Description & Operation: Notes

WARNING: Vehicles are equipped with air bag supplemental restraint system. Before attempting any repairs involving steering column, instrument panel or related components, see SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM in appropriate AIR BAG RESTRAINT SYSTEMS article.

NOTE: On some vehicles, power door lock system is integrated with Remote Keyless Entry (RKE) system. For information on RKE, see appropriate REMOTE KEYLESS ENTRY SYSTEMS article.

When either door lock switch is pressed in power door lock system, all doors lock or unlock in unison. Each lock can also be operated manually from locking knob. Locks are operated by reversible actuators that receive voltage from door lock relay assembly's two built-in relays. Relays energize actuators by applying voltage to one terminal and ground to other terminal. To reverse actuators, polarity to terminals is reversed. Door lock switches are usually closed briefly. If door lock switches are held closed, a circuit breaker in each actuator will open to protect against damage. Circuit breaker resets only after voltage is removed from actuator.

Door lock switches are usually closed momentarily. If switches are held closed, a circuit breaker in each actuator will open to protect against damage. Circuit breaker resets only after voltage is removed from actuator.