The fuel door release system consists of the following
components:
• | Fuel door release switch |
• | Fuel door release relay |
• | Body Control Module (BCM) |
When the fuel door release switch is operated, the fuel door release
switch input is grounded in the instrument cluster. The instrument cluster
will send a class 2 message to the body control module (BCM). The BCM will
ground the coil side of the fuel door release relay. When the coil side of
the fuel door release relay is grounded the switch side contacts close and
energize the fuel door release actuator. The fuel door will release.