valve Timing and Lift With Without ∗ The titles given inside the components are the names of the terminals (terminal codes) and are not treated as being abbreviations. 2004 CELICA (EWD538U)
  • Page 18 A power unit which converts overloads, thereby protecting the circuit. electrical energy into mechanical The numbers indicate the crosssection energy, especially rotary motion. surface area of the wires. (for High Current Fuse or Fusible Link) 2004 CELICA (EWD538U)
  • Page 19 SOLENOID crossed wires (2) with a An electromagnetic coil which forms black dot or octagonal ( a magnetic field when current flows, (2) SPLICED mark at the junction are to move a plunger, etc. spliced (joined) connections. 2004 CELICA (EWD538U)
  • Page 20 F RELAY LOCATIONS [Engine Compartment] [Instrument Panel] 2004 CELICA (EWD538U)
  • Page 21 [Body] 2004 CELICA (EWD538U)
  • Page 22 F RELAY LOCATIONS : Engine Room J/B Engine Compartment Left (See Page 20) 2004 CELICA (EWD538U)
  • Page 23 (Inner Circuit : See Page 28) 2004 CELICA (EWD538U)
  • Page 24 F RELAY LOCATIONS : Instrument Panel J/B Instrument Panel Brace RH (See Page 21) 2004 CELICA (EWD538U)
  • Page 25 (Inner Circuit : See Page 30) 2004 CELICA (EWD538U)
  • Page 26 F RELAY LOCATIONS : Engine Room R/B No.1 Engine Compartment Left (See Page 20) Engine Compartment Left (See Page 20) : Engine Room J/B No.1 2004 CELICA (EWD538U)
  • Page 27 : Engine Room R/B No.2 Engine Compartment Left (See Page 20) 2004 CELICA (EWD538U)
  • Page 28 F RELAY LOCATIONS [Engine Room J/B Inner Circuit] 2004 CELICA (EWD538U)
  • Page 29 2004 CELICA (EWD538U)
  • Page 30 F RELAY LOCATIONS [Instrument Panel J/B Inner Circuit] 2004 CELICA (EWD538U)
  • Page 31 2004 CELICA (EWD538U)
  • Page 32 E 4 Engine Control Module H 11 Headlight Beam Level Control Actuator LH E 5 Engine Control Module H12 Headlight Beam Level Control Actuator RH E 6 Engine Coolant Temp. Sensor H13 Headlight Control ECU LH H14 Headlight Control ECU RH 2004 CELICA (EWD538U)
  • Page 33 (Electronically Controlled Transmission) V 3 VSV (ACIS) M 1 Mass Air Flow Meter V 4 VSV (Canister Closed Valve) V 5 VSV (EVAP) N 1 Noise Filter (Ignition System) W 1 Washer Motor O 2 Oil Pressure SW 2004 CELICA (EWD538U)
  • Page 34 E 7 Oil Pressure SW (VVTL) H13 Headlight Control ECU LH E 8 Engine Control Module H14 Headlight Control ECU RH E 9 Engine Control Module E 10 Engine Control Module E 11 Engine Control Module E 12 Engine Control Module 2004 CELICA (EWD538U)
  • Page 35 V 4 VSV (Canister Closed Valve) N 1 Noise Filter (Ignition System) V 5 VSV (EVAP) V 8 VSV (Air Pump) O 1 O/D Direct Clutch Speed Sensor O 2 Oil Pressure SW W 1 Washer Motor 2004 CELICA (EWD538U)
  • Page 36 C16 Combination SW B 7 Body ECU C17 Cruise Control Clutch SW B 8 Buckle SW LH C18 Cruise Control ECU B 9 Buckle SW RH D 1 Data Link Connector 3 F 12 Front Fog Light Relay 2004 CELICA (EWD538U)
  • Page 37 S 7 Stereo Component Amplifier J 8 Junction Connector S 8 Stop Light SW J 9 Junction Connector J 10 Junction Connector T 2 Turn Signal Flasher Relay O 3 O/D Main SW U 1 Unlock Warning SW 2004 CELICA (EWD538U)
  • Page 38 D 7 Door Side Airbag Sensor LH L 1 License Plate Light LH D 8 Door Side Airbag Sensor RH L 2 License Plate Light RH L 3 Luggage Compartment Light L 4 Luggage Compartment Light SW 2004 CELICA (EWD538U)
  • Page 39 R 8 Rear Speaker LH R 9 Rear Speaker RH R10 Rear Window Defogger R 11 Rear Window Defogger R12 Rear Wiper Motor and Relay R13 Remote Control Mirror LH R14 Remote Control Mirror RH R15 Remote Control Mirror SW 2004 CELICA (EWD538U)
  • Page 40 G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points [1ZZ-FE] : Location of Splice Points 2004 CELICA (EWD538U)
  • Page 41 Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No 1) Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1) Engine No.4 Wire and Engine Wire (Under the Intake Manifold) 2004 CELICA (EWD538U)
  • Page 42 G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points [2ZZ-GE] : Location of Splice Points 2004 CELICA (EWD538U)
  • Page 43 6 7 8 9 10 11 12 13 Code Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1) Engine Room Main Wire and Engine Wire (Inside of Engine Room R/B No.1) 2004 CELICA (EWD538U)
  • Page 44 G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points 2004 CELICA (EWD538U)
  • Page 45 Roof Wire and Instrument Panel Wire (Left Kick Panel) Instrument Panel Wire and Instrument Panel No.2 Wire (Instrument Panel Reinforcement LH) Cowl No.2 Wire and Instrument Panel Wire (Instrument Panel Brace LH) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) 2004 CELICA (EWD538U)
  • Page 46 G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Splice Points 2004 CELICA (EWD538U)
  • Page 47 Engine Room No 2 Wire and Instrument Panel Wire (Right Kick Panel) Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel) Front Door RH Wire and Instrument Panel Wire (Right Kick Panel) Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH) 2004 CELICA (EWD538U)
  • Page 48 G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points : Location of Splice Points 2004 CELICA (EWD538U)
  • Page 49 Back Door No.1 Wire and Floor Wire (Quarter Panel LH) Back Door No 2 Wire and Back Door No 1 Wire (Back Door Upper Left) Back Door No.2 Wire and Back Door No.1 Wire (Back Door Upper Left) 2004 CELICA (EWD538U)
  • Page 50 MEMO 2004 CELICA (EWD538U)
  • Page 51 15A HEAD LH LWR 15A HEAD RH LWR HEAD RELAY 20A HEAD RH UPR W- B ST RELAY 40A MAIN L- W ( * 1 ) BATTERY W- L DRL NO. 2 DIMMER RELAY ( * 1 ) 2004 CELICA (EWD538U)
  • Page 52 IGNITION SW 5A ECU- IG 7. 5A TURN 10A HTR 25A WIPER 15A WASHER 15A RR WIPER B- W 15A CIG 7. 5A ECU- ACC 7. 5A ST 10A HEAD RH UPR W- L 10A HEAD LH UPR 2004 CELICA (EWD538U)
  • Page 53 : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code See Page Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) : GROUND POINTS Code See Page Ground Points Location Instrument Panel Brace RH 2004 CELICA (EWD538U)
  • Page 54 MEMO 2004 CELICA (EWD538U)
  • Page 55 STARTING AND IGNITION (1ZZ-FE) B- R B- O B- O B- O IGNITION SW RELAY 7. 5A MAIN 7. 5A FL MAIN 3. 0W B- R , S 2 BATTERY STARTER B- R JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 56 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) B- O 25 2C 30 2C 24 2C 13 2C 26 2C 12 2C RELAY W- B W- B W- B IGT1 IGT2 IGT3 IGT4 , E 5 ENGINE CONTROL MODULE 2004 CELICA (EWD538U)
  • Page 57 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) : GROUND POINTS Code See Page Ground Points Location 40 (1ZZ-FE) Front Left Fender 40 (1ZZ-FE) Cylinder Head Cover LH 40 (1ZZ-FE) Front Left Fender Cowl Side Panel LH 2004 CELICA (EWD538U)
  • Page 58 MEMO 2004 CELICA (EWD538U)
  • Page 59 STARTING AND IGNITION (2ZZ-GE) JUNCTION CONNECTOR B- R B- O B- O B- O IGNITION SW RELAY 7. 5A MAIN 7. 5A FL MAIN 3. 0W B- R , S 2 BATTERY STARTER B- R JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 60 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) B- O 25 2C 30 2C 24 2C 13 2C 26 2C 12 2C RELAY W- B W- B W- B IGT1 IGT2 IGT3 IGT4 , E11 ENGINE CONTROL MODULE 2004 CELICA (EWD538U)
