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
- To monitor diesel exhaust fluid heater control unit
- Electrical Cause
- Yes
- Mechanical Cause
- No
- Control Module Cavity
- Circuit reference B_D_CANH3
- Circuit reference B_D_CANL3
- Monitor Description
- Diesel exhaust fluid heater control unit over temperature
- Prioritised List of Possible Causes
- The powertrain control module detected an internal temperature above the expected range
- Diesel exhaust fluid heater control unit circuit short circuit to power
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- Diesel exhaust fluid heater control unit failure