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.

Battery Voltage Signal

BCM, Data Display, Power Mode

0-15 volts

14 volts

Shift Lock Solenoid Command

BCM, Data Display, Chassis Data

Lock/Unlock

Lock