Description And Operation

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 located in the upper left rear cargo door.
• Front Fog Lamps  - Optional front fog lamp units are mounted near each outboard end of the front fascia, below the front lamp units.
• Rear Lamps  - Optional front fog lamp units are mounted near each outboard end of the rear fascia, below the tail lamp units.
• Headlamps 

  - The vehicle is equipped with 70 mm double headlights to increase the light intensity and consequently improve visibility in all conditions. When, on the other hand, it is equipped with Bi-Xenon lighting technology (high/low lighting via single high-intensity discharge (HID) bulb), there is twice as much light compared to the use of conventional bulbs, and the 70 mm headlight increases the light intensity by approximately 15% and the lighting depth by approximately 20%. Infrared halogen bulbs are used on the basic versions of the vehicle. The bulbs incorporate a special coating that brings the inside of the capsule to higher temperatures than conventional halogen bulbs, thus providing more light.

  • EMEA version headlights  - Infrared halogen bulbs are used on the basic versions of the vehicle. The bulbs incorporate a special coating that brings the inside of the capsule to higher temperatures than conventional halogen bulbs, thus providing more light. Equipped with H4 60/55 W-type halogen bulb.

    Courtesy of CHRYSLER GROUP, LLC

  • NAFTA version headlights  - Equipped with H13 60/55 W bulb. Infrared halogen bulbs are used on the basic versions of the vehicle. The bulbs incorporate a special coating that brings the inside of the capsule to higher temperatures than conventional halogen bulbs, thus providing more light.

    Courtesy of CHRYSLER GROUP, LLC

  • NAFTA/EMEA BI-XENON version headlights  - The vehicle can be equipped with headlights that use Bi-Xenon technology. The headlights are fitted with next-generation D5S 25W bulbs. The use of these bulbs, despite a lower brightness compared to a 35 W Bi-Xenon bulb, results in a considerable improvement in terms of lighting system complexity, because there are no self-levelling headlight or headlight washer systems, and ballast is not used.

  Courtesy of CHRYSLER GROUP, LLC

• License Plate Lamps  - Two standard equipment rear license plate lamp units are located just above the license plate tub. The license plate bulbs are equipped with W5W bulbs.

  Courtesy of CHRYSLER GROUP, LLC

• Rear Light Clusters 

  - The vehicle's rear light clusters are equipped with halogen bulbs that carry out the following functions:

  • Side lights;
  • Brake lights
  • Direction indicators
  • LED Side marker (NAFTA)
• Repeater Lamps  - A repeater lamp is mounted to each front fender just behind the front wheel opening.
• Side Marker Lamps  - A side marker lamp is integral to the front fascia forward of each front wheel opening and to the rear fascia behind each rear wheel opening.

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

• Automatic Headlamps  - The system automatically switches (if activated by the customer) from main beam to dipped beam headlights if light sources outside of the vehicle are detected, such as the light from the headlights of vehicles coming in the opposite direction, from the rear lights of vehicles in front or from road lighting. If these conditions are not maintained, the system will automatically switch back to main beam to increase night-time driving safety on poorly lit roads. If these conditions are not maintained, the system will automatically switch back to main beam to increase night-time driving safety on poorly lit roads.

  The system uses a camera fitted near the interior rear view mirror and in contact with the windshield to process the images and detect the approaching lights or lights in front. When it detects the headlights of an approaching vehicle, the lights of a vehicle in front or ambient light (daylight, streetlights and other sources), the HALF camera communicates with the BCM via CAN and the BCM deactivates the main beam headlights before they inconvenience other drivers. The function deactivates automatically (dipped beam headlights active) when the speed is below 20 km/h (12 mph) approximately

• 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  - The brake (or stop) lamps include a clear bulb, reflector and red lens that are integral to each rear lamp unit, and the red lens and multiple clear bulbs of the CHMSL.
• Daytime Running Lamps  - Daytime Running Lamps (DRL) are standard equipment. When DRL is enabled, the lamps illuminate the clearance (front position or park) lamp bulb in the front combination lamp unit to serve as the DRL. The DRL function can be turned on or off using the Electronic Vehicle Information Center (EVIC) display menus.
• Front Fog Lamps  - The optional equipment front fog lamps include the clear bulb, reflector and clear lens of each adjustable front fog lamp unit.
• Rear Fog Lamps  - The optional equipment rear fog lamps include the clear bulb, reflector and clear lens of each adjustable rear 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. The hazard lights are activated via a button located on the switch pod.
• Headlamps  - Most international models are equipped with dual 70 millimeter projector beam headlamps for outstanding forward- and spread-light performance.

