O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
| Code | P0135 |
| Description | O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) |
| Possible Causes | The heater circuit for the oxygen sensor has failed. |
| System | Fuel and Air Metering |
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1). This diagnostic trouble code (DTC) is stored when the vehicle's onboard computer detects an issue with the fuel and air metering.
P = Powertrain code
0 = Generic (SAE standard)