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 check CAN communication between powertrain control module and diesel exhaust fluid heater control unit
- Electrical Cause
- Yes
- Mechanical Cause
- Yes
- Control module cavity
- Circuit reference CAN_L_3
- Circuit reference CAN_3_H
- Monitor Description
- Communication error between powertrain control module and diesel exhaust fluid heater control unit
- Prioritised List of Possible Causes
- The powertrain control module has not received the expected CAN signal from the diesel exhaust fluid heater control unit/diesel sub net CAN within the specified time interval
- Diesel exhaust fluid heater control unit/diesel sub net CAN circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Connector is disconnected, connector pin is backed out, connector pin corrosion