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 handle is raised, its Front Door Handle Switch closes, grounding an input to the module. The module then grounds the Courtesy Lights and Header 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 Panel Dimmer Switch in the Turn/Hazard-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 Multifunction Alarm Module after a front door has been opened. The lights remain on for about 4 seconds or until the Ignition Switch is turned "RUN."

Voltage is applied at all times through the CTSY Fuse to the Multi-function Alarm Module and to the Courtesy, Header, Vanity Mirror, Reading and Luggage Compartment Lights. With the Ignition Switch in "RUN," "BULB TEST" or "START," voltage is applied to the Multi-function Alarm Module through the GAGES Fuse. Voltage is also applied at all times through the CLK-CIG Fuse to the Cigar Lighter.