  When equipped with a bi-functional (high/low beam capability in a single lamp) high-intensity discharge (HID) xenon lighting system (optional) - a technology that produces more than two-times the light output of tungsten-based systems - the 70 millimeter projector beams increases spread light by 15% and delivers a 20% improvement in forward lighting (range).

  The larger projector beam reduces the amount of perceived "pinpoint" glare associated with the HID lamps; due to a wider spread light pattern, shoulder visibility is enhanced while a less concentrated beam of light reduces perceived glare to oncoming vehicles. The new 25W module-based headlamp doesn't require a washer and leveling system. The new bulb is a stand-alone system that delivers a significant improvement on lifetime (4000h) and CO2 emission reduction.

  Halogen infrared bulbs are used on base offerings (similar to what's applied on all North American models). The bulbs incorporate a special coating that makes them burn hotter within the bulb chamber, and in turn, provides wider spread light and higher output than traditional halogen bulbs.

• Park Lamps  - The front park (also known as clearance or position) lamps include the clear bulbs, reflectors and clear lenses integral to the front combination lamp unit. The rear park (tail) lamps include the clear bulbs, reflectors and red lenses integral to each rear lamp unit.
• Turn Signal Lamps  - The front turn signal lamps include the amber bulbs, reflectors and clear lenses that are integral to the combination lamp unit. The amber bulbs and clear lenses of the repeater lamps on each front fender are also included in the front turn signal circuits. The rear turn signal lamps include an amber bulb, a reflector and a clear lens that is integral to each rear lamp unit.

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

• Backup Lamp Switch  - On vehicles with a manual transmission, a plunger-type backup lamp switch 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.
• Body Control Module  - The Body Control Module (BCM) is located beneath the instrument panel to the left of the steering column in the passenger compartment.
• 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 and both the left (lighting) and right (wiper) multi-function switches. The clockspring is located near the top of the steering column, directly beneath the steering wheel.

  Courtesy of CHRYSLER GROUP, LLC

• Exterior Light Switch 

  - The exterior light activation switch is located on the left side of the driver side dashboard. The exterior light switch has A knob to manage the following functions:

  • Parking lights
  • DRL
  • Auto-light
  • Dipped beam headlights

  Two switches built into the knob and used to activate the following functions:

  • Front fog lights
  • Rear fog lights

  Two wheels used to control the following:

  • Instrument panel backlighting adjustment (EMEA/NAFTA)
  • Interior lighting adjustment (NAFTA)
  • Headlight level. (EMEA)
• Fog Lamp Switch  - Vehicles equipped with optional front or both front and rear fog lamps have a momentary fog lamp switch integral to the lower instrument panel switch pod located in the lower center of the instrument panel heater and air conditioner control head.
• Hazard Switch  - A momentary push button-actuated hazard switch is integral to the upper instrument panel switch pod located in the center of the instrument panel just below the radio and above the heater and air conditioner controls.
• Instrument Panel Cluster  - The Instrument Panel Cluster (IPC) is located in the instrument panel above the steering column opening, directly in front of the driver.
• Instrument Panel Switch Pod  - A momentary push button-actuated hazard switch is integral to the upper instrument panel switch pod located in the center of the instrument panel just below the radio. Vehicles equipped with optional fog lamps have a momentary fog lamp switch integral to the lower instrument panel switch pod located in the lower center of the instrument panel heater and air conditioner control head.
• Left Multi-Function Switch  - The left (lighting) multi-function switch is integral to the clockspring 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 turn the exterior lighting ON or OFF.
• 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.
• Trailer Tow Wiring  - This device includes an electronic control unit (Trailer Tow Module/TTM) that controls the operation of the external lights located on the trailer, as well as a connection located in the luggage compartment left side. This connection outlet is located next to the towbar. The rear park assist sensors are automatically disabled when the trailer tow electrical socket is in use.

Hardwired circuitry connects the exterior lighting system components to the electrical system of the vehicle. These hardwired 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, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds. For proper wire repair, and connector repair procedures. Refer to STANDARD PROCEDURE . and. Refer to REMOVAL . Refer to INSTALLATION .

OPERATION 

Following are paragraphs that briefly describe the operation of each of the major exterior lighting systems. The lamps and the hardwired circuits between components related to the exterior lighting system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.

