General Information

The power door lock system locks or unlocks all doors with the actuation of a single door lock switch. Power is available at all times from the DOOR LOCK fuse through CKT 1240 to the following components:
^ The door lock relay.
^ The door unlock relay.

Both relays are grounded through CKT 150 at G201. Each door lock switch has two contacts. When the upper portion of the door lock switch is depressed in order to unlock the doors, one contact closes in order to apply voltage to CKT 682. The switch is an input to the BCM which energizes the unlock relay coil. The relay switch contacts then close in order to apply voltage to CKT 294. CKT 294 applies voltage to all the door lock motors, which are grounded through the following components:
^ CKT 295
^ The normally closed contacts of the door lock relay

When the lower portion of the door lock switch is depressed in order to lock the doors, the other switch contact closes in order to apply a ground to CKT 682. The switch is an input to the BCM which energizes the lock relay coil. Since the coil in the relay is grounded at all times through CKT 150 and G201, the coil is energized. The relay switch contacts then close in order to apply voltage to CKT 295. CKT 295 applies voltage to all the door lock motors which are grounded through the following components:
^ CKT 294
^ The normally closed contacts of the door unlock relay