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, Engine OFF

Trunk Ajar Switch

BCM

Trunk Closed/Trunk Ajar

Trunk Closed

Trunk Key Cylinder Switch

BCM

Active/Inactive

Inactive

LF Door Open Switch

BCM

Key Off/Door Ajar

Key Off

LF Door Ajar Switch

BCM

Door Closed/Ajar

Door Closed

RF Door Open Switch

BCM

Key Off/Door Ajar

Door Ajar

RF Door Ajar Switch

BCM

Door Closed/Ajar

Door Closed

Content Theft System State

BCM

Disabled/Intent to Arm/Closed Door Wait/Arm Simulate/Trunk Accessed/Arm Disabled/Triggers Active/Triggers Inactive/Arm Delay/Simulated Armed/Per-Alarm/Alarm Siren/Alarm Visible

Disabled

Content Theft Previous

BCM

Active/Inactive

Inactive