DTC B1412-09: Quiescent Relay Box - Component failures: Action
- Refer to the appropriate system wiring diagrams and check the passenger junction box quiescent current relay circuit(s) for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
- Refer to the appropriate system wiring diagrams and check the rear junction box quiescent current relay circuit(s) for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
- 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. Repair the wiring harness as necessary
- Using JLR approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new passenger junction box
- Using JLR approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new rear junction box