Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Infiniti G37 BaseFACTORY OEM SERVICE PROCEDURE
Engine Control System DTCS
ENGINE CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| U0113, U1003 | CAN COMM CIRCUIT |
| U1000, U1001 | CAN COMM CIRCUIT |
| U1010 | CONTROL UNIT (CAN) |
| U1011 | CONTROL UNIT (CAN) |
| U1024 | CAN COMM CIRCUIT |
| P0011, P0021 | IVT CONTROL |
| P0031, P0032, P0051, P0052 | A/F SENSOR 1 HEATER |
| P0037, P0038, P0057, P0058 | HO2S2 HEATER |
| P0075, P0081 | IVT CONTROL SOLENOID VALVE |
| P0101, P010B | MAF SENSOR |
| P0102, P0103, P010C, P010D | MAF SENSOR |
| P010A | MANIFOLD ABSOLUTE PRESSURE SENSOR |
| P0112, P0113 | IAT SENSOR |
| P0117, P0118 | ECT SENSOR |
| P0122, P0123, P0227, P0228 | TP SENSOR |
| P0125 | ECT SENSOR |
| P0127 | IAT SENSOR |
| P0128 | THERMOSTAT FUNCTION |
| P0130, P0150 | A/F SENSOR 1 |
| P0131, P0151 | A/F SENSOR 1 |
| P0132, P0152 | A/F SENSOR 1 |
| P0133, P0153 | A/F SENSOR 1 |
| P0137, P0157 | HO2S2 |
| P0138, P0158 | HO2S2 |
| P0139, P0159 | HO2S2 |
| P0171, P0174 | FUEL INJECTION SYSTEM FUNCTION |
| P0172, P0175 | FUEL INJECTION SYSTEM FUNCTION |
| P0181 | FTT SENSOR |
| P0182, P0183 | FTT SENSOR |
| P0196 | EOT SENSOR |
| P0197, P0198 | EOT SENSOR |
| P0222, P0223, P2132, P2133 | TP SENSOR |
| P0300, P0301, P0302, P0303, P0304, P0305, P0306 | MISFIRE |
| P0327, P0328, P0332, P0333 | KS |
| P0335 | CKP SENSOR (POS) |
| P0340, P0345 | CMP SENSOR (PHASE) |
| P0420, P0430 | THREE WAY CATALYST FUNCTION |
| P0441 | EVAP CONTROL SYSTEM |
| P0442 | EVAP CONTROL SYSTEM |
| P0443 | EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE |
| P0444, P0445 | EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE |
| P0447 | EVAP CANISTER VENT CONTROL VALVE |
| P0448 | EVAP CANISTER VENT CONTROL VALVE |
| P0451 | EVAP CONTROL SYSTEM PRESSURE SENSOR |
| P0452 | EVAP CONTROL SYSTEM PRESSURE SENSOR |
| P0453 | EVAP CONTROL SYSTEM PRESSURE SENSOR |
| P0455 | EVAP CONTROL SYSTEM |
| P0456 | EVAP CONTROL SYSTEM |
| P0460 | FUEL LEVEL SENSOR |
| P0461 | FUEL LEVEL SENSOR |
| P0462, P0463 | FUEL LEVEL SENSOR |
| P0500 | VSS |
| P0506 | ISC SYSTEM |
| P0507 | ISC SYSTEM |
| P0524 | ENGINE OIL PRESSURE |
| P0550 | PSP SENSOR |
| P0555 | BRAKE BOOSTER PRESSURE SENSOR |
| P0603 | ECM POWER SUPPLY |
| P0605 | ECM |
| P0643 | SENSOR POWER SUPPLY |
| P0850 | PNP SWITCH |
| P100A, P100B | VVEL SYSTEM |
| P1087, P1088 | VVEL SYSTEM |
| P1089, P1092 | VVEL CONTROL SHAFT POSITION SENSOR |
| P1090, P1093 | VVEL ACTUATOR MOTOR |
| P1091 | VVEL ACTUATOR MOTOR RELAY |
| P1148, P1168 | CLOSED LOOP CONTROL |
| P1211 | TCS CONTROL UNIT |
| P1212 | TCS COMMUNICATION LINE |
| P1217 | ENGINE OVER TEMPERATURE |
| P1225, P1234 | TP SENSOR |
| P1226, P1235 | TP SENSOR |
| P1233, P2101 | ELECTRIC THROTTLE CONTROL FUNCTION |
| P1236, P2118 | THROTTLE CONTROL MOTOR |
| P1238, P2119 | ELECTRIC THROTTLE CONTROL ACTUATOR |
| P1239, P2135 | TP SENSOR |
| P1290, P2100, P2103 | THROTTLE CONTROL MOTOR RELAY |
| P1421 | COLD START CONTROL |
| P1550 | BATTERY CURRENT SENSOR |
| P1551, P1552 | BATTERY CURRENT SENSOR |
| P1553 | BATTERY CURRENT SENSOR |
| P1554 | BATTERY CURRENT SENSOR |
| P1564 | ASCD STEERING SWITCH |
| P1564 | ICC STEERING SWITCH |
| P1568 | ICC FUNCTION |
| P1572 | ASCD BRAKE SWITCH |
| P1572 | ICC BRAKE SWITCH |
| P1574 | ASCD VEHICLE SPEED SENSOR |
| P1574 | ICC VEHICLE SPEED SENSOR |
| P1606 | VVEL CONTROL MODULE |
| P1607 | VVEL CONTROL MODULE |
| P1608 | VVEL SENSOR POWER SUPPLY |
| P1715 | INPUT SPEED SENSOR (TURBINE REVOLUTION SENSOR) |
| P1805 | BRAKE SWITCH |
| P2122, P2123 | APP SENSOR |
| P2127, P2128 | APP SENSOR |
| P2138 | APP SENSOR |
| P2A00 | A/F SENSOR 1 |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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