DTC B1222-23: Master Lock F/Unlock Switch - Signal stuck low: Action
- Refer to the applicable system wiring diagram(s) and check the master lock/unlock switch digital input circuits for short circuit to ground, open circuit, high resistance. Repair wiring harness as required, clear the DTC and retest the system
- If no wiring faults are present, check the center instrument panel switch pack master lock/unlock switch and replace as required. Clear DTC and retest