Exterior Lamps - Description

DESCRIPTION

The exterior lighting system for this vehicle includes the following exterior lamp units:

- Center High Mounted Stop Lamp - A standard equipment Center High Mounted Stop Lamp (CHMSL) is centered on the liftgate spoiler just above the liftgate glass opening at the rear of the vehicle.
- Front Fog Lamps - Vehicles equipped with this option have a separate fog lamp unit mounted near each outboard end of the front fascia, below each front lamp unit.
- Front Lamp Units - A halogen front lamp unit is standard equipment, while a front lamp unit that has a High Intensity Discharge (HID) low beam and a halogen high beam is optional equipment. The front lamp units are mounted to the front of each front fender panel on either side of the grille opening.
- License Plate Lamps - Two standard equipment rear license plate lamp units are mounted to the underside of the light bar and handle unit, just above the license plate tub formation on the outer liftgate panel.
- Outside Mirror Signal Lamps - Vehicles equipped with this option have a signal lamp unit integral to the lower forward facing surface of each outside rear view mirror. These signal lamps are serviced only as a unit with the outside rear view mirror assembly.
- Rear Lamp Units - A standard equipment two-piece rear lamp unit is mounted on each side at the rear of the vehicle. One piece of the rear lamp is secured to the end of each quarter panel on either side of the liftgate opening and the second piece is secured to each side of the liftgate outer panel, adjacent to the first piece of the rear lamp when the liftgate is closed.

These exterior lighting lamp units and their controls are combined to provide the following exterior lighting features:

- Automatic Headlamps - Automatic headlamps are standard equipment on this vehicle. The headlamp switch includes an A (Automatic) position and an automatic headlamp sensor senses ambient light levels. The automatic headlamp sensor is integral to the sun load sensor located on the top of the instrument panel. When the A position of the headlamp switch is selected, the headlamps are turned ON and OFF automatically as ambient light levels dictate.
- Backup Lamps - The backup (or reverse) lamps include a clear bulb, reflector and clear lens that are integral to each outer rear lamp unit.
- Brake Lamps - The brake (or stop) lamps include a clear bulb, reflector and a red lens that are integral to each outer rear lamp unit, and the red lens and multiple Light-Emitting Diode (LED) units of the CHMSL.
- Daytime Running Lamps - Vehicles manufactured for sale in Canada illuminate the high beam headlamp bulb in each front lamp unit at a reduced intensity to serve as the Daytime Running Lamps (DRL). United States fleet vehicles illuminate the low beam headlamp bulb in each front lamp unit at a reduced intensity to serve as DRL.
- Exterior Lamp Fail-Safe Operation - The ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN) and the Totally Integrated Power Module (TIPM) provide a fail-safe feature which will automatically turn ON the low beam headlamps and all park lamps when the ignition switch is in the ON position and there is no detected input from the headlamp switch, or when there is no communication over the Controller Area Network (CAN) data bus.
- Exterior Lamp Load Shedding - The TIPM provides a battery saver feature which will automatically turn OFF all exterior lamps that remain ON with the ignition switch in the LOCK position after a timed interval of about eight minutes.
- Front Fog Lamps - The optional front fog lamps include the bulb, reflector and lens of each adjustable front fog lamp unit.
- Hazard Warning Lamps - The hazard warning lamps include the bulbs, reflectors and lenses of each lamp in the right and left, front and rear turn signal circuits.
- Headlamp Delay - The low or high beam headlamps remain illuminated for a timed delay interval after the ignition switch has been turned to the OFF position. If the vehicle is equipped with the optional Electronic Vehicle Information Center (EVIC), the delay interval is customer-programmable for 0, 30, 60 or 90 seconds. For vehicles without the optional EVIC, the default delay interval of 90 seconds applies.
- Headlamps - Two headlamp systems are available on this vehicle. The standard halogen headlamp system includes two single filament halogen bulbs in each front lamp unit, one low beam and one high beam. The optional HID headlamp system includes a HID lighting element/igniter unit for low beam headlamps and a halogen bulb for high beam headlamps. The HID front lamp units each include an electronic ballast module, while an Automatic Headlamp Leveling Module (AHLM) that serves both front lamp units is mounted to the bottom of the right front lamp unit only. Both headlamp systems also include an adjustable reflector and clear lens integral to each front lamp unit.
- Headlamp Leveling - On all vehicles equipped with optional HID headlamps, an Automatic Headlamp Leveling Module (AHLM) on the right front lamp unit controls a headlamp leveling actuator motor on each front lamp unit to automatically perform headlamp adjustments using inputs from front and rear axle sensors to monitor changes in the vehicle suspension height.
- Optical Horn - Also known as flash-to-pass, the beam selection function of the multi-function switch control stalk has a momentary intermediate position that allows the headlamp high beams to be flashed momentarily, without changing the headlamp beam selection.
- Park Lamps - The front park lamps include the amber bulbs, the reflectors and the clear lenses of the park lamp compartment in both front lamp units. The front lamps also include the front side marker lamp bulbs and amber reflectors. The rear park lamps include a clear bulb, a reflector and a red lens integral to each outer rear lamp unit as well as two clear bulbs, the reflectors and the red lenses of each inner rear lamp unit. The clear bulbs and lenses of the two license plate lamp units are also included with the rear park lamps.
- SmartBeam(R) Automatic Headlamps - Vehicles equipped with the optional SmartBeam(R) automatic headlamps include a unique digital light-sensing imager camera integral to the electrochromic inside rear view mirror and programming that allows it to detect light levels, their color and their source within the path ahead of the vehicle. When SmartBeam(R) is enabled, the high beam position of the headlamp dimmer switch is selected and the ambient light conditions are appropriate, the headlamp high beams are turned ON and OFF automatically as needed.
- Turn Signal Lamps - The front turn signal lamps include an amber bulb, a reflector, and a clear lens that are integral to each front lamp unit. On vehicles equipped with the optional outside mirror signal lamps, there are several amber LED units integral to each mirror signal lamp unit that are also activated by the turn signal circuits for the same side of the vehicle. The front side marker lamps will also be included in the front turn signal circuits. The rear turn signal lamps include a clear bulb and a red lens and a reflector that are integral to each outer rear lamp unit.