  • Page 61 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) : GROUND POINTS Code See Page Ground Points Location 42 (2ZZ-GE) Front Left Fender 42 (2ZZ-GE) Cylinder Head Cover LH 42 (2ZZ-GE) Front Left Fender Cowl Side Panel LH 2004 CELICA (EWD538U)
  • Page 62 : SPLICE POINTS Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points 42 (2ZZ-GE) Engine Room Main Wire 2004 CELICA (EWD538U)
  • Page 63 FROM POWER SOURCE SYSTEM (SEE PAGE 52) 7. 5A WARNING ALT- S R- Y COMBINATION METER 120A (1ZZ- FE) ( 2ZZ- GE ) MPX1 MPX2 ( 1ZZ- FE ) (2ZZ- GE) FL MAIN 3. 0W BATTERY IC REGULATOR , G 2 GENERATOR 2004 CELICA (EWD538U)
  • Page 64 Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1) 42 (2ZZ-GE) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) : GROUND POINTS Code See Page Ground Points Location Instrument Panel Brace RH 2004 CELICA (EWD538U)
  • Page 65 B- W B- W B- W IGNITION SW B- W B- W 7. 5A MAIN 7. 5A RELAY NO. 1 NO. 2 C/OPN RELAY B- W FL MAIN FUEL 3. 0W PUMP G- R JUNCTION JUNCTION CONNECTOR CONNECTOR 2004 CELICA (EWD538U)
  • Page 66 B- W B- W B- W B- W B- W B- W B- W B- O FROM POWER SOURCE SYSTEM (SEE PAGE 52) RELAY R- B R- L R- W W- B L- B G- R G- R 2004 CELICA (EWD538U)
  • Page 67 B- Y B- Y B- Y IGNITION COIL R- B AND IGNITER NO. 4 R- L R- W W- B W- B W- B W- B W- B W- B L- B L- B G- R G- R 2004 CELICA (EWD538U)
  • Page 68 B- W B- W B- R W- B W- B VAPOR PRESSURE SENSOR ACMG LCKI PTNK , E 3 , E 4 , E 5 ENGINE CONTROL MODULE MREL MOPS OCV+ OCV- F/PS GSW2 L- B G- R 2004 CELICA (EWD538U)
  • Page 69 STOP OX1A OX1B G- W W- B G- W ( * 1 ) HT1A OX1A HT1B OX1B , E 3 , E 4 , E 5 ENGINE CONTROL MODULE IDLO KNK1 ( * 1 ) CRUISE CONTROL 2004 CELICA (EWD538U)
  • Page 70 , E 3 , E 4 , E 5 ENGINE CONTROL MODULE BODY ECU DATA LINK CONNECTOR 3 W- B W- B VEHICLE SPEED JUNCTION SENSOR CONNECTOR ( COMBINATION METER ) ( * 1 ) W- B JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 71 TERMINAL STA of the engine control module as a control signal. (12) Engine knock signal circuit Engine knocking is detected by knock sensor and the signal is input into TERMINAL KNK1 as a control signal. 2004 CELICA (EWD538U)
  • Page 72 When a malfunction has occurred in any system, if there is a possibility of engine trouble being caused by continued control based on the signals from that system, the fail-safe system either controls the system by using data (Standard values) recorded in the engine control module memory or else stops the engine. 2004 CELICA (EWD538U)
  • Page 73 33 (1ZZ-FE) 32 (1ZZ-FE) 33 (1ZZ-FE) 33 (1ZZ-FE) 32 (1ZZ-FE) 33 (1ZZ-FE) 32 (1ZZ-FE) 33 (1ZZ-FE) 32 (1ZZ-FE) 33 (1ZZ-FE) : RELAY BLOCKS Code See Page Relay Blocks (Relay Block Location) Engine Room R/B No.1 (Engine Compartment Left) 2004 CELICA (EWD538U)
  • Page 74 Cowl Side Panel LH Cowl Side Panel RH Luggage Room Left : SPLICE POINTS Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points 40 (1ZZ-FE) Engine Room Main Wire 40 (1ZZ-FE) Engine Wire 2004 CELICA (EWD538U)
  • Page 75 B- W B- W B- W IGNITION SW B- W B- W 7. 5A MAIN 7. 5A RELAY NO. 1 NO. 2 C/OPN RELAY B- W FL MAIN FUEL 3. 0W PUMP G- R JUNCTION JUNCTION CONNECTOR CONNECTOR 2004 CELICA (EWD538U)
  • Page 76 B- W B- W B- W B- W B- W B- W B- W W- L B- O FROM POWER SOURCE SYSTEM (SEE PAGE 52) RELAY L- O L- B L- R W- B G- R G- R 2004 CELICA (EWD538U)
  • Page 77 , E10 , E11 , E12 ENGINE CONTROL MODULE AIR PUMP AIRP # 40 # 30 # 10 RELAY GR- R AIR PUMP MOTOR L- O L- B L- R W- B W- B G- R G- R 2004 CELICA (EWD538U)
  • Page 78 , E10 , E11 E12 I ENGINE CONTROL MODULE IGT1 IGT2 IGT3 IGT4 MREL 10 F 21 I B- Y B- Y B- Y B- Y W- B W- B W- B W- B W- B G- R 2004 CELICA (EWD538U)
  • Page 79 MOTOR SENSOR VTA2 R- B 31 G GE01 VTA2 PTNK , E 9 , E10 , E11 , E12 ENGINE CONTROL MODULE OCVL+ OCVL- OCV+ OCV- F/PS EPA2 VPA2 VCP2 VCPA ME01 GSW2 ACCELERATOR PEDAL POSITION SENSOR 2004 CELICA (EWD538U)
  • Page 80 OX1B G- W G- W (* 3) ( * 3 ) 29 H HT1A OX1A HT1B OX1B , E 9 , E10 , E11 ENGINE CONTROL MODULE MOPS G22+ EKNK KNK1 (* 3) ( * 3 ) 2004 CELICA (EWD538U)
  • Page 81 ( * 3 ) TACH MPX1 MPX2 , E 9 , E10 , E11 , E12 ENGINE CONTROL MODULE WFSE 19 F WFSE DATA LINK CONNECTOR 3 (* 3) ( * 3 ) W- B JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 82 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) BR- W W- R R- B WARNING BK/UP LP LG- R G- O * 3 : SHIELDED MPX1 BODY ECU VEHICLE SPEED SENSOR (COMBINATION METER) 2004 CELICA (EWD538U)
  • Page 83 TERMINAL STA of the engine control module as a control signal. (12) Engine knock signal circuit Engine knocking is detected by knock sensor and the signal is input into TERMINAL KNK1 as a control signal. 2004 CELICA (EWD538U)
  • Page 84 When a malfunction has occurred in any system, if there is a possibility of engine trouble being caused by continued control based on the signals from that system, the fail-safe system either controls the system by using data (Standard values) recorded in the engine control module memory or else stops the engine. 2004 CELICA (EWD538U)
  • Page 85 35 (2ZZ-GE) 35 (2ZZ-GE) 35 (2ZZ-GE) 34 (2ZZ-GE) 35 (2ZZ-GE) 34 (2ZZ-GE) 34 (2ZZ-GE) 35 (2ZZ-GE) 35 (2ZZ-GE) 34 (2ZZ-GE) : RELAY BLOCKS Code See Page Relay Blocks (Relay Block Location) Engine Room R/B No.1 (Engine Compartment Left) 2004 CELICA (EWD538U)
  • Page 86 : SPLICE POINTS Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points 42 (2ZZ-GE) Engine Room Main Wire 42 (2ZZ-GE) Engine Wire 42 (2ZZ-GE) Engine Wire 42 (2ZZ-GE) Engine Room Main Wire 2004 CELICA (EWD538U)
  • Page 87 HEADLIGHT (w/ HID) R- L L- W W- L HEAD RH HEAD LH MAIN R- L R- B W- B W- B R- Y R- Y R- W ( * 2 ) W- R W- R W- B 2004 CELICA (EWD538U)
  • Page 88 20 IM , C13 COMBINATION METER TAIL HEAD (1ZZ- FE) (2ZZ- GE) MPX1 MPX2 HIGH FLASH ( 1ZZ- FE ) COMBINATION SW (2ZZ- GE) R- Y R- W ( * 2 ) W- R GENERATOR JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 89 Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH) 2004 CELICA (EWD538U)
  • Page 90 Cowl Side Panel RH : SPLICE POINTS Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points 40 (1ZZ-FE) Engine Room No.2 Wire Engine Room Main Wire Engine Room Main Wire 42 (2ZZ-GE) 2004 CELICA (EWD538U)
  • Page 91 HEAD RH HEAD LH MAIN 7. 5A HEAD LH HEAD RH HEAD LVL DRL NO. 1 R- B W- B R- Y R- Y R- W ( * 2 ) BATTERY W- R W- R W- B 2004 CELICA (EWD538U)
  • Page 92 20 IM , C13 COMBINATION METER TAIL HEAD (1ZZ- FE) (2ZZ- GE) MPX1 MPX2 HIGH FLASH ( 1ZZ- FE ) COMBINATION SW (2ZZ- GE) R- Y R- W ( * 2 ) W- R GENERATOR JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 93 Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH) 2004 CELICA (EWD538U)
  • Page 94 Cowl Side Panel RH Cowl Side Panel RH : SPLICE POINTS Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points 40 (1ZZ-FE) Engine Room Main Wire 42 (2ZZ-GE) Engine Room Main Wire 2004 CELICA (EWD538U)

