Door Lock System Components
WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. 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:
- Driver Door Module (DDM)
- Passenger Door Module (PDM)
- Liftgate Module (LGM)
- Door lock relay
- Door unlock relay
- Body Control Module (BCM)
- Reversible door lock actuators in each of the doors
- LR/RR LOCKS 10A fuse (relay supply voltage)
- Door lock switches in driver and passenger doors (switches are integral components to the DDM and PDM)