Power Door Lock Switch: Description and Operation

POWER LOCK SWITCH
The power lock system can be controlled by a two- way momentary switch mounted in a receptacle on the back of the mirror flag trim bezel of each front door. Only the switch paddle is visible on the trim bezel. The power lock switch controls battery feed signals to the lock and unlock sense inputs of the power lock and Remote Keyless Entry (RKE) module on vehicles without the optional Vehicle Theft Security System (VTSS), or of the Central Timer Module (CTM) on vehicles with the VTSS. The relays that are integral to the power lock and RKE module or the CTM then direct the correct battery and ground feeds to the power lock motors.

The power lock switches cannot be repaired and, if faulty or damaged, the switch unit must be replaced.

The power lock switches are hard wired in parallel between battery current and the lock and unlock sense inputs to the power lock and Remote Keyless Entry (RKE) module on vehicles without the optional Vehicle Theft Security System (VTSS), or to the Central Timer Module (CTM) on vehicles with the VTSS. The power lock and RKE module or the CTM then controls the proper battery current and ground feeds to the individual power lock motors to lock or unlock the door latches.