GM Service Manual Online
For 1990-2009 cars only

Scan Tool Data List Except Holden

Intelligent Switching Unit (ISU)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Driver Door Switch

Central Locking

Released/ Applied

Applied

Door Switch

Central Locking

Open/Closed

Closed

Tamper Status

Central Locking

Yes/No

Yes/No

Window Down Motor

Miscellaneous Inputs

Active/Inactive

Inactive

Window Up Motor

Miscellaneous Inputs

Active/Inactive

Inactive