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/Dome Lamps - Several cargo/dome lamp units located overhead in both the front and rear of the vehicle interior are available equipment. The exact number and location of these lamps varies with the optional body length as well as other optional equipment. These lamps feature a single incandescent bulb. An optional version of these lamps also includes an integral three-position switch that protrudes through the lamp lens.
- Dome/Reading Lamps - Dual front dome/reading lamp units are integral to the optional Roof Control Module (RCM) (also known as the Overhead Control Panel/OCP control unit or DBE), which is located in the headliner between the driver and passenger sun visors near the windshield header. These lamps each feature two incandescent bulbs, one dome lamp bulb and a second, dedicated reading lamp bulb. There are two push button switches adjacent to each lamp lens in the RCM. The most rearward switches control the adjacent reading lamp, the left forward switch turns the interior lighting ON or OFF, and the right forward switch turns interior lighting automatic control ON or OFF.
- Entry/Exit Lamps - An optional entry/exit lamp to illuminate each front and sliding side door step well is optional equipment. These lamps are located at one end of the step well trim.
- Glove Box Lamp - An optional glove box lamp with an integral plunger-actuated switch is centered in the roof of the instrument panel glove box opening and illuminates whenever the glove box is opened.

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. Most have either miniature incandescent bulbs or Light-Emitting Diode (LED) units that are soldered to internal circuit boards and are not serviceable. This includes an available ash receiver/cigar lighter lamp that is secured by an integral mount to the outside of the cigar lighter halo ring. This single lamp serves to illuminate both the translucent halo ring and the ash receiver.

Other components of the interior lighting system for this vehicle include:

- Ajar Switches - A door ajar switch is integral to the door latch mechanism of each front, rear and sliding door.
- Body Control Module - The Body Control Module (BCM) (also known as the Signal Acquisition and Actuation Module/SAM) is located beneath the driver side end of the instrument panel in the passenger compartment, where it is secured to the fuse and relay block (also known as the SRB). Description.
- Illumination Relay - The illumination relay (also known as the courtesy lamps relay) is an International Standards Organization (ISO) relay is located within the driver side front seat riser. It is concealed beneath the driver side front seat cushion on vehicles that are equipped with rear cargo/dome lamps.
- Instrument Cluster - The ElectroMechanical Instrument Cluster (EMIC) in this vehicle is sometimes referred to as the Cab Compartment Node/CCN or KOMBI. The EMIC is located in the instrument panel above the steering column opening, directly in front of the driver. Description.
- Interior Rear Lighting Master Switch - The optional interior rear lighting master switch is located in the instrument panel cluster bezel between the right side of the steering column and the ignition switch.
- Motion Detector - Cargo vans equipped with an optional interior lighting package include an infrared motion detector. On vehicles without an optional rear headliner it is secured within a molded plastic bracket to the center or rear roof cross bows. On vehicles equipped with the rear headliner option, the motion detector is secured to a mounting hole in the headliner substrate. Only the translucent red lens of the sensor is visible below the bracket or the headliner.
- Roof Control Module - The Roof Control Module (RCM) (also known as the Overhead Control Panel/OCP control unit or DBE) is integral to the optional OCP located on the headliner between the front driver and passenger seats just behind the upper windshield opening header. The OCP is available in multiple configurations, which vary from vehicle to vehicle depending upon the optional equipment in the vehicle. 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 system 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.