  • Page 95: Headlight Beam Level Control

    FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 7. 5A HEAD LVL DRL NO. 1 JUNCTION CONNECTOR HEADLIGHT BEAM LEVEL CONTROL SW HEADLIGHT BEAM HEADLIGHT BEAM LEVEL CONTROL LEVEL CONTROL ACTUATOR LH ACTUATOR RH W- B W- B JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 96 Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel) : GROUND POINTS Code See Page Ground Points Location Cowl Side Panel LH : SPLICE POINTS Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points Instrument Panel Wire 2004 CELICA (EWD538U)

  • Page 97: Fog Light

    HEAD RH FR FOG JUNCTION CONNECTOR R- W TO COMBINATION METER FRONT FOG LIGHT RELAY JUNCTION CONNECTOR L- O COMBINATION SW FOG LIGHT SW DIMMER SW HIGH FLASH FRONT FRONT FOG LIGHT FOG LIGHT W- B JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 98 : GROUND POINTS Code See Page Ground Points Location 40 (1ZZ-FE) Front Right Fender Front Right Fender 42 (2ZZ-GE) 40 (1ZZ-FE) Front Left Fender Front Left Fender 42 (2ZZ-GE) Cowl Side Panel LH Cowl Side Panel RH 2004 CELICA (EWD538U)
  • Page 99 TAILLIGHT TAIL TAIL RELAY TRLY BODY ECU , J 5 JUNCTION CONNECTOR COMBINATION TAIL HEAD 120A FL MAIN 3. 0W BATTERY W- B JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 100 2004 CELICA (EWD538U)
  • Page 101 : SPLICE POINTS Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points 40 (1ZZ-FE) Engine Room No.2 Wire Engine Room Main Wire Engine Room Main Wire 42 (2ZZ-GE) Back Door No.2 Wire 2004 CELICA (EWD538U)
  • Page 102 MEMO 2004 CELICA (EWD538U)
  • Page 103 PANEL 2 RELAY TRLY BODY ECU (CANADA) ( USA ) ( CANADA ) COMBINATION TAIL HEAD ( USA ) ( CANADA ) 120A FL MAIN 3. 0W W- B BATTERY W- B ( CANADA ) JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 104 * 1 : SEPARATE TYPE AMPLIFIER * 2 : BUILT- IN TYPE AMPLIFIER JUNCTION CONNECTOR (CANADA) W- B W- B ( CANADA ) W- B JUNCTION CONNECTOR (CANADA) 2004 CELICA (EWD538U)
  • Page 105 Ground Points Location Cowl Side Panel LH Instrument Panel Brace RH Cowl Side Panel RH : SPLICE POINTS Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points Instrument Panel Wire 2004 CELICA (EWD538U)
  • Page 106 MEMO 2004 CELICA (EWD538U)

  • Page 107: Interior Light

    R- W ( 1ZZ- FE ) (2ZZ- GE) MPX1 MPX2 JUNCTION * 1 : W/ MOON ROOF CONNECTOR * 2 : W/O MOON ROOF , E 3 , E 8 ENGINE CONTROL MODULE JUNCTION JUNCTION CONNECTOR CONNECTOR 2004 CELICA (EWD538U)
  • Page 108 Back Door No.1 Wire and Floor Wire (Quarter Panel LH) Back Door No.2 Wire and Back Door No.1 Wire (Back Door Upper Left) : GROUND POINTS Code See Page Ground Points Location Cowl Side Panel LH Instrument Panel Brace RH Cowl Side Panel RH 2004 CELICA (EWD538U)

  • Page 109: Back-Up Light

    BACK-UP LIGHT FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) BK/UP LP R- B R- B (A/T) (M/T) R- B , J13 JUNCTION ( A/T ) CONNECTOR ( M/T ) REVERSE WARNING BUZZER LIGHT [COMB. METER] BUZZER 2004 CELICA (EWD538U)
  • Page 110 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH) : GROUND POINTS Code See Page Ground Points Location Cowl Side Panel RH Back Panel Center 2004 CELICA (EWD538U)
  • Page 111 STOP LIGHT FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) STOP STOP LIGHT , J13 JUNCTION CONNECTOR HIGH MOUNTED STOP LIGHT LH STOP LIGHT RH STOP LIGHT [REAR COMB. [REAR COMB. LIGHT LH] LIGHT RH] JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 112 : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code See Page Joining Wire Harness and Wire Harness (Connector Location) Back Door No.1 Wire and Floor Wire (Quarter Panel LH) : GROUND POINTS Code See Page Ground Points Location Luggage Room Left Back Panel Center 2004 CELICA (EWD538U)

  • Page 113: Turn Signal And Hazard Warning Light

    [COMB. SW] HAZARD SW G- W G- W JUNCTION TURN CONNECTOR SIGNAL FLASHER RELAY G- B W- B G- Y , J 5 JUNCTION CONNECTOR , C13 TURN SIGNAL INDICATOR LIGHT [COMB. METER] W- B JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 114 Ground Points Location 40 (1ZZ-FE) Front Right Fender Front Right Fender 42 (2ZZ-GE) 40 (1ZZ-FE) Front Left Fender Front Left Fender 42 (2ZZ-GE) Cowl Side Panel LH Instrument Panel Brace RH Cowl Side Panel RH Back Panel Center 2004 CELICA (EWD538U)

