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, with the engine OFF. Transmission shift lever in the PARK position.

Brake Switch

Inputs

ON/OFF

OFF

Brake to Shift Lamp Out

Outputs

ON/OFF

ON

Park Position Input

Inputs

ON/OFF

ON