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:
- Courtesy Lamps (1) - Standard courtesy lamps are located under the right and left ends of the instrument panel, and are controlled by the courtesy lamp circuit.
- Glove Box Lamp (7) - A standard glove box lamp with an integral plunger-actuated switch is located just inboard of the glove box latch striker on the instrument panel upper glove box opening and illuminates whenever the glove box is opened.
- Liftgate Lamp (6) - A standard liftgate lamp is located in the lower left corner of the liftgate trim panel and is activated automatically whenever the liftgate is opened to illuminate the rear cargo area of the vehicle.
- Front Dome/Reading Lamps (3) - Front seat driver side and passenger side dome/reading lamps located on the headliner above each front door opening are controlled by both the courtesy lamp circuit and independent lens-actuated switches.
- Second Row Dome/Reading Lamps (4) - The second row seat dome/reading lamps are controlled by both the courtesy lamp circuit and independent lens-actuated switches. These lamps are integral to the grab handles located on the headliner above each rear door opening adjacent to each outboard second row seating position.
- Third Row Dome/Reading Lamp (5) - The third row seat dome/reading lamp is controlled by both the courtesy lamp circuit and an independent lens-actuated switch. This lamp is centrally located in the headliner above the third row seat and also serves as a cargo area lamp when the third row seats are folded flat.
- Vanity Lamps (2) - An optional single-intensity vanity lamp is located above 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 in the interior of the vehicle are illuminated by the panel lamps dimmer circuit for night visibility. All have either miniature incandescent bulbs or Light-Emitting Diode (LED) units that are soldered to internal circuit boards and are not serviceable.
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.
- 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 lower flip-up glass opening in the liftgate inner panel.
- 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 - Removal.
- 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.