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
P06A9
Sensor Reference Voltage D Circuit Range/Performance
Generic
Computer Output Circuit
High severity
P06B6
Internal Control Module Knock Sensor Processor 1 Performance
Generic
Computer Output Circuit
High severity
P07A2
Transmission Friction Element A Performance/Stuck Off
Generic
Transmission System
High severity
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