GM Service Manual Online
For 1990-2009 cars only

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition On/Engine Off

Accessory

BCM Data

On/Off

On

Battery Voltage

BCM Data

Volts

12.0 Volts

Driver Door Ajar Sw.

Lamp Status

On/Off

Off

Ignition 1

BCM Data

On/Off

On

Key In Ignition

BCM Data

On/Off

On

Passenger Door Ajar Sw.

Lamp Status

On/Off

Off