Description And Operation: Operation: Notes

The lamps of the interior lighting system can be divided into general classifications based upon the circuit that controls their operation: The courtesy lamp circuit, the reading lamps circuit and the panel lamps dimmer circuit. In vehicles equipped with the ambient lighting package, the ambient lights are actually controlled by the courtesy lamp circuit as well as by dedicated ambient lighting outputs based upon an input from the ambient lighting thumbwheel of the dimmer module.

The lamps and the hard wired circuits between components related to the interior lighting system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information.