Suzuki 2006 SX4 Service Manual page 116

1A-72 Engine General Information and Diagnosis:
DTC Detecting Condition and Trouble Area
DTC detecting condition
P0122:
Output voltage of TP sensor (main) is lower than 0.3 V.
(1 driving cycle detection logic)
P0123:
Output voltage of TP sensor (main) is higher than 4.6 V.
(1 driving cycle detection logic)
DTC Confirmation Procedure
1) With ignition switch OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC by using scan tool.
3) Start engine and run it for 10 sec.
4) Check DTC.
DTC Troubleshooting
NOTE
• When DTC P0122 and P0222 are indicated together, it is possible that TP sensor power supply
circuit is open.
• When DTC P0123 and P0223 are indicated together, it is possible that TP sensor power supply
circuit is shorted to power circuit and/or TP sensor ground circuit is open.
Step
1 Was "Engine and Emission Control System Check"
performed?
2 TP sensor and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch, check "TP Sensor 1 Volt"
displayed on scan tool when accelerator pedal is
released and depressed fully.
Is displayed TP sensor value as described voltage in "Scan
Tool Data"?
Action
Trouble area
• Electric throttle body assembly
• TP sensor main circuit
• ECM
Yes
Go to Step 2.
Intermittent trouble.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".
No
Go to "Engine and
Emission Control
System Check".
Go to Step 3.