GM Service Manual Online
For 1990-2009 cars only

Scan Tool Output Control

Additional Menu Selection(s)

Description

Backup Lamp Relay Control

BCM/Special Functions/Exterior Lighting

The body control module (BCM) activates the backup lamps for 5 seconds when you select ON. This applies to vehicles equipped with automatic transmissions only.

Headlamp Motor Test

Headlamp Control Module/Special Functions

The headlamp control module moves the headlamp motors left for 5 seconds when you select LEFT, then centers the motors. The headlamp control module moves the headlamp motors right for 5 seconds when you select RIGHT, then centers the motors.

Stop Lamp Relay Control

BCM/Special Functions/Exterior Lighting

The BCM activates the stop lamps for 5 seconds when you select ON.