GM Service Manual Online
For 1990-2009 cars only
Table 1: Body Control Module (BCM)
Table 2: Driver Door Switch (DDS)
Table 3: Liftgate Module (LGM)
Table 4: Passenger Door Switch (PDS)

Body Control Module (BCM)

Scan Tool Output Control

Additional Menu Selections

Description

Special Functions/Doors

Lock Rear Doors

When ON is selected, the body control module (BCM) locks the rear doors.

Special Functions/Doors

Unlock Rear Doors

When ON is selected, the body control module (BCM) unlocks the rear doors.

Special Functions/Miscellaneous Test

Trunk Release

When ON is selected, the body control module (BCM) activates the rear hatch release.

Driver Door Switch (DDS)

Scan Tool Output Control

Additional Menu Selections

Description

Special Functions/Door Lock Test

Door Lock/Unlock

When Lock is selected, the driver door module (DDM) momentarily pulses the driver door lock motor, locking the driver door. When Unlock is selected, the DDM momentarily pulses the driver door unlock motor, unlocking the driver door.

Special Functions/Door Lock Test

Door Deadbolt Lock/Unlock

When Lock Deadbolt is selected, the driver door module (DDM) momentarily pulses the driver door deadbolt motor, locking the driver door. When Unlock Deadbolt is selected, the DDM momentarily pulses the driver door deadbolt motor, unlocking the driver door.

Liftgate Module (LGM)

Scan Tool Output Control

Additional Menu Selections

Description

Special Functions

LGM Open/Close Test

When OPEN is selected, the LGM will command the power liftgate open. When CLOSE is selected the LGM will command the power liftgate closed.

Passenger Door Switch (PDS)

Scan Tool Output Control

Additional Menu Selections

Description

Special Functions/Door Lock Test

Door Lock/Unlock

When Lock is selected, the passenger door module (PDM) momentarily pulses the front passenger door lock motor, locking the front passenger door. When Unlock is selected, the PDM momentarily pulses the front passenger door unlock motor, unlocking the front passenger door.

Special Functions/Door Lock Test

Door Deadbolt Lock/Unlock

When Lock Deadbolt is selected, the passenger door module (PDM) momentarily pulses the front passenger door deadbolt motor, locking the front passenger door. When Unlock Deadbolt is selected, the PDM momentarily pulses the front passenger door deadbolt motor, unlocking the front passenger door.