  • Page 115: Light Reminder Buzzer

    FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 7. 5A 120A 7. 5A BODY ECU- MPX- B DOOR ECU- IG TAIL RELAY TRLY DCTY , B 7 BODY ECU TAIL HEAD HIGH FLASH COMBINATION JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 116 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH) Engine Room Main Wire and Engine Room J/B (Engine Compartment Left) : GROUND POINTS Code See Page Ground Points Location Cowl Side Panel LH Instrument Panel Brace RH 2004 CELICA (EWD538U)
  • Page 117 MULTIPLEX COMMUNICATION SYSTEM (COMMUNICATION BUS) * 1 : 1ZZ- FE * 2 : 2ZZ- GE BODY ECU MPX1 , C13 COMBINATION METER MPX+ MPX- (*1) ( *2 ) MPX1 MPX2 , E 3 , E 8 ENGINE CONTROL MODULE 2004 CELICA (EWD538U)
  • Page 118 MULTIPLEX COMMUNICATION SYSTEM INCLUDES FOLLOWING SYSTEMS ∗ DOOR LOCK CONTROL ∗ ELECTRONIC TENSION REDUCER ∗ HEADLIGHT ∗ INTERIOR LIGHT ∗ KEY REMINDER ∗ LIGHT REMINDER BUZZER ∗ MOON ROOF ∗ POWER WINDOW ∗ SEAT BELT WARNING ∗ WIRELESS DOOR LOCK CONTROL 2004 CELICA (EWD538U)
  • Page 119 DOOR RH UPR ECU- IG ( * 1 ) RELAY L- W L- W R- L HEAD RELAY RDEF FL MAIN 3. 0W * 1 : W/ DAYTIME RUNNING LIGHT * 2 : W/O DAYTIME RUNNING LIGHT 2004 CELICA (EWD538U)
  • Page 120 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) , B 7 BODY ECU 7. 5A ECU- DEFB TRLY HRLY TAIL HEAD L- W HIGH FLASH R- L COMBINATION JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 121 DOOR LOCK MOTOR, DOOR LOCK DOOR LOCK DETECTION SW DETECTION SW AND DOOR KEY AND DOOR KEY LOCK AND LOCK AND UNLOCK SW LH UNLOCK SW RH JUNCTION CONNECTOR W- B W- B JUNCTION JUNCTION CONNECTOR CONNECTOR 2004 CELICA (EWD538U)
  • Page 122 , B 7 BODY ECU LSWP DCTY PCTY Y- B Y- B UNLOCK WARNING BACK DOOR LOCK MOTOR W- B W- B 2004 CELICA (EWD538U)
  • Page 123 , B 7 BODY ECU DBKL PBKL FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) TENS DOOR CONTROL RECEIVER BUCKLE SW BUCKLE SW TENSION REDUCER TENSION REDUCER SOLENOID LH SOLENOID RH W- B W- B JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 124 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 7. 5A DOME (*3) ( *4 ) LBE+ CENTER AIRBAG O/D MAIN FUEL SENDER SENSOR ASSEMBLY ( *3 ) (*4) LUGGAGE COMPARTMENT LIGHT SW W- B W- B 2004 CELICA (EWD538U)
  • Page 125 FROM POWER SOURCE SYSTEM (SEE PAGE 52) 7. 5A ECU- B WARNING MOON ROOF CONTROL RELAY AND MOTOR BUZZER (1ZZ- FE) (2ZZ- GE) MPX1 MPX2 POWER WINDOW , E 3 , E 8 MOTOR LH ENGINE CONTROL MODULE W- B W- B 2004 CELICA (EWD538U)
  • Page 126 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) , B 7 BODY ECU HORN POWER WINDOW MASTER SW L- B JUNCTION CONNECTOR POWER WINDOW MOTOR RH W- B 2004 CELICA (EWD538U)
  • Page 127 Cowl No.2 Wire and Instrument Panel J/B (Instrument Panel Brace RH) Engine Wire and Engine Room J/B (Engine Compartment Left) Engine Room Main Wire and Engine Room J/B (Engine Compartment Left) Engine Room Main Wire and Engine Room J/B (Engine Compartment Left) 2004 CELICA (EWD538U)
  • Page 128 Back Door No.2 Wire and Back Door No.1 Wire (Back Door Upper Left) : GROUND POINTS Code See Page Ground Points Location 40 (1ZZ-FE) Front Left Fender Front Left Fender 42 (2ZZ-GE) Cowl Side Panel LH Instrument Panel Brace RH Cowl Side Panel RH Luggage Room Left 2004 CELICA (EWD538U)
  • Page 129 WARNING SW W- L , B 7 BODY ECU DCTY PCTY LSWD ACTD ACT+ DOOR CONTROL RECEIVER DOOR LOCK MOTOR, DOOR LOCK DETECTION SW AND DOOR KEY LOCK AND UNLOCK SW LH JUNCTION CONNECTOR JUNCTION JUNCTION CONNECTOR CONNECTOR 2004 CELICA (EWD538U)
  • Page 130 2 IL 1 IO 1 IH2 5 IH2 6 IH2 2 IH2 10 IH2 W- B BACK DOOR DOOR LOCK MOTOR, LOCK MOTOR DOOR LOCK DETECTION SW AND DOOR KEY LOCK AND UNLOCK SW RH JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 131 2-1 : Closed with the ignition key in the cylinder D2 DOOR CONTROL RECEIVER 5-GROUND : Always approx. 12 volts 1-GROUND : Always continuity : PARTS LOCATION Code See Page Code See Page Code See Page 32 (1ZZ-FE) 32 (1ZZ-FE) 34 (2ZZ-GE) 2004 CELICA (EWD538U)
  • Page 132 Back Door No.2 Wire and Back Door No.1 Wire (Back Door Upper Left) : GROUND POINTS Code See Page Ground Points Location Cowl Side Panel LH Instrument Panel Brace RH Cowl Side Panel RH Luggage Room Left 2004 CELICA (EWD538U)
  • Page 133 DOOR ECU- IG UNLOCK WARNING SW W- L , B 7 BODY ECU DCTY PCTY LSWD ACTD ACT+ DOOR LOCK MOTOR, DOOR LOCK DETECTION SW AND DOOR KEY LOCK AND UNLOCK SW LH JUNCTION CONNECTOR JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 134 , E 8 ENGINE CONTROL MODULE MPX1 , B 7 BODY ECU ACT- LSWP W- B BACK DOOR LOCK MOTOR DOOR LOCK MOTOR, DOOR LOCK DETECTION SW AND DOOR KEY LOCK AND UNLOCK SW RH JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 135 2-4 : Closed with door lock cylinder locked with key 1-4 : Closed with door lock cylinder unlocked with key : PARTS LOCATION Code See Page Code See Page Code See Page 32 (1ZZ-FE) 32 (1ZZ-FE) 34 (2ZZ-GE) 2004 CELICA (EWD538U)
  • Page 136 Back Door No.1 Wire and Floor Wire (Quarter Panel LH) Back Door No.2 Wire and Back Door No.1 Wire (Back Door Upper Left) : GROUND POINTS Code See Page Ground Points Location Cowl Side Panel LH Instrument Panel Brace RH Cowl Side Panel RH 2004 CELICA (EWD538U)

  • Page 137: Power Window

    13 IE5 MPX1 , B 7 BODY ECU ( * 1 ) ( * 2 ) 18 E 29 E DCTY PCTY MPX1 MPX2 ENGINE CONTROL MODULE POWER WINDOW MASTER SW POWER WINDOW LOCK SW JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 138 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) * 1 : 1ZZ- FE * 2 : 2ZZ- GE FL P/W FR P/W POWER WINDOW MASTER SW POWER WINDOW POWER WINDOW MOTOR LH MOTOR RH 2004 CELICA (EWD538U)

  • Page 139: Power Window

    18-GROUND : Approx. 12 volts with the ignition SW at ON position and the master SW at DOWN or AUTO DOWN position P4 POWER WINDOW LOCK SW 7-10 : Open with the window lock SW at LOCK position : PARTS LOCATION Code See Page Code See Page Code See Page 32 (1ZZ-FE) 32 (1ZZ-FE) 34 (2ZZ-GE) 2004 CELICA (EWD538U)
  • Page 140 Floor Wire and Instrument Panel Wire (Instrument Panel Brace LH) Front Door RH Wire and Instrument Panel Wire (Right Kick Panel) : GROUND POINTS Code See Page Ground Points Location Cowl Side Panel LH Instrument Panel Brace RH 2004 CELICA (EWD538U)

  • Page 141: Moon Roof

    ECU- ACC S/ROOF ECU- IG , B 7 BODY ECU JUNCTION DCTY PCTY CONNECTOR MOON ROOF CONTROL RELAY AND MOTOR MOON ROOF CONTROL RELAY MOON ROOF MOTOR AND LIMIT SW MOON ROOF CONTROL OPEN CLOSE W- B 2004 CELICA (EWD538U)
  • Page 142 See Page Joining Wire Harness and Wire Harness (Connector Location) Roof Wire and Instrument Panel Wire (Left Kick Panel) : GROUND POINTS Code See Page Ground Points Location Instrument Panel Brace RH Cowl Side Panel RH Roof Left 2004 CELICA (EWD538U)

