DTC B1085-87: Defroster Damper Motor - Missing message: Action
- Refer to the electrical circuit diagrams and check the demist distribution motor power and ground circuits for open circuit, high resistance
- Refer to the electrical circuit diagrams and check the LIN circuit for short circuit to ground, short circuit to power, open circuit, high resistance
- Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, perform a hard ECU reset, clear DTCs and test again. If the problem persists, install a new demist distribution motor