GM Service Manual Online
For 1990-2009 cars only

Body Control Module (BCM)

Scan Tool Output Control

Additional Menu Selection

Description

Backup Lamps

Special Functions

The BCM actuates the backup lamps when you select ON. The backup lamps should illuminate until commanded OFF.

DRL

Special Functions

The BCM actuates the Daytime Running Lamps when you select ON. The headlamps should illuminate until commanded OFF.

Courtesy Lamp

Special Functions

The BCM actuates the interior lamp control you select ON. The foot well and courtesy lamps should illuminate until commanded OFF.

Low Beam Lamp

Special Functions

The BCM actuates the low beam headlamps when you select ON. The headlamps should illuminate until commanded OFF

High Beam Lamp

Special Functions

The BCM actuates the high beam headlamps when you select ON. The headlamps should illuminate until commanded OFF

Incandescent Dimming

Special Functions

The BCM activates or deactivates the Incandecent Dimming when commanded ON or OFF.

LED Dimming

Special Functions

The BCM activates or deactivates the LED Dimming when commanded ON or OFF.

Parking Lamps

Special Functions

The BCM actuates the park lamp relay when you select ON. The park lamps should illuminate until commanded OFF.

Front Fog Lamps

Special Functions

The BCM actuates the fog lamps when you select ON. The front fog lamps should illuminate until commanded OFF.

RF Turn Signal

Special Functions

The BCM actuates the right front turn signal when you select ON. The right front turn signal should remain on until commanded OFF.

LF Turn Signal

Special Functions

The BCM actuates the left front turn signal when you select ON. The left front turn signal should remain on until commanded OFF.

LR Turn Signal

Special Functions

The BCM actuates the left rear turn signal when you select ON. The left rear turn signal should remain on until commanded OFF.

RR Turn Signal

Special Functions

The BCM actuates the right rear turn signal when you select ON. The right rear turn signal should remain on until commanded OFF.