DTC B1B7D-87: Rear Air Distribution Actuator - Missing message: Action
- Refer to the appropriate system wiring diagrams and check the rear face/feet distribution motor power and ground circuits for open circuit, high resistance
- Refer to the appropriate system wiring diagrams and check the LIN circuit for short circuit to ground, short circuit to power, open circuit, high resistance
- Using JLR approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new rear face/feet distribution motor