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

- Automatic Headlamp Leveling Module - Vehicles equipped with HID headlamps have an AHLM located on the bottom of the right front lamp unit housing. The AHLM monitors the vehicle ride height through the front and rear axle sensors, then provides inputs to the headlamp leveling motor on each front lamp unit as appropriate.
- Axle Sensors - Vehicles equipped with HID headlamps have an axle sensor for both the front and the rear axles, which monitor the suspension height of the vehicle.
- Backup Lamp Switch - A Transmission Range Sensor (TRS) integral to the solenoid pack on the valve body of the electronic automatic transmission performs the backup lamp switch function for this vehicle.
- Brake Lamp Switch - A plunger-type brake lamp switch is located on the steering column support bracket under the instrument panel and is actuated by the brake pedal arm when the brake pedal is depressed.
- Electronic Ballast Module - Vehicles equipped with the HID headlamps have an electronic ballast module secured to the underside of each front lamp unit. Each module controls the HID lighting element/igniter within the front lamp unit to which it is mounted.
- Hazard Switch - A latching push button-actuated hazard switch is integral to the switch pod located just below the heater and air conditioner controls in the center stack area of the instrument panel.
- Headlamp Leveling Motor - A headlamp leveling actuator motor is located on the back of each front lamp unit housing of vehicles manufactured with HID headlamps.
- Headlamp Switch - A headlamp switch is located on the left side of the instrument panel, below the left instrument panel vent outboard of the steering column. The headlamp switch includes a rotary knob to turn the park lamps and headlamps ON or OFF and is pushed inward for selecting the optional front fog lamps on vehicles so equipped.
- 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.
- Instrument Panel Switch Pod - A latching push button-actuated hazard switch is integral to the instrument panel switch bank located just below the air conditioning and heater controls in the center stack area of the instrument panel. Instrument Cluster Switch Pod - Description
- Multi-Function Switch - The multi-function switch is integral to the Steering Column Control Module (SCCM) located on the steering column, just below the steering wheel. A control stalk that extends from the left side of the SCM is used to select the turn signal lamps (right or left) and to select the headlamp beam (low, high or optical horn).
- Park Brake Switch - A park brake switch is located on the park brake lever mechanism on the cowl side inner panel (Left-Hand Drive/LHD) or the right side of the floor panel transmission tunnel (Right-Hand Drive/RHD) to the left of the steering column.
- SmartBeam(R) Module - The SmartBeam(R) automatic high beam digital imaging camera and system logic circuitry is integral to the electrochromic inside rear view mirror on the inside of the windshield.
- Steering Control Module - The Steering Control Module (SCM) is located within and integral to the Steering Column Control Module (SCCM) located on the top of the steering column, just below the steering wheel. Steering Column Module - Description.
- Totally Integrated Power Module - The Totally Integrated Power Module (TIPM) is located in the engine compartment. Description.
- Trailer Tow Wiring - Vehicles with a factory-installed trailer towing package have a trailer tow wire harness with a combination 4-way and heavy duty 7-way trailer tow connector installed in the rear bumper fascia near the trailer hitch receiver. This package also includes an electric trailer brake wiring provision that terminates at a connector located on top of the large body harness connection bracket under the instrument panel to the left of the steering column. An electric trailer brake pigtail harness and an instruction card are available through MOPAR(R) to ease installation of most aftermarket electric trailer brake controllers.
- Trailer Tow Relays - Vehicles with a factory-installed trailer towing package have two trailer tow relays installed in the TIPM in the engine compartment. One relay is for the trailer right turn and brake lamps, and the other is for the trailer left turn and brake lamps.

Hard wired circuitry connects the exterior 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 exterior 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.