GM Service Manual Online
For 1990-2009 cars only

Body Control Module (BCM)

Scan Tool Output Control

Additional Menu Selection(s)

Description

Body Control Module

High Beams

The BCM activates the beam select relay illuminating the high beam headlamps and high beam indicator when you select ON while the low beam headlamps are on. The high beam headlamps and indicator remain illuminated for 5 seconds.

Body Control Module

Headlamps

The BCM activates the headlamp relay illuminating the low beam headlamps when you select ON. The low beam headlamps remain illuminated for 5 seconds.

Body Control Module

Parking Lamps

The BCM activates the park lamp relay illuminating the parking lamps when you select ON. The parking lamps remain illuminated for 5 seconds.

Body Control Module

Courtesy Lamps

The BCM activates the interior courtesy lamps when you select ON. The interior courtesy lamps remain illuminated for 5 seconds.

Body Control Module

Front Fog Lamps

The BCM activates the front fog lamp relay illuminating the front fog lamps when you select ON. The front fog lamps remain illuminated for 5 seconds.

Body Control Module

LF Turn Lamp/DRL

The BCM activates the left front turn/DRL lamp when you select ON. The left front turn/DRL lamp remains activated until commanded OFF.

Body Control Module

LR Stop/Turn Signal Lamp

The BCM activates the left rear stop/turn signal lamp and left turn indicator when you select ON. The left rear stop/turn signal lamp and indicator remain activated until commanded OFF.

Body Control Module

RF Turn Lamp/DRL

The BCM activates the right front turn/DRL lamp when you select ON. The right front turn/DRL lamp remains activated until commanded OFF.

Body Control Module

RR Stop/Turn Signal Lamp

The BCM activates the right rear stop/turn signal lamp and right turn indicator when you select ON. The right rear stop/turn signal lamp and indicator remain activated until commanded OFF.

Body Control Module

Inadvertent Power 1

The BCM disables the inadvertent power supply circuit when you select OFF. The inadvertent power supply circuit remains disabled for 5 seconds.