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 - Standard equipment front fog lamp units are mounted near each outboard end of the front fascia, below the front lamp units (MK49 - Compass) or headlamp units (MK74 - Patriot).
- Front Park/Turn Lamps - A standard equipment front park/turn lamp unit is mounted high at each outboard end of the front fascia of the MK74 - Patriot model. These lamps are integrated into the front lamp units of the MK49 - Compass model.
- Front Position Lamps - A front position lamp is integral to each front lamp unit (MK49 - Compass) or headlamp unit (MK74 - Patriot) in certain markets where they are required.
- Headlamps - A standard equipment front headlamp unit is mounted to the front end sheet metal on each side of the grille opening of the MK74 - Patriot model. These lamps are integrated into the front lamp units of the MK49 - Compass model.
- License Plate Lamps - Two standard equipment rear license plate lamp units are integral to the light bar assembly, just above the license plate tub formation in the outer liftgate panel.
- Rear Fog Lamp Units - In certain markets where they are required a rear fog lamp unit is mounted to the rear fascia below each rear lamp unit on MK49 - Compass models. These lamps are integrated into the rear lamp units of the MK74 - Patriot model.
- Rear Lamp Units - A standard equipment rear lamp unit is mounted to the rear of each quarter panel on either side of the liftgate opening.
- Repeater Lamps - A repeater lamp is mounted to each front fender just behind the front wheel opening on vehicles manufactured for certain markets where they are required.

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

- Backup Lamps - The backup (or reverse) lamps include a clear bulb, reflector and clear lens that are integral to each rear lamp unit.
- Brake Lamps - On the MK49 - Compass model, the brake (or stop) lamps include the red lens and multiple Light-Emitting Diode (LED) units of the rear lamp unit. On the MK74 - Patriot model, the brake lamps include the clear bulb, reflector and red lens that are integral to each rear lamp unit. On all models, the brake lamps also include the red lens and multiple Light-Emitting Diode (LED) units of the CHMSL.
- Daytime Running Lamps - Daytime Running Lamps (DRL) are standard equipment on vehicles manufactured for sale in Canada and optional on vehicles manufactured for the United States. Vehicles with DRL enabled illuminate the high beam filament of each headlamp bulb (except Patriot with Trail-Rated option for the United States market, which uses the low beam filament) at a reduced intensity to serve as the 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 Steering Control Module (SCM), or when there is no communication over the Local Interface Network (LIN) or Controller Area Network (CAN) data buses.
- 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 standard equipment front fog lamps include the clear bulb, reflector and clear lens of each adjustable front fog lamp unit. The front fog lamps of MK49 - Compass models incorporate a projector lens.
- 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 standard equipment low or high beam headlamps remain illuminated for a customer-programmable delay period of 0 (disabled), 30, 60 or 90 seconds when the headlamps are turned OFF after the ignition switch has been turned to the OFF position.
- Headlamps - On MK49 - Compass models for domestic markets the headlamps include two single filament halogen bulbs in each front lamp unit, one low beam and one high beam. On MK49 - Compass models for export markets the headlamps include a single halogen bulb for low or high beam headlamps and a projector lens. An electric motor and mechanism internal to each front lamp unit closes a shutter for low beams and opens the shutter for high beams. For MK74 - Patriot models each headlamp unit includes a single dual filament halogen bulb. All headlamp systems also include an adjustable reflector and clear lens integral to each lamp unit.
- Headlamp Leveling - Headlamp leveling is available only in certain markets where it is required equipment. A headlamp leveling actuator motor on each front lamp unit (MK49 - Compass) or headlamp unit (MK74 - Patriot) and a headlamp leveling switch integral to the switch pod in the instrument panel center stack allow the headlamp beam pattern to be adjusted by the vehicle operator from the interior of the vehicle to compensate for passenger or cargo loads.
- Optical Horn - Also known as flash-to-pass, the beam selection function of the left (lighting) 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 - On MK49 - Compass models the front park lamps include either the amber bulbs, the reflectors and the clear lenses of the park lamp compartment in both front lamp units or the clear position lamp bulb within the park lamp compartment of both front lamp units. On vehicles not equipped with repeater lamp units, the front lamp units also include the front side marker lamp bulbs and amber reflectors. On vehicles equipped with repeater lamp units, only the amber side marker reflectors are retained in the front lamp units. The rear park lamps include the red lens and multiple Light-Emitting Diode (LED) units of the rear lamp unit as well as the bulbs and lenses of the rear license plate lamps. On MK74 - Patriot models the front park lamps include the amber bulbs, reflectors and clear lenses integral to each front park/turn lamp unit and, if the vehicle is so equipped, the clear position lamp bulb integral to each headlamp unit. The rear park lamps include the clear bulbs, reflectors and red lenses integral to each rear lamp unit as well as the bulbs and lenses of the rear license plate lamps.
- Rear Fog Lamps - Rear fog lamps are available only in certain markets where they are required equipment. On MK49 - Compass models the rear fog lamps include a clear bulb and a red lens and reflector that are integral to each rear fog lamp unit located below the outer tail lamps in the rear fascia. On domestic market vehicles, only the red reflector is retained in the rear fascia. On MK74 - Patriot models the rear fog lamps include a clear bulb and a red lens and reflector that are integral to each rear lamp unit.
- Turn Signal Lamps - On MK49 - Compass models the front turn signal lamps include an amber bulb, a reflector, and a clear lens that are integral to each front lamp unit. The rear turn signal lamps include an amber bulb, a reflector and a clear lens that are integral to each rear lamp unit. On MK74 - Patriot models the front turn signal lamps include an amber bulb, a reflector and a clear lens that are integral to each front park/turn lamp unit. In certain markets where they are required, both models have repeater lamps on each front fender that will also be included in the front turn signal circuits. The rear turn signal lamps include an amber bulb, a reflector and a clear lens that are integral to each rear lamp unit.

