Interior Lighting - Description
DESCRIPTION
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 (3) - A standard equipment cargo lamp is located in the headliner above the cargo area near the upper liftgate opening header at the back of the vehicle and is controlled by the courtesy lamp circuit.
- Cargo Lamp with Flashlight (3) - An optional equipment cargo lamp is located in the headliner above the cargo area near the upper liftgate opening header at the back of the vehicle and is controlled by the courtesy lamp circuit. This lamp includes a removable twin Light Emitting Diode (LED) flashlight powered by rechargeable lithium batteries.
- Front Dome Lamp (1) - A standard equipment front dome lamp is located on the headliner above the instrument panel near the upper windshield opening header and is controlled by the courtesy lamp circuit.
- Front Dome/Reading Lamps (1) - Optional front seat driver side and passenger side dome/reading lamps located on the headliner above the instrument panel near the upper windshield header are controlled by both the courtesy lamp circuit and independent push button switches adjacent to each lamp.
- Rear Dome Lamp (2) - A rear dome lamp is optional equipment on vehicles manufactured for domestic markets. This lamp is located near the center of the headliner over the rear seating area and is controlled by the courtesy lamp circuit. On vehicles manufactured for certain export markets where an intrusion system is a required feature of the Vehicle Theft Security System (VTSS), a rear dome lamp is located near the center of the headliner over the rear seating area. This dome lamp houses an integral Intrusion Transceiver Module (ITM) and is controlled by the courtesy lamp circuit.
Most controls on the instrument panel and elsewhere in the interior of the vehicle are illuminated by the panel lamps dimmer circuit for night visibility. All except the automatic transmission gear selector bezel lamp have miniature incandescent bulbs, Light-Emitting Diode (LED) units or a combination of the two lighting types that are soldered to internal circuit boards and are not serviceable.
The optional automatic transmission gear selector bezel lamp is located on the left side of the gear selector lever mechanism just beneath the bezel on the forward end of the center floor console. This lamp has a replaceable incandescent bulb.
Other components of the interior lighting system for this vehicle include:
- Door Ajar Switches - A door ajar switch is integral to the door latch mechanism of each front and rear door.
- Instrument Cluster - The ElectroMechanical Instrument Cluster (EMIC) is also known as the Cab Compartment Node (CCN) in this vehicle. The EMIC/CCN is located in the instrument panel above the steering column opening, directly in front of the driver. Instrument Cluster - Description.
- Left Multi-Function Switch - The left (lighting) multi-function switch is located on the steering column, just below the steering wheel. A control sleeve on the control stalk that extends from the left side of the switch is used to select the panel lamps dimmer lighting level or the courtesy lamp circuit operating mode. Left Multifunction Switch - Description.
- Liftgate Ajar Switch - A liftgate ajar switch is integral to the latch mechanism of the liftgate.
- Steering Control Module - The Steering Control Module (SCM) is located within the left multi-function switch housing on the top of the steering column, just below the steering wheel. Steering Column Module - Description.
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 the appropriate wiring information. 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.