OBD2 Trouble Codes
Browse 543 diagnostic trouble codes — each with symptoms, causes, cost estimates, and repair guidance.
Evaporative Emission System Leak Detected (Fuel Cap Loose/Off)
Evaporative Emission System Purge Control Valve Circuit Low
Evaporative Emission System Purge Control Valve Circuit High
Fuel Level Sensor 'A' Circuit
Fuel Level Sensor 'A' Circuit Range/Performance
Fuel Level Sensor 'A' Circuit Low Input
Fuel Level Sensor 'A' Circuit High Input
Fuel Level Sensor 'A' Circuit Intermittent
Cooling Fan 1 Control Circuit Malfunction
Cooling Fan 2 Control Circuit Malfunction
Secondary Air Injection System Insufficient Flow (Bank 1)
Secondary Air Injection System Insufficient Flow (Bank 2)
Vehicle Speed Sensor (VSS) Malfunction
Vehicle Speed Sensor Range/Performance
Vehicle Speed Sensor Circuit Low Input
Vehicle Speed Sensor Intermittent/Erratic/High
Brake Switch "A"/"B" Correlation
Idle Air Control System Malfunction
Idle Air Control System RPM Lower Than Expected
Idle Air Control System RPM Higher Than Expected
Idle Air Control System Circuit Low
Idle Air Control System Circuit High
Closed Throttle Position Switch Malfunction
Engine Oil Pressure Sensor/Switch Circuit
Engine Oil Pressure Sensor/Switch Range/Performance
Engine Oil Pressure Sensor/Switch Low Voltage
Engine Oil Pressure Sensor/Switch High Voltage
Engine Oil Pressure Too Low
A/C Refrigerant Pressure Sensor Circuit Malfunction
A/C Refrigerant Pressure Sensor Circuit Low Input
A/C Refrigerant Pressure Sensor Circuit High Input
System Voltage
System Voltage Low
Serial Communication Link Malfunction
Internal Control Module Memory Check Sum Error
Control Module Programming Error
Internal Control Module Keep Alive Memory (KAM) Error
Internal Control Module Random Access Memory (RAM) Error
Internal Control Module Read Only Memory (ROM) Error
ECM/PCM Processor Fault
Control Module Performance
Starter Relay Circuit
Starter Relay Circuit Low
Starter Relay Circuit High
Generator Control Circuit Malfunction
Generator Field/F Terminal Circuit Low
Fuel Pump A Control Circuit/Open
VIN Not Programmed or Incompatible — ECM/PCM
Throttle Actuator Control Range/Performance (Bank 1)
Intake Manifold Tuning Valve Control Circuit Low
Transmission Control System Malfunction
Transmission Range Sensor Circuit Malfunction (PRNDL Input)
Transmission Range Sensor "A" Circuit Range/Performance
Transmission Fluid Temperature Sensor "A" Circuit
Transmission Fluid Temperature Sensor "A" Circuit Range/Performance
Transmission Fluid Temperature Sensor "A" Circuit Low Input
Transmission Fluid Temperature Sensor "A" Circuit High Input
Transmission Fluid Temperature Sensor "A" Circuit Intermittent
Input/Turbine Speed Sensor Circuit Malfunction
Input/Turbine Speed Sensor "A" Circuit Range/Performance