GM Service Manual Online
For 1990-2009 cars only

Access Panel System Components

The access panel system consists of the following components:

    • Left front access panel
    • Left rear access panel
    • Right rear access panel
    • Access panel relays for each access panel
    • Two access panel release actuators for each access panel
    • Body control module (BCM)
    • Remote control door lock receiver
    • Panel actuator fuse - 15-amp

Access Panel System Controls

The access panel will only release when the vehicle is in PARK and are disabled when the vehicle is out of park.

The access panels are control by using the keyless entry system. The left front panel is released by pressing the unlock button on the key FOB twice. The first push will unlock all doors. The left rear and right rear panels are released by pressing the appropriate button on the key FOB.

Access Panel System Operation

The access panel system receives battery voltage at all times through the PANEL ACTUATOR fuse.

When the left rear access panel button on the key FOB is pressed the BCM will ground the coil side of the left rear access panel relay. That energizes the relay and the left rear access panel actuator control circuit will supply battery voltage to the left rear access panel actuators. Since the left rear access panel actuators receive a constant ground they will release the left rear access panel.

The remainder of the access panels functions operate in the same manner as described above.