Oxygen Sensor Codes
Browse all OBD2 fault codes in this category.
P0135 – O2 Sensor Heater Circuit (Bank 1 Sensor 1)
View Details →P0138 – O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
View Details →P0141 – O2 Sensor Heater Circuit (Bank 1 Sensor 2)
View Details →P0155 – O2 Sensor Heater Circuit (Bank 2 Sensor 1)
View Details →P0161 – O2 Sensor Heater Circuit (Bank 2 Sensor 2)
View Details →P0420 – Catalyst System Efficiency Below Threshold (Bank 1)
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