GM Service Manual Online
For 1990-2009 cars only

The Body Control Module (BCM) scan tool data definitions are a brief description of each of the vehicle access related parameters displayed within the scan tool data displays for the BCM.

Door Lock Requestor: This parameter represents the door lock function responsible for a door lock activation.

Drvr. Door Unlock Cmd.: When the BCM sends a driver door unlock command to the DDS the parameter will be On.

Left Rear Door Ajar Sw.: This parameter indicates the current status of the door ajar switch input to the BCM.

Rear Doors Lock Cmd.: This parameter indicates the commanded state of the rear door lock relay control circuit.

Rear Doors Unlock Cmd.: This parameter indicates the commanded state of the rear door unlock relay control circuit.

Right Rear Door Ajar Sw.: This parameter indicates the current status of the door ajar switch input to the BCM.

The Driver Door Switch (DDS) scan tool data definitions are a brief description of each of the vehicle access related parameters displayed within the scan tool data displays for the DDS.

Door Lock Actuator Cmd.: This parameter indicates the commanded state of the door lock actuator control circuits.

Door Key Cyl. Unlock Switch: This parameter indicates the current status of the door cylinder unlock switch.

Driver Door Ajar Sw.: This parameter indicates the current status of the door ajar switch input to the DDS.

Driver Door Open Sw.: This parameter indicates the current status of the door open switch input to the DDS.

The Passenger Door Switch (PDS) scan tool data definitions are a brief description of each of the vehicle access related parameters displayed within the scan tool data displays for the PDS.

Door Lock Actuator Cmd.: This parameter indicates the commanded state of the door lock actuator control circuits.

Door Key Cyl. Unlock Switch: 

Passenger Door Ajar Sw.: This parameter indicates the current status of the door ajar switch input to the PDS.

Passenger Door Open Sw.: This parameter indicates the current status of the door open switch input to the PDS.