GM Service Manual Online
For 1990-2009 cars only

Body Control Module (BCM)

Scan Tool Output Control

Additional Menu Selection(s)

Description

DRL Parklamps

Special Functions, Output Control, Light Test

The body control module (BCM) actuates the daytime running lamp parklamp relay when commanded ON with the scan tool soft key. The parklamps will illuminate until commanded OFF with the scan tool soft key.

Horn

Special Functions, Output Control, Miscellaneous Test

The body control module (BCM) actuates the horn relay when commanded ON with the scan tool soft key. The horn will sound for 5 seconds.

Backup Lamps

Special Functions, Output Control, Light Test

The body control module (BCM) actuates the backup lamps relay when commanded ON with the scan tool soft key. The backup lamps will illuminate until commanded OFF with the scan tool soft key.