  • Page 143: Electric Tension Reducer

    , C13 COMBINATION METER MPX+ MPX- 12 A 18 B 4 IE5 13 IE5 ( 1ZZ- FE ) ( 2ZZ- GE ) 18 B 29 A MPX1 MPX2 , E 3 , E 8 ENGINE CONTROL MODULE 2004 CELICA (EWD538U)
  • Page 144 : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code See Page Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) : GROUND POINTS Code See Page Ground Points Location Instrument Panel Brace RH 2004 CELICA (EWD538U)
  • Page 145 ECU- IG GR(* 3) GR(* 3) GR ( * 4 ) GR ( * 4 ) Y- G R- L MPX1 , B 7 BODY ECU DCTY PCTY DBKL PBKL 21 B W- B W- B (* 3) 2004 CELICA (EWD538U)
  • Page 146 ( * 3 ) ( * 4 ) 12 A 18 B 4 IE5 13 IE5 ( * 1 ) ( * 2 ) 18 E 29 E MPX1 MPX2 W- B W- B (* 3) JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 147 Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) : GROUND POINTS Code See Page Ground Points Location Instrument Panel Brace RH Cowl Side Panel RH 2004 CELICA (EWD538U)
  • Page 148 D After work on the SRS is completed, perform the SRS warning light check. D If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section of the Repair Manual. 2004 CELICA (EWD538U)
  • Page 149 7. 5A FL MAIN 3. 0W ( * 3 ) ( * 2 ) F/PS BLTW SPIRAL CABLE BATTERY , E 9 BODY ECU ENGINE CONTROL MODULE AIRBAG SQUIB AIRBAG SQUIB (STEERING WHEEL (FRONT PASSENGER PAD) AIRBAG ASSEMBLY) 2004 CELICA (EWD538U)
  • Page 150 - SL - SR , C 7 , C 8 CENTER AIRBAG SENSOR ASSEMBLY DML+ DML- DMR+ DMR- VUPL SSL+ VUPR SSR+ DOOR SIDE DOOR SIDE SIDE AIRBAG SENSOR LH SIDE AIRBAG SENSOR RH AIRBAG SENSOR AIRBAG SENSOR 2004 CELICA (EWD538U)
  • Page 151 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel) Front Door RH Wire and Instrument Panel Wire (Right Kick Panel) : GROUND POINTS Code See Page Ground Points Location Instrument Panel Brace RH 2004 CELICA (EWD538U)
  • Page 152 MEMO 2004 CELICA (EWD538U)
  • Page 153 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) ABS NO. 1 ABS NO. 2 ABS- IG STOP DATA LINK CONNECTOR 3 1 IG GND1 GND2 SKID CONTROL ECU WITH ACTUATOR PARKING BRAKE SW 2004 CELICA (EWD538U)
  • Page 154 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) WARNING , C13 ABS SPEED SENSOR ABS SPEED SENSOR FRONT LH FRONT RH COMBINATION METER SKID CONTROL ECU WITH ACTUATOR ABS SPEED SENSOR ABS SPEED SENSOR REAR LH REAR RH 2004 CELICA (EWD538U)
  • Page 155 Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel) Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH) : GROUND POINTS Code See Page Ground Points Location 40 (1ZZ-FE) Front Left Fender Front Left Fender 42 (2ZZ-GE) Instrument Panel Brace RH 2004 CELICA (EWD538U)
  • Page 156 : SPLICE POINTS Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points 40 (1ZZ-FE) Engine Room Main Wire 42 (2ZZ-GE) Engine Room Main Wire 2004 CELICA (EWD538U)
  • Page 157 CLUTCH R- L ( A/T ) L- W JUNCTION (A/T) CONNECTOR W- R CRUISE CONTROL ECU CRUISE 10 IE5 1 IE5 RES/ACC SET/COAST 6 EA2 4 EA2 CANSEL W- B VEHICLE SPEED SENSOR ( COMBINATION METER ) 2004 CELICA (EWD538U)
  • Page 158 B- O MODULE IDLO JUNCTION CONNECTOR L- W (A/T) CRUISE CONTROL ECU STP- G- B STOP LIGHT DATA LINK CONNECTOR 3 CRUISE CONTROL ACTUATOR W- B W- B W- B W- B W- B JUNCTION CONNECTOR JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 159 If any of the following conditions are detected, the set speed is erased and the control is canceled. (1) Disconnection or short in the Stop Light SW (2) Abnormality in vehicle speed signal (3) Abnormality in the actuator (4) The actual vehicle speed becomes slower than the minimum speed limit 2004 CELICA (EWD538U)
  • Page 160 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel) : GROUND POINTS Code See Page Ground Points Location Cowl Side Panel RH 2004 CELICA (EWD538U)
  • Page 161 NO. 1 B- O JUNCTION CONNECTOR IGNITION SW RELAY , E 9 , E10 , E12 ENGINE CONTROL MODULE ST1- MREL IGSW 7. 5A 15 2F CRUISE FL MAIN 3. 0W JUNCTION CONNECTOR RES/ACC SET/COAST BATTERY CANSEL 2004 CELICA (EWD538U)
  • Page 162 LG- B R- L R- L ( A/T ) , C13 COMBINATION METER VEHICLE SPEED SENSOR , E 9 , E10 ( COMBINATION METER ) E12 I ENGINE CONTROL MODULE BATT VTA2 GE01 VTA2 THROTTLE POSITION SENSOR 2004 CELICA (EWD538U)
  • Page 163 ECU- IG R- L ( A/T ) A/T INDICATOR SW [PARK/NEUTRAL POSITION SW] B- Y (M/T) , E 9 , E10 E12 I ENGINE CONTROL MODULE EPA2 VPA2 VCP2 VCPA ME01 ACCELERATOR PEDAL POSITION SENSOR W- B 2004 CELICA (EWD538U)
  • Page 164 If any of the following conditions are detected, the set speed is erased and the control is canceled. (1) Disconnection or short in the Stop Light SW (2) Abnormality in vehicle speed signal (3) Abnormality in the actuator (4) The actual vehicle speed becomes slower than the minimum speed limit 2004 CELICA (EWD538U)
  • Page 165 Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1) Instrument Panel Wire and Instrument Panel No.2 Wire (Instrument Panel Reinforcement LH) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) 2004 CELICA (EWD538U)
  • Page 166 : GROUND POINTS Code See Page Ground Points Location 42 (2ZZ-GE) Front Left Fender 42 (2ZZ GE) 42 (2ZZ-GE) Cylinder Head Cover LH Cylinder Head Cover LH 42 (2ZZ-GE) Front Left Fender Cowl Side Panel RH 2004 CELICA (EWD538U)
  • Page 167 ELECTRONICALLY CONTROLLED TRANSMISSION AND A/T INDICATOR FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) STOP RELAY STOP LIGHT NO. 1 BATT , E 3 , E 4 , E 5 ENGINE CONTROL MODULE MREL 2004 CELICA (EWD538U)
  • Page 168 CRUISE CONTROL ECU BK/UP A/T INDICATOR SW [PARK/NEUTRAL POSITION SW] B- W 22 2F B- Y IDLO , E 3 , E 4 , E 5 ENGINE CONTROL MODULE SLT+ SLT- SLT+ SLT- ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID 2004 CELICA (EWD538U)
  • Page 169 ELECTRONICALLY CONTROLLED TRANSMISSION AND A/T INDICATOR LG- R G- O W- R MPX1 MPX2 ODMS , E 3 , E 4 , E 5 ENGINE CONTROL MODULE ODLP BR- Y W- B 2004 CELICA (EWD538U)
  • Page 170 (1ZZ-FE) FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) WARNING LG- R G- O W- R , C13 COMBINATION METER BR- Y BR- Y 2004 CELICA (EWD538U)
  • Page 171 Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH) 2004 CELICA (EWD538U)
  • Page 172 Cylinder Head Cover LH 40 (1ZZ-FE) Front Left Fender Instrument Panel Brace RH Cowl Side Panel RH : SPLICE POINTS Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points 40 (1ZZ-FE) Engine Wire 2004 CELICA (EWD538U)
  • Page 173 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) STOP RELAY STOP LIGHT NO. 1 BATT , E 9 , E10 , E11 , E12 ENGINE CONTROL MODULE MREL GE01 VTA2 31 G 21 G VTA2 THROTTLE POSITION MOTOR 2004 CELICA (EWD538U)
  • Page 174 BK/UP A/T INDICATOR SW [PARK/NEUTRAL POSITION SW] 22 2F , E 9 , E10 , E11 , E12 ENGINE CONTROL MODULE SLT+ SLT- SL1+ SL1- SL2+ SL2- SLT+ SLT- SL1+ SL1- SL2+ SL2- ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID 2004 CELICA (EWD538U)
  • Page 175 W- R MPX1 W- R MPX1 MPX2 ODMS , E 9 , E10 , E11 ENGINE CONTROL MODULE SFTU SFTD ME01 ODLP SFTU SFTD TRANSMISSION SHIFT SW [COMB. SW] W- B BR- Y W- B W- B 2004 CELICA (EWD538U)
  • Page 176 (2ZZ-GE) FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) LG- R G- O WARNING W- R P- B , C13 COMBINATION METER W- B 2004 CELICA (EWD538U)
  • Page 177 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH) Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH) Engine Wire and Engine Room J/B (Engine Compartment Left) Engine Room Main Wire and Engine Room J/B (Engine Compartment Left) 2004 CELICA (EWD538U)
  • Page 178 Cylinder Head Cover LH 42 (2ZZ-GE) Front Left Fender Instrument Panel Brace RH Cowl Side Panel RH : SPLICE POINTS Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points 42 (2ZZ-GE) Engine Wire 2004 CELICA (EWD538U)

  • Page 179: Shift Lock

    SHIFT LOCK FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) TENS STOP STOP LIGHT SLS+ SLS- SHIFT LOCK CONTROL ECU 2004 CELICA (EWD538U)
  • Page 180 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH) Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH) Floor Wire and Instrument Panel J/B (Instrument Panel Brace RH) : GROUND POINTS Code See Page Ground Points Location Instrument Panel Brace RH 2004 CELICA (EWD538U)
  • Page 181 * 1 : W/ DOOR LOCK CONTROL * 2 : W/O DOOR LOCK CONTROL HORN HORN RELAY JUNCTION CONNECTOR L- B (* 1) HORN BODY ECU L- B (* 1) HORN SW [COMB. SW] HORN ( HIGH ) HORN ( LOW ) 2004 CELICA (EWD538U)
  • Page 182 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left) : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code See Page Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) 2004 CELICA (EWD538U)

  • Page 183: Cigarette Lighter And Clock (Usa)

    CIGARETTE LIGHTER AND CLOCK (USA) FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 7. 5A 7. 5A ECU- ACC DOME CIGARETTE LIGHTER CLOCK EARTH PBEW JUNCTION CONNECTOR COMBINATION METER 2004 CELICA (EWD538U)
  • Page 184 : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR Code See Page Junction Block and Wire Harness (Connector Location) Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH) : GROUND POINTS Code See Page Ground Points Location Instrument Panel Brace RH 2004 CELICA (EWD538U)

  • Page 185: Clock (Canada)

    W- R(*2) W- R(*1) W- R(* 1) JUNCTION CONNECTOR , C13 COMBINATION METER SPEEDOMETER CLOCK JUNCTION CONNECTOR * 1 : 1ZZ- FE W/ CRUISE CONTROL * 2 : EXCEPT * 1 VEHICLE SPEED SENSOR (COMBINATION METER) JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 186 Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B No.1) 42 (2ZZ-GE) Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) : GROUND POINTS Code See Page Ground Points Location Cowl Side Panel RH 2004 CELICA (EWD538U)

