Lighting and Horns: Description and Operation

The Front Door Handle Switches turn on the interior lights through the Multi-Function Alarm Module. When either front door is raised, its Front Door Handle Switch closes to ground an input to the module. The module then grounds the Courtesy Lights and the Dome Light to turn them on. The Rear Door Jamb Switches turn on the interior lights directly, without working through the Multi-Function Alarm Module.

The Interior Switch in the Headlight Switch Assembly also turns on the interior lights, independent of the door switches or the Multi-Function Alarm Module.

An interior lights-on delay is provided by the Multi-Function Alarm Module after a front door has been opened. The lights remain on for about 4 seconds, or until the Ignition Switch is turned ON.

Voltage is applied at all times through the CTSY Fuse to the Multi-Function Alarm Module, Cigar Lighter, and the Courtesy, Dome, Reading, and Luggage Compartment Lights. Voltage is also applied in RUN, BULB TEST, or START through the GAGES Fuse to the Multi-Function Alarm Module.