DTC P20BA-18: Reductant Heater "A" Control Circuit Performance - Circuit current below threshold: Action
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.
- Vehicle Conditions to enable DTC Logging Strategy
- DEF heater on
- Prioritized Checks to Perform
- Refer to the appropriate system wiring diagrams and check the diesel exhaust fluid line heater 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
- Check and install a new diesel exhaust fluid line heater as required
- Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest