SCA Assembly

SCA Assembly
Prior to this change, a microswitch located in the upper lift-gate was used to provide the status of the lift-gate to the GM3 body electronics control module. For the 10/03 face lift, the microswitch has been replaced with Hall Sensors for greater reliability. The hall sensors report the status of the lift-gate to the GM 3. The GM3 responds to the status signals and provides the outputs to the relays that control the SCA motor. The GM3 also uses these input signals to control the upper hatch luggage compartment lights and to trigger the DWA anti-theft alarm.