  • Page 187: Remote Control Mirror

    REMOTE CONTROL MIRROR FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 7. 5A ECU- ACC REMOTE CONTROL MIRROR SW JUNCTION CONNECTOR JUNCTION CONNECTOR REMOTE CONTROL MIRROR LH REMOTE CONTROL MIRROR RH 2004 CELICA (EWD538U)
  • Page 188 Joining Wire Harness and Wire Harness (Connector Location) Front Door LH Wire and Instrument Panel Wire (Left Kick Panel) Front Door RH Wire and Instrument Panel Wire (Right Kick Panel) : GROUND POINTS Code See Page Ground Points Location Cowl Side Panel LH 2004 CELICA (EWD538U)
  • Page 189 FRONT WIPER AND WASHER WASHER SW L- B WIPER SW WASHER MOTOR L- W L- W L- O L- O L- Y L- Y FRONT WIPER AND WASHER SW [COMB. SW] JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 190 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) WASHER WIPER L- B L- W L- O L- Y FRONT WIPER MOTOR W- B 2004 CELICA (EWD538U)

  • Page 191: Front Wiper And Washer

    Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Brace RH) : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code See Page Joining Wire Harness and Wire Harness (Connector Location) Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel) 2004 CELICA (EWD538U)
  • Page 192 : GROUND POINTS Code See Page Ground Points Location 40 (1ZZ-FE) Front Right Fender Front Right Fender 42 (2ZZ-GE) Cowl Side Panel LH Cowl Side Panel RH 2004 CELICA (EWD538U)

  • Page 193: Rear Wiper And Washer

    REAR WIPER AND WASHER FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) WASHER RR WIPER REAR WIPER AND WASHER SW [COMB. SW] WASHER1 WASHER MOTOR WASHER2 REAR WIPER MOTOR AND RELAY REAR WIPER RELAY REAR WIPER MOTOR 2004 CELICA (EWD538U)
  • Page 194 Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel) Back Door No.1 Wire and Floor Wire (Quarter Panel LH) Back Door No.2 Wire and Back Door No.1 Wire (Back Door Upper Left) : GROUND POINTS Code See Page Ground Points Location Cowl Side Panel LH 2004 CELICA (EWD538U)

  • Page 195: Rear Window Defogger

    REAR WINDOW DEFOGGER FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) DEF RLY DEFB BODY ECU RELAY RDEF A/C SW , R11 REAR WINDOW DEFOGGER COMBINATION METER W- B 2004 CELICA (EWD538U)
  • Page 196 : GROUND POINTS Code See Page Ground Points Location Instrument Panel Brace RH Luggage Room Left : SPLICE POINTS Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points Floor Wire 2004 CELICA (EWD538U)
  • Page 197 RADIO AND PLAYER MUTE BEEP JUNCTION CONNECTOR L- Y JUNCTION CONNECTOR AUTO ANTENNA CONTROL RELAY , S 7 STEREO COMPONENT AMPLIFIER AMP+ MUTE BEEP GND ( E ) FRONT DOOR TWEETER SPEAKER LH FRONT DOOR SPEAKER LH JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 198 RADIO AND PLAYER F. L F. R R. L R. R SGND GND3 REAR SPEAKER REAR SPEAKER 5 IF1 GND ( S ) , S 7 STEREO COMPONENT AMPLIFIER FRONT DOOR TWEETER SPEAKER RH FRONT DOOR SPEAKER RH 2004 CELICA (EWD538U)
  • Page 199 Floor Wire and Instrument Panel Wire (Instrument Panel Brace LH) Front Door RH Wire and Instrument Panel Wire (Right Kick Panel) : GROUND POINTS Code See Page Ground Points Location Instrument Panel Brace RH Cowl Side Panel RH 2004 CELICA (EWD538U)
  • Page 200 MEMO 2004 CELICA (EWD538U)

  • Page 201: Radio And Player (Built-In Type Amplifier)

    FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 7. 5A ECU- ACC RADIO , R 3 RADIO AND PLAYER AUTO ANTENNA CONTROL RELAY REAR SPEAKER REAR SPEAKER FRONT DOOR FRONT DOOR TWEETER TWEETER SPEAKER SPEAKER FRONT DOOR FRONT DOOR SPEAKER LH SPEAKER RH 2004 CELICA (EWD538U)
  • Page 202 Floor Wire and Instrument Panel Wire (Instrument Panel Brace LH) Floor Wire and Instrument Panel Wire (Instrument Panel Brace LH) Front Door RH Wire and Instrument Panel Wire (Right Kick Panel) : GROUND POINTS Code See Page Ground Points Location Instrument Panel Brace RH 2004 CELICA (EWD538U)

  • Page 203: Auto Antenna

    * 2 : BUILT- IN TYPE AMPLIFIER 7. 5A ECU- ACC TENS RDC AUTO ANTENNA R 2 A R 4 B RADIO AND PLAYER JUNCTION ( * 1 ) CONNECTOR ( * 2 ) AUTO ANTENNA CONTROL RELAY JUNCTION CONNECTOR 2004 CELICA (EWD538U)
  • Page 204 Engine Room Main Wire and Instrument Panel Wire (Instrument Panel Brace LH) Floor Wire and Instrument Panel Wire (Instrument Panel Brace LH) Floor Wire and Instrument Panel Wire (Instrument Panel Brace LH) : GROUND POINTS Code See Page Ground Points Location Luggage Room Left 2004 CELICA (EWD538U)

  • Page 205: Combination Meter

    , E 8 E ENGINE CONTROL MODULE 7. 5A BK/UP LP PANEL 2 MPX1 MPX2 MOPS ( * 1 ) ( * 3 ) FROM ILLUMINATIONS , C13 COMBINATION METER ILLUMINATION BUZZER LCD DISPLAY 15 B 14 B 2004 CELICA (EWD538U)
  • Page 206 * 5 : EXCEPT * 4 JUNCTION 7. 5A CONNECTOR WARNING ECU- B W- R TO CRUISE CONTROL ECU (* 4) W- R 11 IM ( * 4 * 2 ) TO CLOCK W- R (* 5 * 2) COMBINATION METER 2004 CELICA (EWD538U)
  • Page 207 COMBINATION METER , C13 COMBINATION METER 16 A Y- G R- L 2004 CELICA (EWD538U)
  • Page 208 HEAD RH FRONT FOG LIGHT RELAY JUNCTION CONNECTOR R- W R- W ( * 7 ) R- W(*7) R- W(*6) , B 7 BODY ECU DBKL PBKL MPX1 BLVL DCTY PCTY Y- G FUEL SENDER R- L 2004 CELICA (EWD538U)

  • Page 209: Combination Meter

    Engine Room Main Wire and Floor Wire (Instrument Panel Brace LH) : GROUND POINTS Code See Page Ground Points Location 40 (1ZZ-FE) Front Left Fender Front Left Fender 42 (2ZZ-GE) Instrument Panel Brace RH Cowl Side Panel RH 2004 CELICA (EWD538U)
  • Page 210 : SPLICE POINTS Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points 40 (1ZZ-FE) Floor Wire Engine Room Main Wire Engine Room Main Wire 42 (2ZZ-GE) 2004 CELICA (EWD538U)

  • Page 211: Radiator Fan And Condenser Fan

    FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) * 1 : 1ZZ- FE * 2 : 2ZZ- GE NO. 1 NO. 2 NO. 3 RELAY RELAY RELAY RADIATOR FAN MOTOR (*1) (*2) A/C SINGLE , E10 PRESSURE SW ENGINE CONTROL MODULE W- B 2004 CELICA (EWD538U)
  • Page 212 : GROUND POINTS Code See Page Ground Points Location 40 (1ZZ-FE) Front Right Fender Front Right Fender 42 (2ZZ-GE) 40 (1ZZ-FE) 42 (2ZZ-GE) Front Left Fender Front Left Fender 40 (1ZZ-FE) 42 (2ZZ-GE) Cowl Side Panel RH 2004 CELICA (EWD538U)

