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, Hood Doors and Rear Compartment all Closed

CTD Status

Theft Data

Disarmed/Arm Delay/Armed/Alarm Active

Disarmed

Current CTD Trigger

Theft Data

None/Drvr. Door/Psgr. Door/LR Door/RR Door/Rear Closure/Hood/Ignition/Remote/Batt. Reconnect/Power Mode/Tamper

None

Door Key Cyl. Unlock Switch

Doors

Active/Inactive

Inactive

Driver Door Ajar Sw.

Doors

Door Closed/Door Ajar

Door Closed

Driver Identification

Theft Data

Driver 1/Driver 2/Driver 3/Driver 4/Unknown

Varies

Hood Closed Switch

Theft Data

Active/Inactive

Active

Hood Open Switch

Theft Data

Active/Inactive

Inactive

Left Rear Door Ajar Switch

Doors

Door Closed/Door Ajar

Door Closed

Passenger Door Ajar Sw.

Doors

Door Closed/Door Ajar

Door Closed

Rear Closure Ajar Sw.

Body Rear End

Active/Inactive

Inactive

Right Rear Door Ajar Switch

Doors

Door Closed/Door Ajar

Door Closed

Theft LED

Theft Data

On/Off

Off