OBD fault code library
Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.
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Fault codes
P1258
Engine Coolant Over temperature Protection Mode Active
Chevrolet
Injector Circuit
High severity
P1975
Issue in secondary air injection valve (controls emission)
Skoda
Auxiliary Emissions Control
High severity
P1976
Issue in secondary air injection valve (controls emission)
Skoda
Auxiliary Emissions Control
High severity
P1978
Issue in secondary air injection valve (controls emission)
Skoda
Auxiliary Emissions Control
High severity
P1276
Accelerator Pedal Position Sensor 1 Performance
Chevrolet
Vehicle Speed and Idle Control System
Low severity
P1277
Accelerator Pedal Position Sensor 1 Circuit Low Voltage
Chevrolet
Vehicle Speed and Idle Control System
Low severity
P1281
Accelerator Pedal Position Sensor 2 Circuit Performance
Chevrolet
Vehicle Speed and Idle Control System
Low severity
P1282
Accelerator Pedal Position Sensor 2 Circuit Low Voltage
Chevrolet
Vehicle Speed and Idle Control System
Low severity
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