  • Page 213: Air Conditioning

    W- B ( * 2 ) ACMG PRE(* 1) LCKI HP(*2) MPX1 MPX2 (* 1) ( * 2 ) W- B BLOWER SW V- W G- O G- O LG- R LG- R A/C DUAL PRESSURE W- B 2004 CELICA (EWD538U)
  • Page 214 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) * 1 : 1ZZ- FE * 2 : 2ZZ- GE 7. 5A ECU- B WARNING A/C SW LA/C W- B , C13 COMBINATION METER V- W G- O LG- R W- B 2004 CELICA (EWD538U)
  • Page 215 32 (1ZZ-FE) 32 (1ZZ-FE) 34 (2ZZ-GE) 34 (2ZZ-GE) 32 (1ZZ-FE) 34 (2ZZ-GE) 34 (2ZZ-GE) 33 (1ZZ-FE) 35 (2ZZ-GE) 32 (1ZZ-FE) : RELAY BLOCKS Code See Page Relay Blocks (Relay Block Location) Engine Room R/B No.1 (Engine Compartment Left) 2004 CELICA (EWD538U)
  • Page 216 Front Left Fender 42 (2ZZ-GE) Instrument Panel Brace RH Cowl Side Panel RH Cowl Side Panel RH : SPLICE POINTS Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points Cowl No.2 Wire 2004 CELICA (EWD538U)
  • Page 217 ( USA ) W- B W- B W- B CIGARETTE BLOWER RESISTOR LIGHTER W- B W- B W- B COMBINATION ( E2 ) METER RADIO AND PLAYER ( * 1 ) W- B RADIO AND PLAYER (* 2) 2004 CELICA (EWD538U)
  • Page 218 WIPER AND WASHER SW [COMB. SW] W- B W- B TURN SIGNAL FLASHER RELAY W- B W- B DATA LINK CONNECTOR 3 W- B W- B POWER WINDOW LOCK W- B W- B W- B COMBINATION ( EL ) RHEOSTAT 2004 CELICA (EWD538U)
  • Page 219 W- B A/C SINGLE FRONT TURN SIGNAL PRESSURE SW LIGHT RH W- B W- B FRONT PARKING LIGHT HEADLIGHT RH (LOW) (W/O HID) W- B W- B FRONT SIDE MARKER FRONT WIPER MOTOR LIGHT RH W- B 2004 CELICA (EWD538U)
  • Page 220 W- B W- B REAR COMBINATION FUEL PUMP LIGHT LH W- B W- B W- B REAR WINDOW DEFOGGER W- B REAR COMBINATION LIGHT RH W- B LICENSE PLATE LIGHT LH W- B LICENSE PLATE LIGHT RH 2004 CELICA (EWD538U)
  • Page 221 IGNITION COIL AND IGNITER NO. 2 W- B IGNITION COIL AND IGNITER NO. 3 W- B IGNITION COIL AND IGNITER NO. 4 W- B W- B ( 2ZZ- GE ) ( 2ZZ- GE ) AIR PUMP MOTOR 2004 CELICA (EWD538U)
  • Page 222 Engine Room No.2 Wire and Instrument Panel Wire (Right Kick Panel) Front Door RH Wire and Instrument Panel Wire (Right Kick Panel) Back Door No.1 Wire and Floor Wire (Quarter Panel LH) Back Door No.2 Wire and Back Door No.1 Wire (Back Door Upper Left) 2004 CELICA (EWD538U)
  • Page 223 Wire Harness with Splice Points Code See Page Wire Harness with Splice Points 40 (1ZZ-FE) Engine Room Main Wire Engine Room Main Wire Engine Room Main Wire 42 (2ZZ-GE) Engine Room No.2 Wire 42 (2ZZ-GE) Engine Wire Instrument Panel Wire 2004 CELICA (EWD538U)
  • Page 224 MEMO 2004 CELICA (EWD538U)
  • Page 225 J POWER SOURCE (Current Flow Chart) 2004 CELICA (EWD538U)
  • Page 226 2004 CELICA (EWD538U)
  • Page 227 Electronically Controlled Transmission and A/T Indicator (2ZZ-GE) Engine Control (1ZZ-FE) Engine Control (2ZZ-GE) Headlight (w/ HID) HEAD RH UPR Multiplex Communication System ∗ These are the page numbers of the first page on which the related system is shown. 2004 CELICA (EWD538U)
  • Page 228 Moon Roof Multiplex Communication System Power Window Wireless Door Lock Control Multiplex Communication System DEF RLY Power Window Rear Window Defogger ∗ These are the page numbers of the first page on which the related system is shown. 2004 CELICA (EWD538U)
  • Page 229 Radio and Player (Built-In Type Amplifier) Radio and Player (Separate Type Amplifier) Remote Control Mirror Wireless Door Lock Control Air Conditioning 7.5A ECU-B Clock (CANADA) ∗ These are the page numbers of the first page on which the related system is shown. 2004 CELICA (EWD538U)

