Trunk / Liftgate Switch: Description and Operation

UPPER TAILGATE INTERNAL RELEASE SWITCH

The internal upper tailgate release switch is a non latching push switch installed on the center console. The switch allows the tailgate to be opened from inside the vehicle. When the switch is pressed a ground is connected to the GEM (generic electronic module). The GEM (generic electronic module) only responds to the input when the CLS system is unlocked and the vehicle is stationary.

UPPER TAILGATE EXTERNAL RELEASE SWITCH

The external upper tailgate release switch is a microswitch installed in the license plate lamp housing in the bottom edge of the upper tailgate. The switch is operated by a lever connected to a rubber covered plate set into the outside surface of the license plate lamp housing. When the switch is activated it connects a ground to the GEM (generic electronic module). The GEM (generic electronic module) only responds to the input when the CLS system is unlocked and the vehicle is stationary.

LOWER TAILGATE RELEASE SWITCH

The lower tailgate release switch is a non latching push switch installed under a rubber cover in the top edge of the lower tailgate. When the switch is pressed, a battery voltage signal is connected to the GEM (generic electronic module). The GEM (generic electronic module) only responds to the input when the upper tailgate is unlatched and the vehicle is stationary.