Content Theft Deterrent (CTD) Description and Operation: Inputs
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 BCM monitors directly or serial data communication the following inputs:
- Driver and passenger door ajar switches from the DDM and PDM through the serial data circuit to the BCM
- Driver and passenger rear door ajar switches
- Driver and passenger power door lock/unlock switches from the serial data circuit from driver or passenger door module
- Rear compartment ajar switch through the serial data circuit from the liftgate module
- Transmitter LOCK/UNLOCK buttons (internal function of the LGM)
- Passlock™ Status (the BCM uses the passlock™ status for disarming the system or silencing and alarm when the correct key is used)