  • Page 230: Table Of Contents

    Rear Wiper and Washer S/ROOF Moon Roof Front Wiper and Washer WASHER Rear Wiper and Washer Door Lock Control DOOR Electric Tension Reducer ∗ These are the page numbers of the first page on which the related system is shown. 2004 CELICA (EWD538U)
  • Page 231 System Page Headlight (w/ HID) HEAD LH UPR Headlight (w/o HID) Headlight (w/ HID) HEAD RH UPR Headlight (w/o HID) ∗ These are the page numbers of the first page on which the related system is shown. 2004 CELICA (EWD538U)
  • Page 232 MEMO 2004 CELICA (EWD538U)
  • Page 233 3 4 5 6 4 5 6 Black Gray Gray Black Black 1 2 3 3 4 5 6 7 8 9 101112 13 6 7 8 14 15 16171819 2021222324 25 Black Black Black Black (1ZZ-FE) Gray 2004 CELICA (EWD538U)
  • Page 234 1 2 3 4 5 6 7 8 1 2 3 4 5 6 9 10111213141516 9 10 1112131415 16 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 2004 CELICA (EWD538U)
  • Page 235 13 14 15 16 13 14 15 16 21 22 23 24 22 23 22 23 24 25 30 31 32 Yellow Yellow 15 16 17 18 13 14 15 16 24 25 22 23 24 25 2004 CELICA (EWD538U)
  • Page 236 Black Black Black Black 6 7 8 9 10 Gray Black Black Gray Gray Gray Black Black Black 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 3 4 5 6 2004 CELICA (EWD538U)
  • Page 237 A A B B C C A A B B C C D D E E F F D D E E F F Black Black 5 6 7 8 9 10 Black Black Gray 3 4 5 6 7 8 2004 CELICA (EWD538U)
  • Page 238 5 6 7 8 9 11 12 13 14 15 16 17 18 19 20 Black Black Black Black 1 2 3 4 5 6 7 8 9 10 Yellow Yellow 7 8 9 101112 10 11 12 13 14 15 2004 CELICA (EWD538U)
  • Page 239 26 27 28 32 33 34 (1ZZ-FE) Black (2ZZ-GE) Black 1 2 3 1 2 3 4 5 6 Black Black Blue Black 1 2 3 Black Black Blue Blue Black 1 2 3 1 2 3 2004 CELICA (EWD538U)
  • Page 240 MEMO 2004 CELICA (EWD538U)
  • Page 241 Combination Meter 90980-11913 90980-10915 Speaker) Combination SW 90980-11594 Front Door Tweeter Speaker RH (8 90980-10794 Combination SW 90980-11672 Speaker) Combination SW 90980-11986 Note: Not all of the above part numbers of the connector are established for the supply. 2004 CELICA (EWD538U)
  • Page 242 Shift Lock Control ECU 90980-11909 Junction Connector Side Airbag Squib LH 90980-11661 90980-11661 90980-11864 90980-11864 Junction Connector Side Airbag Squib RH Junction Connector 90980-11686 Stereo Component Amplifier 90980-10848 Knock Sensor (1ZZ-FE) 90980-11166 Stereo Component Amplifier 90980-10807 Knock Sensor (2ZZ-GE) 90980-11875 2004 CELICA (EWD538U)
  • Page 243 VSV (Canister Closed Valve) 90980-11162 VSV (EVAP) 90980-11156 Vapor Pressure Sensor 90980-11143 VSV (Pressure Switching Valve) 90980-11859 VSV (Air Pump) 90980-11156 Washer Motor 90980-10981 Note: Not all of the above part numbers of the connector are established for the supply. 2004 CELICA (EWD538U)
  • Page 244 Code Part Name Part Number Code Part Name Part Number 2004 CELICA (EWD538U)
  • Page 245 M OVERALL ELECTRICAL WIRING DIAGRAM 2004 CELICA (EWD538U)
  • Page 246 [A] : System Title [F] : Junction Block (The number in the circle is the J/B No. and the connector code is shown beside [B] : Indicates the wiring color. it). Junction Blocks are shaded to clearly Wire colors are indicated by an alphabetical code. separate them from other parts.
  • Page 247 SYSTEM INDEX SYSTEMS LOCATION SYSTEMS LOCATION ........... . . 19-3 Ignition (2ZZ-GE) .
  • Page 248 1 CELICA ELECTRICAL WIRING DIAGRAM ( Cont. next page ) P o w e r S o urc e M ultip lex C o mm u nica tio n S ys te m L- B L- Y R- L R- L L- R IGNITION SW 17 B...
  • Page 249 Y- B L- W L- W R- Y L- R L- R W- B Y- B LUGGAGE COMPARTMENT LIGHT L- W R- W R- W DOOR L- W W- L PERSONAL LIGHT [MOON ROOF CONTROL SW] PERSONAL LIGHT 2004 CELICA (EWD538U)
  • Page 250 1 CELICA ( Cont’ d ) M u ltip le x C o m mu nic ation S y s tem L- B L- Y R- L R- L BODY ECU PBKL DBKL 15 B 16 B 11 B 14 B POWER WINDOW MASTER SW 3 IF1 8 IF1...
  • Page 251 W- B W- B B- R 7. 5A AM2 25A AM1 B- R B- R 120A ALT IG1 RELAY L- R W- B W- B 5A ECU- IG B- O (M/T) 5A WARNING R- Y 7. 5A OBD 2004 CELICA (EWD538U)
  • Page 252 2 CELICA ( Cont. next page ) E n gine C on trol ( 2 Z Z - G E ) * 2 : MALFUNCTION B- O(M/T) R- Y B- O ( M/T ) B- O B- W B- O W- L B- W B- W...
  • Page 253 B- W W- B W- B CAMSHAFT TIMING OIL CONTROL VALVE ( VVT ) B- L G- O ( *1 ) G- O CAMSHAFT TIMING OIL CONTROL VALVE ( VVL ) L- B L- W L- W 2004 CELICA (EWD538U)
  • Page 254 2 CELICA ( Cont’ d ) E n gine C on tro l ( 2 Z Z - G E ) C ru is e C on trol ( 2 Z Z - G E ) * 1 : Shielded B- O(M/T) B- W B- Y...
  • Page 255 MEMO 2004 CELICA (EWD538U)
  • Page 256 3 CELICA ( Cont. next page ) E ng in e C on trol ( 1 Z Z - F E ) P o w e r S o urc e B- O B- W B- W B- W B- W 5 AM2 B- R B- W...
  • Page 257 R- B VSV(ACIS) B- W R- L R- L L- B VSV ( EVAP ) B- W G- O G- R VSV ( Canister Closed Valve) B- W V- W R- B B- R P- B B- O 2004 CELICA (EWD538U)
  • Page 258 3 CELICA ( Cont’ d ) E n gine C o ntro l ( 1 Z Z - F E ) * 1 : Shielded W- B B- W B- W W- B OX1A OX1B 5 EA1 8 EA1 2 EA1 12 C 16 B 25 B...
  • Page 259 10A EFI NO. 1 W- B B- R L- R EFI RELAY W- B 20A EFI W- L BATTERY 120A ALT B- R B- R L- R 5A BK/UP LP R- L W- B W- B 5A WARNING R- Y 2004 CELICA (EWD538U)
  • Page 260 4 CELICA ( Cont’ d ) E le ctro n ic ally C o n tr olle d T ra ns m is s io n an d A /T In d ic ato r ( 2 Z Z - G E ) R- Y BR- Y 3 IF2...
  • Page 261 10A EFI NO. 1 W- B B- R L- R EFI RELAY L- B W- B 20A EFI BATTERY 120A ALT B- R B- R L- R 5A BK/UP LP R- L W- B W- B 5A WARNING R- Y 2004 CELICA (EWD538U)
  • Page 262 5 CELICA ( Cont’ d ) E le c tron ic a lly C on trolled T ra n sm iss ion a nd A /T Ind ic a to r ( 1 Z Z - F E ) R- Y BR- Y 3 II2 16 D...
  • Page 263 W- B (A/T) To Engine Control Module<2- 10><3- 8> W- B (M/T) ST RELAY B- W B- W W- B 7. 5A ST 40A MAIN B- R BATTERY 7. 5A AM2 B- R B- R 15A IG2 2004 CELICA (EWD538U)
  • Page 264 7 CELICA Ign ition ( 2 Z Z - G E ) P ow er S ou rc e B- R B- O B- O B- O JUNCTION CONNECTOR IGNITION SW RELAY 30 2C 13 2C 12 2C FL MAIN W- B W- B W- B...
  • Page 265 R- Y IG1 RELAY W- B W- B R- Y 5A WARNING BATTERY 25A AM1 120A ALT B- R B- R 15A FR FOG HEAD RELAY L- R R- W 7. 5A ALT- S HEAD RH LWR 2004 CELICA (EWD538U)
  • Page 266 9 CELICA H ea dligh t ( w / H ID ) P ow er S ou rc e * 1 : w/ Fog Light * 2 : w/o Fog Light L- R L- R L- W W- L RELAY IGNITION SW W- B W- B...
  • Page 267 HEAD RH LWR HEADLIGHT RH(Low) R- W R- W R- W W- B HEAD LH LWR JUNCTION HEADLIGHT LH(Low) CONNECTOR R- L W- B 40A MAIN 25A DCC 120A ALT B- R B- R R- L B- R 2004 CELICA (EWD538U)
  • Page 268 11 CELICA P ow e r S o urc e H ea dlig ht B e am L e v el C o ntr ol JUNCTION CONNECTOR HEADLIGHT BEAM LEVEL CONTROL SW 7. 5A HEAD LVL DRL NO. 1 HEAD RELAY 6 IE5 5 IG3...
  • Page 269 FRONT PARKING LIGHT RH W- B FRONT SIDE MARKER LIGHT RH W- B W- B FRONT PARKING LIGHT LH W- B FRONT SIDE MARKER LIGHT LH W- B W- B W- B LIGHT CONTROL B- R B- R 2004 CELICA (EWD538U)
  • Page 270 13 CELICA P o w e r S o ur ce B ac k - U p L ig ht S to p L ig ht H orn * 1 : w/ Door Lock Control * 2 : w/o Door Lock Control * 3 : 1ZZ- FE 120A R- L...
  • Page 271 W- G A/C SW G- B W- B CIGARETTE LIGHTER W- G (Canada) W- B W- B ( USA ) ( USA ) CLOCK W- B (Canada) W- B W- B LIGHT CONTROL B- R B- R 2004 CELICA (EWD538U)
  • Page 272 15 CELICA P o w e r S o urc e T urn S ign al an d H a z ard W a rning L igh t S h ift L oc k TURN SIGNAL SW HAZARD SW [COMB. SW] STOP LIGHT IGNITION SW JUNCTION...
  • Page 273 M OVERALL ELECTRICAL WIRING DIAGRAM REAR WIPER MOTOR L- Y L- Y L- Y L- R L- R L- Y L- O L- O L- W L- B W- B W- B W- B B- R B- R 2004 CELICA (EWD538U)
  • Page 274 17 CELICA P ow e r S o urc e M o on R oo f R em ote C o ntro l M irror IGNITION SW L- R R- L 4 IA1 REMOTE CONTROL MIRROR SW JUNCTION CONNECTOR 3 IB1 4 IB1 5 IB1 JUNCTION...
  • Page 275 (M/T) JUNCTION CONNECTOR B- O W- R From Combination Meter<24- 3> 25A AM1 L- R B- O W- B W- B 5A ECU- IG B- O (M/T) IG1 RELAY 5A WARNING R- Y B- R B- R 2004 CELICA (EWD538U)
  • Page 276 19 CELICA P ow e r S o urc e A B S IGNITION SW ABS SPEED SENSOR ABS SPEED SENSOR FRONT LH FRONT RH L- R 22 A 2 IG3 9 IG3 17 B 19 A 16 IE3 13 IE3 3 IE3 15 IE3 12 IE3...
  • Page 277 Y- B B- O (2ZZ- GE) Y- B L- R W- B W- B 7. 5A AM2 B- R B- R 25A AM1 IG1 RELAY L- R 120A ALT 7. 5A SRS- IG B- R B- R 2004 CELICA (EWD538U)
  • Page 278 21 CELICA C lo c k ( U S A ) R a dio an d P lay e r ( B uilt- in T yp e A m plifie r ) P ow e r S o urc e C ig are tte L ig hte r REAR SPEAKER REAR SPEAKER...
  • Page 279 (Shielded) V- W L- Y P- L L- Y L- Y JUNCTION CONNECTOR 7. 5A ECU- ACC W- B W- B 25A AM1 120A ALT B- R 25A DCC 15A RADIO L- Y L- R B- R 2004 CELICA (EWD538U)
  • Page 280 23 CELICA C lo ck ( C an a da ) P o w e r S o urc e A uto A nte n na L- R L- R 7. 5A DOME IGNITION SW 7. 5A RELAY TENS ECU- ACC AUTO ANTENNA CLOCK CONTROL RELAY...
  • Page 281 METER ILLUMINATION 25A AM1 L- R W- B W- B 5A BK/UP LP R- L IG1 RELAY 5A WARNING 120A ALT R- Y B- R 25A DCC 7. 5A ECU- B L- R L- R B- R 2004 CELICA (EWD538U)
  • Page 282 24 CELICA ( Cont’ d ) C o mb in a tion M e ter R- L Y- G FUEL SENDER 14 A 17 A 16 A 12 B 13 B 14 B 20 B 21 B MPX1 DBKL PBKL DCTY PCTY BLVL 19 B...
  • Page 283 To Engine Control Module<2- 10><3- 8> L- Y 5A FAN RLY Y- R L- Y L- Y L- Y W- B IG1 RELAY 30A DEF W- B 30A RDI 30A CDS 25A AM1 B- R B- R Y- R 2004 CELICA (EWD538U)
  • Page 284 26 CELICA P ow e r S o urc e A ir C o nd ition in g * 1 : 1ZZ- FE * 2 : 2ZZ- GE A/C SW IGNITION SW A/C EVAPORATOR TEMP. SENSOR LA/C RELAY MG/C RELAY RELAY 16 ID1 15 ID1...

Table of Contents