Car Fault Codes
OBD-II trouble codes explained: meaning, causes, symptoms, fixes and typical repair cost.
Category
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Fuel & air
Ignition & misfire
Emissions & exhaust
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Engine computer & electrical
Transmission
Hybrid & EV
Network
Body
Chassis & brakes
Showing 1–24 of 122 codes
P0030
Heated Oxygen Sensor (HO2S) Heater Control Circuit (Bank 1 Sensor 1)
P0031
Heated Oxygen Sensor (HO2S) Heater Control Circuit Low (Bank 1 Sensor 1)
P0032
Heated Oxygen Sensor (HO2S) Heater Control Circuit High (Bank 1 Sensor 1)
P0036
Heated Oxygen Sensor (HO2S) Heater Control Circuit (Bank 1 Sensor 2)
P0037
Heated Oxygen Sensor (HO2S) Heater Control Circuit Low (Bank 1 Sensor 2)
P0038
Heated Oxygen Sensor (HO2S) Heater Control Circuit High (Bank 1 Sensor 2)
P0050
Heated Oxygen Sensor (HO2S) Heater Control Circuit (Bank 2 Sensor 1)
P0051
Heated Oxygen Sensor (HO2S) Heater Control Circuit Low (Bank 2 Sensor 1)
P0052
Heated Oxygen Sensor (HO2S) Heater Control Circuit High (Bank 2 Sensor 1)
P0056
Heated Oxygen Sensor (HO2S) Heater Control Circuit (Bank 2 Sensor 2)
P0057
Heated Oxygen Sensor (HO2S) Heater Control Circuit Low (Bank 2 Sensor 2)
P0058
Heated Oxygen Sensor (HO2S) Heater Control Circuit High (Bank 2 Sensor 2)
P0130
O2 Sensor Circuit (Bank 1 Sensor 1)
P0131
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
P0132
O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
P0133
O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)
P0134
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
P0135
O2 Sensor Heater Circuit (Bank 1 Sensor 1)
P0136
O2 Sensor Circuit (Bank 1 Sensor 2)
P0137
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)
P0138
O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
P0139
O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)
P0140
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
P0141
O2 Sensor Heater Circuit (Bank 1 Sensor 2)