CHEVROLET fault codes
Coverage shown is GM data: 17,703 codes · 2,212 vehicle records · 180 ECU records · 10,756 live-data parameters.
CHEVROLET shares fault-code data with GM. Data may not cover CHEVROLET-specific systems.
Codes 17,703
| Code | Description | Brands | System |
|---|---|---|---|
| P303A | Charging Inlet - Tri-color Status LED | 12 | Powertrain |
| P303B | Charging Coupler Temperature Sensor | 11 | Powertrain |
| P303C | High Voltage Battery Maximum Voltage - Requested Versus Measured | 10 | Powertrain |
| P303D | Cold start valve: open circuit | 10 | Powertrain |
| P303E | Cold start valve: short to plus; Open circuit | 11 | Powertrain |
| P303F | Cold start valve: short to ground; Open or short to plus | 13 | Powertrain |
| P3040 | Transmission gear ratio implausible; Mechanical failure | 18 | Powertrain |
| P3041 | Powertrain Databus: Implausible Engine Temp. Message from Inst. Panel | 17 | Powertrain |
| P3042 | Heater Regulation: Implausible Signal | 15 | Powertrain |
| P3043 | Fuel pump: mechanical malfunction; Defective | 18 | Powertrain |
| P3044 | Fuel pump: short circuit | 17 | Powertrain |
| P3045 | Fuel pump: electronics defective; Open circuit | 18 | Powertrain |
| P3046 | Starter relay 1: electr. malfunction in circuit (relay stuck / Does not switch); Defective | 22 | Powertrain |
| P3047 | Control circuit for starter relay 2: short to plus; Open circuit | 17 | Powertrain |
| P3048 | Control circuit for starter relay 2: short to ground; Mechanical failure | 17 | Powertrain |
| P3049 | Control circuit for starter relay 2: open circuit; Mechanical failure | 16 | Powertrain |
| P304A | Power Convertor A - High Voltage Supply Circuit | 12 | Powertrain |
| P304B | Position sensor for heater control: electrical malfunction; Open circuit | 14 | Powertrain |
| P304C | Disengagement clutch: adaptation limit exceeded; Mechanical failure | 13 | Powertrain |
| P304D | Disengagement clutch: adaptation range not reached; Open circuit | 11 | Powertrain |
| P304E | Hybrid/EV Battery Interface Control Module 13 Voltage Sensor Circuit Low Voltage | 10 | Powertrain |
| P304F | Switch for Electric driving; Defective | 13 | Powertrain |
| P3050 | Starter relay 2: electr. malfunction in circuit (relay stuck / Does not switch); Implausible signal | 23 | Powertrain |
| P3051 | Starter Control: Returned Message: 50 Implausible Signal | 17 | Powertrain |
| P3052 | Idle speed control catalyst heating deviation high | 25 | Powertrain |
| P3053 | DC/DC converter output voltage sensor circuit 1 high voltage | 23 | Powertrain |
| P3054 | Starter will not turn: jammed or electrical malfunction | 24 | Powertrain |
| P3055 | DC/DC converter output voltage 1 performance | 20 | Powertrain |
| P3056 | DC/DC converter output voltage 2 performance | 20 | Powertrain |
| P3057 | Exhaust Pressure Sensor 2: Short to Plus | 15 | Powertrain |
| P3058 | Exhaust Gas Recirculation System 2: Insufficient Flow Detected | 14 | Powertrain |
| P3059 | Exhaust Gas Recirculation System 2: Excessive Flow Detected | 15 | Powertrain |
| P305A | Start/Stop function | 11 | Powertrain |
| P305B | Speed limiter and cruise control | 11 | Powertrain |
| P305C | Intake air temperature sensor 2: short to GND; Short to plus | 11 | Powertrain |
| P305D | Intake air temperature sensor 2: short to plus; Short to ground | 11 | Powertrain |
| P305E | Intake air temperature sensor 2: implausible signal; Open circuit | 11 | Powertrain |
| P305F | Instrument cluster turn-off time: malfunction; Mechanical failure | 12 | Powertrain |
| P3060 | Knock detector | 16 | Powertrain |
| P3061 | Hybrid/EV battery precharge high current | 15 | Powertrain |
| P3062 | Boost Regulation 2: Boost Pressure too High | 14 | Powertrain |
| P3063 | Boost Regulation 2: Boost Pressure too Low | 14 | Powertrain |
| P3064 | Boost Pressure Regulation Solenoid 3 (N388): Electrical Malfunction | 15 | Powertrain |
| P3065 | Electronic throttle body failure | 20 | Powertrain |
| P3066 | Boost Pressure Regulation Solenoid 3 (N388): Short to Plus | 15 | Powertrain |
| P3067 | Boost Pressure Regulation Solenoid 4 (N389): Electrical Malfunction | 15 | Powertrain |
| P3068 | Boost Pressure Regulation Solenoid 4 (N389): Short to Ground | 14 | Powertrain |
| P3069 | Boost Pressure Regulation Solenoid 4 (N389): Short to Plus | 15 | Powertrain |
| P306A | Injection time failure | 13 | Powertrain |
| P306B | Intake variable timing solenoid valve | 13 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.