GM Service Manual Online
For 1990-2009 cars only

Body Control Module (BCM)

Scan Tool Output Control

Additional Menu Selection(s)

Description

Miscellaneous Test

Wiper High Speed Relay

The BCM will command the WIPER HIGH PCB relay ON, activating the high speed wiper.

Miscellaneous Test

Wiper Relay

The BCM will command the WIPER PCB relay ON, activating the low speed wiper.

Miscellaneous Test

Wiper Washer Motor

The BCM will command the FRT WASHER PCB relay ON, activating the washer pump.