GM Service Manual Online
For 1990-2009 cars only

Body Control Module (BCM)

Scan Tool Output Control

Additional Menu Selection(s)

Description

Wiper Test

Front Wiper Relay

The wiper switch has to be in the Low position for this output control to function. The BCM actuates the Wiper relay when ON is selected. The front wiper should operate at low speed.

Wiper Test

Rear Wiper Relay

The wiper switch has to be in the Low position for this output control to function. The BCM actuates the Wiper relay when ON is selected. The rear wiper should operate at low speed.