Door Lock Actuators

The power door lock actuators receive their power from the door modules. The door modules apply battery voltage of the correct polarity to their respective door lock motors when any door lock switch is operated. This drives the door lock lever in or out in order to lock or unlock the door. The rear doors operate in the same way except they do not have Unlock capability when operated from the rear door lock switches. The power door lock switches are generally closed for just a moment. If the power door lock switches are held closed for too long, an electronic circuit breaker in each actuator will open to protect the motor against damage and a code will be set. The circuit breakers have Positive Temperature Coefficients (PTC) and will reset automatically when voltage is removed from the actuator. When either the left or right front power door lock switch is activated, all of the doors are locked or unlocked in unison. When either the left or right rear power door lock switch is activated, all the doors can be locked in unison, but not unlocked. Each door lock actuator assembly contains a manual door lock lever. The driver door also has a key Cylinder Unlock Switch wired directly to the driver door module that requests locking and unlocking functions from the RIM when activated. When the driver door key cylinder is turned counter clockwise and held in that position for longer than 3 Seconds, all doors will unlock. Key locks and manual lock levers will still work if electrical power is lost.