GM Service Manual Online
For 1990-2009 cars only

Body Control Module

Scan Tool Output Control

Additional Menu Selection(s)

Description

Door Lock Test

Driver Door Unlock

The BCM actuates the driver door unlock relay when you select ON. Driver door should unlock.

Door Lock Test

Rear Door Lock/Unlock

The BCM acuates the door lock relay when you select lock. All doors should lock. The BCM actuates the passenger door unlock relay when you select unlock. All doors except the driver door and cargo door should unlock.

Door Lock Test

Cargo Door Unlock

The BCM actuates the cargo door unlock relay when you select ON. Cargo door should unlock.