GM Service Manual Online
For 1990-2009 cars only

Body Control Module (BCM)

Scan Tool Output Control

Additional Menu Selections

Description

Brake to Shift Relay

Output Control

The BCM Commands the brake to shift relay OFF for 5 seconds, when you select Off. The transaxle can be shifted out of park without depressing the brake pedal

Seat Belt Telltale

Output Control

The BCM Commands the seat belt telltale ON for 5 seconds.

Rear Defogger

Output Control

The BCM Commands the rear defog relay ON for 5 seconds. The rear window defogger should be active for 5 seconds.

Theater Dimming 1

Output Control

The BCM illuminates the door courtesy lamps and the RH footwell courtesy lamp when you select On. The courtesy lamps should remain illuminated until they time out or are commanded Off.

Theater Dimming 2

Output Control

The BCM illuminates the overhead courtesy lamps and the LH footwell courtesy lamp when you select On. The courtesy lamps should remain illuminated until they time out or are commanded Off.

Inadvertent Power

Output Control

The BCM activates the inadvertent power control output which supplies voltage to the interior lighting system when you select On.

Heated Seat

Output Control

The BCM activates the heated seat function for 5 seconds when you select ON. The heated seat function should operate for 5 seconds.