DTC B1A98-86: LIN Bus Circuit #1 - Signal invalid: Action
- Refer to the appropriate system wiring diagrams and check the rear door 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 door module