GM Service Manual Online
For 1990-2009 cars only

Scan Tool Output Control

Additional Menu Selection

Description

Access Relay Output Status

Accessory Relay Control

The BCM activates the accessory relay when you select ON. The accessory relay should remain On for 30 seconds.

Driver Door Unlock

Door Lock Test

The BCM pulses the driver door lock actuator when you select ON. The driver door should unlock.

Passenger Door Unlock

Door Lock Test

The BCM pulses the passenger door lock actuators when you select ON. All of the doors, except the driver door, should unlock.

Lock All Doors

Door Lock Test

The BCM pulses all of the door lock actuators when you select ON. All of the doors should lock.

Rear Defog Relay Command

Defogger Control

The BCM activates the rear defog relay when you select ON. The rear defog relay should remain On for 60 seconds.