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
P0546
Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 1
Generic
Vehicle Speed and Idle Control System
Medium severity
P0548
Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 1
Generic
Vehicle Speed and Idle Control System
Medium severity
P0549
Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 1
Generic
Vehicle Speed and Idle Control System
Medium severity
P0551
Power Steering Pressure Sensor Circuit Range/Performance
Generic
Vehicle Speed and Idle Control System
Medium severity
P0552
Power Steering Pressure Sensor Circuit Low Input
Generic
Vehicle Speed and Idle Control System
Medium severity
P0553
Power Steering Pressure Sensor Circuit High Input
Generic
Vehicle Speed and Idle Control System
Medium severity
P0555
Brake Booster Pressure Sensor Circuit
Generic
Vehicle Speed and Idle Control System
High severity
P0556
Brake Booster Pressure Sensor Circuit Range/Performance
Generic
Vehicle Speed and Idle Control System
High severity
P0558
Brake Booster Pressure Sensor Circuit High Voltage
Generic
Vehicle Speed and Idle Control System
High severity
P0559
Brake Booster Pressure Sensor Circuit Intermittent
Generic
Vehicle Speed and Idle Control System
High severity
P0564
Cruise Control Multi-Function Input A Circuit
Generic
Vehicle Speed and Idle Control System
Low severity
P0566
Cruise Control Off Signal Malfunction
Generic
Vehicle Speed and Idle Control System
Low severity
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