DTC B1A04-1A: Speaker #4 - Circuit resistance below threshold: Action
- Refer to the appropriate system wiring diagrams and check the front right door bass speaker circuit for short circuit. Using the manufacturer approved diagnostic system, clear the DTCs and retest. If the fault persists, install a new front right door bass speaker
- Using the manufacturer approved diagnostic system, clear the DTCs and retest. If the fault persists, install a new audio amplifier module