GM Service Manual Online
For 1990-2009 cars only
Accessory Relay Command: The scan tool displays On/Off. The state of the accessory relay within the body control module (BCM).

Auto Door Locks Mode: The scan tool displays Enabled/Disabled. This is the state of the auto door locks Personalization function as programmed into the driver information center (DIC).

Auto Door Unlock Method: The scan tool displays Key/Park. This is the method in which the auto door unlock function is activated as programmed into the DIC.

Auto Door Unlock Mode: The scan tool displays None/Driver/All/Invalid. This is the state of the auto door unlock Personalization function as programmed into the DIC.

Battery Voltage: The scan tool displays 9.0-15.5 volts. The state of the battery voltage supplied to the BCM.

Door Ajar Switch: The scan tool displays Door Closed/Door Ajar. The passenger door ajar switch input to the BCM, where an open door is displayed as Door Ajar.

Door Cylinder Switch: The scan tool displays Idle/Lock/Unlock. The door cylinder switch input to the BCM, where a cylinder activation is displayed as either Lock or Unlock.

Door Lock Switch: The scan tool displays Idle/Lock/Unlock. The door lock switch input to the BCM, where a lock switch activation is displayed as either Lock or Unlock.

Door Lock Switch: The scan tool displays 9.0-15.5 volts. The state of the battery voltage at the door lock switch. When the switch is pressed, the voltage displayed drops.

Driver Door Ajar Switch: The scan tool displays Door Closed/Door Ajar. The driver door ajar switch input to the BCM, where an open door is displayed as Door Ajar.

Driver Door Lock Actuator Command: The scan tool displays Idle/Lock/Unlock/Invalid. The state of the driver door lock actuator output, where a driver door lock actuator activation is displayed as either Lock or Unlock.

Key Lock/Unlock Enable: The scan tool displays Enabled/Disabled. The state of the door cylinder lock Personalization function.

Passenger Doors Lock Actuator Command: The scan tool displays Idle/Lock/Unlock/Invalid. The state of the passenger door lock actuators outputs, where a passenger door lock actuator activation is displayed as either Lock or Unlock.

Trunk Ajar Switch: The scan tool displays Trunk Closed/Trunk Ajar. The scan tool displays Trunk Ajar when the trunk is open.

Trunk Release Solenoid: The scan tool displays On/Off. The scan tool momentarily displays On when the trunk release solenoid is commanded ON.

Trunk Release Status: The scan tool displays Enabled/Disabled. The scan tool will display the state of the trunk release.

Trunk Release Switch: The scan tool displays Active/Inactive. The scan tool displays active when the trunk release switch is depressed.