P2237-02 O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1 - General signal failure: Action
- Vehicle Conditions to enable DTC Logging strategy
- Drive the vehicle in a transient manor, including full load acceleration and overruns to ensure the oxygen sensor controller is fully exercised
- Prioritised Checks to Perform
- Refer to the appropriate SYSTEM WIRING DIAGRAMS information and check heated oxygen sensor circuit for short circuit to ground, short circuit to power, open circuit, high resistance
- Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
- Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest
- Check and install a new heated oxygen sensor as required