Door Lock System Components
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
The power door lock system consists of the following components:
- The driver door module (DDM)
- The passenger door module (PDM)
- The body control module (BCM)
- The rear door lock switch
- The door lock relay
- The door unlock relay
- The reversible door lock actuators in each of the doors
- LOCKS 20A fuse (relay supply voltage)