DTC B14D5-87: Rear Blower Controller - Missing message: Action
- Refer to the appropriate system wiring diagrams and check the rear blower control module power and ground circuits for open circuit, high resistance
- Refer to the appropriate system wiring diagrams and check the LIN bus circuit for short circuit to ground, short circuit to power, open circuit, high resistance
- Using the manufacturer approved diagnostic system, clear the DTCs and retest. If the fault persists, install a new rear blower control module