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 UNLOCK. The driver door should unlock.

The BCM actuates the door lock relay when you select LOCK. All doors and liftgate should lock.

Door Lock Test

Passenger Door Unlock

The BCM actuates the door unlock relay when you select UNLOCK. All passenger doors and liftgate should unlock.

The BCM actuates the door lock relay when you select LOCK. All doors and liftgate should lock.