DTC B1412-09: Quiescent Relay Box - Component failures: Action
- Refer to the appropriate system wiring diagrams and check the quiescent current 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 quiescent current control module