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
P0135
O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1
Generic
Fuel and Air Metering
Medium severity
P0141
O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
Generic
Fuel and Air Metering
Medium severity
P0146
O2 Sensor Circuit No Activity Detected Bank 1 Sensor 3
Generic
Fuel and Air Metering
Medium severity
P0147
O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 3
Generic
Fuel and Air Metering
Medium severity
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