DTC B1222-13: Master Lock/Unlock Switch - Circuit open: Action
- Refer to the applicable system wiring diagram(s) and check the master lock/unlock switch digital input circuits for 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