Possible Causes
WARNING: This page is about a different car, the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, and 2016 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.
- Purpose of the DTC
- HO2S heater control circuit - sensor 1 - open circuit
- Electrical Cause
- Yes
- Mechanical Cause
- No
- Control module cavity
- Circuit reference I_A_LSCP
- Circuit reference G_R_LSVG
- Monitor Description
- Voltage within range
- Prioritised List of Possible Causes
- The value of the signal measured by the powertrain control module is not plausible given the operating conditions
- Heated oxygen sensor heater circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- Heated oxygen sensor failure