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

- Backup Lamp Switch - A plunger-type backup lamp switch is installed through the transmission housing of vehicles equipped with a manual transmission and is actuated by the shifter mechanism within the transmission when REVERSE gear is selected. On vehicles with an optional automatic transmission a stand-alone Transmission Range Sensor (TRS) performs the backup lamp switch function.
- Brake Lamp Switch - A plunger-type brake lamp switch is located on the brake pedal support bracket under the instrument panel and is actuated by the brake pedal arm when the brake pedal is depressed.
- Clockspring - The clockspring includes an integral turn signal cancel cam, which provides automatic turn signal cancellation as the steering wheel is rotated back to its centered position following a vehicle turning maneuver. The clockspring is located near the top of the steering column, directly beneath the steering wheel. Clockspring - Description.
- 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 Switch - A four mode push button-actuated headlamp leveling 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 of vehicles manufactured for certain markets where the headlamp leveling feature is required.
- 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 - The instrument panel switch pod contains the hazard switch and, on vehicles so equipped, the headlamp leveling switch. The switch pod is located just below the heater and air conditioner controls in the center stack area of the instrument panel. Instrument Cluster Switch Pod - Description.
- Left Multi-Function Switch - The left (lighting) multi-function switch is located on the steering column, just below the steering wheel. A control stalk that extends from the left side of the switch is used to select the turn signal lamps (right or left) and to select the headlamp beam (low, high or optical horn). A control knob on the control stalk is used to select the park lamps, headlamps or fog lamps.
- Park Brake Switch - A park brake switch is located on the park brake lever mechanism on the floor panel transmission tunnel between the two front seats.
- 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.
- Totally Integrated Power Module - The Totally Integrated Power Module (TIPM) is located in the engine compartment, near the battery. Description.
- Trailer Tow Wiring - Vehicles equipped with an optional Trailer Tow Prep package have a trailer tow wiring jumper harness, relay pack and an instruction card that are placed in the cargo area of the vehicle when it is shipped from the factory. This package also includes an additional fused B(+) circuit in the unibody wire harness behind the right D-pillar trim for a feed connection to the relay pack in the trailer tow wiring jumper harness.

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.