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
P1289
Cylinder Head Temperature Sensor Signal Greater Than Self-Test Range
Audi
Injector Circuit
High severity
P1392
Camshaft Position Sensor Bank 2 Open Circuit/Short To Positive
Audi
Ignition System
High severity
P1429
Brake System Vacuum Pump Activation Open Circuit
Audi
Vehicle Speed and Idle Control System
Low severity
P1433
Secondary Air Injection Pump Relay Circuit Open
Audi
Auxiliary Emissions Control
Medium severity
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