DTC B1A12-13: Speaker #12 - Circuit open: Action
- Refer to the appropriate system wiring diagrams and check the sub-woofer 2 circuit for open circuit, high resistance. Using the manufacturer approved diagnostic system, clear the DTCs and retest. If the fault persists, install a new subwoofer
- Using the manufacturer approved diagnostic system, clear the DTCs and retest. If the fault persists, install a new audio amplifier module