GM Service Manual Online
For 1990-2009 cars only

Body Control Module (BCM)

Scan Tool Output Control

Additional Menu Selection(s)

Description

Wiper

Miscellaneous Test

The Wiper/Washer switch has to be in the off position for this output control to function. The BCM actuates the Wiper relay when you select ON. The front wipers should operate in intermittent mode.