GM Service Manual Online
For 1990-2009 cars only

Body Control Module (BCM)

Scan Tool Output Control

Additional Menu Selection

Description

Headlamps

Special Functions

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

Interior Lamps

Special Functions

The BCM actuates the interior lamp control you select ON. The foot well and courtesy lamps 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

Parking Lamps

Special Functions

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

Backup Lamps

Special Functions

The BCM actuates the backup lamps when you select ON. The backup 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.

Inadvertent Power Relay

Special Functions

The BCM actuates the inadvertent power relay when you select ON. The inadvertent power relay should remain on 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.