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.
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HOMESERVICE MANUALSINFINITI2013QX56 RWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM - DTCS P0500 TO P1424
2013 Infiniti QX56 RWD
Engine Control System - DTCS P0500 To P1424
2013 Infiniti QX56 RWDSECTION Engine Control System - DTCS P0500 To P1424
- DTC P0500: VSS
- DTC P0506: ISC System
- DTC P0507: ISC System
- DTC P050A, P050B, P050E: Cold Start Control
- DTC P0524: Engine Oil Pressure
- DTC P0527: Cooling Fan Speed Sensor
- DTC P0550: PSP Sensor
- DTC P0603: ECM Power Supply
- DTC P0605: ECM
- DTC P0607: ECM
- DTC P0611: ECM Protection
- DTC P062B: ECM
- DTC P0643: Sensor Power Supply
- DTC P0850: PNP Switch
- DTC P100A, P100B: VVEL System
- DTC P1087, P1088: VVEL System
- DTC P1089, P1092: VVEL Control Shaft Position Sensor
- DTC P1090, P1093: VVEL Actuator Motor
- DTC P1091: VVEL Actuator Motor Relay
- DTC P1148, P1168: Closed Loop Control
- DTC P1197: Out Of Gas
- DTC P1212: TCS Communication Line
- DTC P1217: Engine Over Temperature
- DTC P1220: Fuel Pump Control Module (FPCM)
- DTC P1225: TP Sensor
- DTC P1226: TP Sensor
- DTC P1423, P1424: Cold Start Control
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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.