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 switchable cargo/second row dome lamp is standard equipment only on vehicles with four doors to illuminate both the cargo and second row seat areas. This lamp is located in the lower center surface of the sport bar rear crossmember and is controlled by the courtesy lamp circuit.
• Courtesy Lamp (1) - An optional single courtesy lamp is located on the lower edge of the instrument panel to illuminate the driver side foot well area. On vehicles so equipped, this lamp is controlled by the courtesy lamp circuit.
• Dome Lamp (2) - A standard equipment dome lamp is located in the lower center surface of the speaker enclosure/sound bar to illuminate the interior of the vehicle. This lamp 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 floor panel transmission tunnel. 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. (Refer to 8 - ELECTRICAL/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. (Refer to 8 - ELECTRICAL/LAMPS/LIGHTING - EXTERIOR/LEFT MULTI-FUNCTION SWITCH - DESCRIPTION).
• Swing Gate Ajar Switch - A swing gate ajar switch is integral to the latch mechanism of the swing gate.
• 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. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/STEERING COLUMN CONTROL MODULE - DESCRIPTION).
• Totally Integrated Power Module - The Totally Integrated Power Module (TIPM) is located in the engine compartment near the battery. (Refer to 8 - ELECTRICAL/POWER DISTRIBUTION/TOTALLY INTEGRATED POWER 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.