GM Service Manual Online
For 1990-2009 cars only

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition On/Engine Off

Washer Switch

Inputs

On/Off

Off

Wiper Delay Input

Data

volts

0

Wiper Park Switch

Inputs

Active/Inactive

Active

Wiper Relay Cmd.

Outputs

On/Off

Off