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

Arming Status

Theft Information

Active/Inactive

Inactive

Content Theft Mode

Theft Information

Ignition On/Arm Pending/Standby/Sim Arm Pend/Trunk Open/Unlocked/Open/Locked/Ignition Lock/Sim Armed/Armed/Warn Away/Alarm/Audible Only

Ignition On

CTD Status

Theft Information

Disarmed/Armed

Disarmed

Door Ajar Switch

Keyless/Remote Start Data

Door Closed/Door Ajar

Door Closed

Driver Door Ajar Switch

Keyless/Remote Start Data

Door Closed/Door Ajar

Door Closed

Horn Relay Command

Theft Information

On/Off

Off

Security Indicator Command

Theft Information

On/Off

Off

Trunk Open Status

Theft Information

Open/Closed

Closed