Lamps/Lighting - Interior
The interior lighting system for this vehicle includes incandescent lighting on two separate circuits: the dome/courtesy lamp circuit and the panel lamps dimmer circuit. The lamps on the dome/courtesy circuit include:
- Cargo Lamp (5) - An available cargo lamp with an integral lens-actuated courtesy disable switch is located in the headliner near the rear roof header and is activated automatically whenever the rear flip-up glass is opened to illuminate the rear cargo area of the vehicle.
- Courtesy Lamps (1) - Available courtesy lamps are located below both the right and left side of the instrument panel, and are controlled by the courtesy lamp circuit.
- Front Dome Lamp (2) - A standard front dome lamp that does not include an on-off switch is located in the headliner near the windshield header, and is controlled by the courtesy lamp circuit.
- Reading Lamps (2) - Available front seat driver side and passenger side reading lamps located in the headliner near the windshield header are controlled by both the courtesy lamp circuit and independent lens-actuated switches.
- Rear Dome Lamp (4) - An available rear dome lamp is located in the center of the headliner above the rear seat and is controlled by both the courtesy lamp circuit and an independent lens-actuated switch.
- Vanity Lamps (3) - An optional single-intensity vanity lamp is located on each side of a covered mirror on both the right and left sun visors. These lamps are controlled by an integral vanity mirror cover-actuated switch on the courtesy lamp circuit.
Most controls on the instrument panel and elsewhere on the interior of the vehicle are illuminated by the panel lamps dimmer circuit for night visibility. Some have miniature incandescent bulbs or Light-Emitting Diode (LED) units that are soldered to internal circuit boards and are not serviceable. The replaceable incandescent bulbs or bulb/bulb holder units in this vehicle include:
- Ash Receiver Lamp - An available ash receiver lamp is located above the ash receiver housing behind the instrument panel center bezel.
- Compass Mini-Trip Control Illumination Lamps - The optional Compass Mini-Trip Computer (CMTC) has three replaceable control illumination bulb/bulb holder units on its circuit board that are controlled by the panel lamps dimmer circuit.
- Heater-Air Conditioner Control Illumination Lamps - The heater-air conditioner control has two replaceable control illumination bulb/bulb holder units on its circuit board that are controlled by the panel lamps dimmer circuit.
- Instrument Cluster Illumination Lamps - The ElectroMechanical Instrument Cluster (EMIC) has nine replaceable general illumination bulb/bulb holder units on its circuit board that are controlled by the panel lamps dimmer circuit. Refer to INSTRUMENT CLUSTER - DESCRIPTION .
- Transmission Range Indicator Illumination Lamp - Vehicles equipped with an automatic transmission have an illuminated transmission range indicator integral to the console mounted gearshift mechanism. Illumination is provided by a replaceable incandescent bulb that is controlled by the panel lamps dimmer circuit.
Other components of the interior lighting system for this vehicle include:
- Body Control Module - The Body Control Module (BCM) is located on the Junction Block (JB) under the driver side outboard end of the instrument panel. Refer to BODY CONTROL MODULE - DESCRIPTION .
- Door Ajar Switches - A door ajar switch is integral to the door latch mechanism of each front and rear door.
- Flip-Up Glass Ajar Switch - A flip-up glass ajar switch is integral to the flip-up glass latch mechanism on the top of the tailgate inner panel.
- Multi-Function Switch - The multi-function switch is located on the top of the steering column, just below the steering wheel. The multi-function switch includes a left and a right control stalk. The left control stalk is dedicated to providing almost all of the driver controls for both the exterior and interior lighting systems. Refer to MULTI-FUNCTION SWITCH - DESCRIPTION .
- Tailgate Ajar Switch - A tailgate ajar switch is integral to the latch mechanism of the tailgate.
Hard wired circuitry connects the interior lighting system components to the electrical system of the vehicle. These hard wired circuits are integral to several wire harnesses, which are routed throughout the vehicle and retained by many different methods. These circuits may be connected to each other, to the vehicle electrical system and to the interior lighting components through the use of a combination of soldered splices, splice block connectors, and many different types of wire harness terminal connectors and insulators. Refer to SYSTEM WIRING DIAGRAMS article. The wiring information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin-out and location views for the various wire harness connectors, splices and grounds.