DTC U02A5-87: Lost Communication with Reductant Heater Control Module - Missing message: Action
WARNING: This page is about a different car, the 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
- Vehicle Conditions to Enable DTC Logging Strategy
- Engine running
- Prioritized Checks to Perform
- Refer to the electrical circuit diagrams and check the diesel exhaust fluid heater control unit/diesel sub net CAN 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 Diagnostic Trouble Code(s) and retest