GM Service Manual Online
For 1990-2009 cars only

Body Control Module (BCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition On/Engine Off

Rain Sensor Signal

Wiper/Washer

Off/Low Speed/High Speed/Sensor Failed/Ckt. Fault Low/Ckt. Fault High/No Glass/No BCM Data

Off

Washer Relay Cmd.

Wiper/Washer

On/Off

Off

Windshield Washer Switch

Wiper/Washer

Active/Inactive

Inactive

Windshield Wiper Switch

Wiper/Washer

Off/Intermittent/Low/High/Switch Fault

Off

Wiper Delay Setting

Wiper/Washer

0,1,2,3,4,5

0

Wiper High Speed Relay

Wiper/Washer

On/Off

Off

Wiper High Speed Switch

Wiper/Washer

Active/Inactive

Inactive

Wiper Park Switch

Wiper/Washer

Active/Inactive

Active

Wiper Relay Cmd.

Wiper/Washer

On/Off

Off