However, conventional diagnostic methods will not prove conclusive in the diagnosis of the exterior lighting system or the electronic controls or communication between modules and other devices that provide some features of the exterior lighting system. The most reliable, efficient, and accurate means to diagnose the exterior lighting system or the electronic controls and communication related to exterior lighting system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

BACKUP LAMPS  - The backup (or reverse) lamps have a path to ground at all times through a takeout and eyelet terminal of the body wire harness that is secured by a ground screw to the body sheet metal. On vehicles with a manual transmission, when REVERSE is selected, the backup lamp switch provides a hardwired input to the Powertrain Control Module (PCM) through a reverse switch signal circuit. The PCM then sends an electronic reverse transmission gear selector status message to the Body Control Module (BCM) over the Controller Area Network (CAN) data bus. The BCM energizes a high side driver which provides battery voltage to the backup lamps on the backup lamp feed circuit whenever the ignition switch is in the ON position and the REVERSE position is selected with the transmission shift linkage.

On vehicles with an automatic transmission, the Transmission Control Module (TCM) monitors a multiplex input from the Transmission Range Sensor (TRS). When REVERSE is selected, the TCM sends an electronic reverse transmission gear selector status message to other electronic modules over the CAN data bus. Whenever the ignition switch is in the ON position and the BCM receives an electronic message indicating the status of the transmission gear selector is REVERSE, the BCM energizes a high side driver, which provides battery voltage to the backup lamps on the backup lamp feed circuit.

BRAKE LAMPS  - The brake (or stop) lamps and the Center High Mounted Stop Lamp (CHMSL) each have a path to ground at all times through a takeout and eyelet terminal of the body wire harness that is secured by a screw to the body sheet metal. The BCM receives a battery voltage input whenever the brake lamp switch is closed by the brake pedal arm. The BCM then energizes a high side driver, which provides battery voltage to the brake lamps and the CHMSL through a tail/stop lamp rear feed circuits.

DAYTIME RUNNING LAMPS  - Vehicles with the Daytime Running Lamps (DRL) feature enabled illuminate the clearance (position) lamp bulbs in the upper cavity of the two lower front combination lamp units when the engine is running, the parking brake is released, the headlamps are turned OFF, and the optional automatic transmission gear selector lever is in any position except PARK. The park lamps may be ON or OFF for DRL to operate. For vehicles with a manual transmission, the DRL will operate in any transmission gear selector lever position. The BCM must be programmed appropriately for this feature to be enabled.

Once enabled, anytime the BCM receives an electronic message input over the CAN data bus from the PCM indicating the engine is running, hardwired inputs indicating the left (lighting) multifunction switch is in any position except headlamps ON and the parking brake lever is released, and from the TCM indicating the automatic transmission gear selector lever is in any position except PARK, the BCM energizes a high side driver, which provides battery voltage to the clearance lamp bulbs through the right and left clearance lamp feed circuits.

FOG LAMPS  - The front fog lamps have a path to ground at all times through their connection to the headlamp and dash wire harness. The engine compartment wire harness has takeouts with eyelet terminals that are secured by screws to the front-end sheet metal within the engine compartment. The BCM monitors a hardwired input from the fog lamp switch in the lower instrument panel switch pod to determine whether the front fog lamps are selected. If the front fog lamps are selected and the left (lighting) multifunction switch inputs indicate the headlamp low beams are ON, the BCM energizes a high side driver, which provides battery voltage to the front fog lamps through the right and left front fog lamp feed circuits.

The BCM also sends the appropriate electronic messages to the Instrument Panel Cluster (IPC) over the CAN data bus to illuminate or extinguish the front fog lamp indicator. The BCM will automatically de-energize the front fog lamps any time the headlamps are turned OFF or the headlamp high beams are selected.

Each front fog lamp includes an integral adjustment screw to be used for static aiming of the fog lamp beams.

HAZARD WARNING LAMPS  - The BCM monitors a hardwired input from the hazard switch in the lower instrument panel switch pod located in the center of the air conditioner and heater control head to determine whether the hazard warning system has been selected. When the hazard warning system is selected, the BCM controls hazard warning system operation and flash rate by energizing and de-energizing high side drivers, which controls battery voltage outputs on the right and left turn signal feed circuits. The BCM also sends electronic hazard switch status  messages to the IPC over the CAN data bus to control the illumination and flash rate of the left and right turn signal indicators, as well as to control the click rate of an electromechanical relay soldered onto the IPC electronic circuit board that emulates the sound emitted by a conventional hazard warning flasher.

HEADLAMPS  - The headlamp system includes the BCM, the IPC and the left (lighting) multifunction switch on the steering column. The headlamp bulbs have a path to ground at all times through their connection to the headlamp and dash wire harness. The headlamp and dash wire harness has takeouts with eyelet terminals that are secured by screws to the front-end sheet metal within the engine compartment. The BCM monitors hardwired inputs to determine the status of the left multifunction switch and whether the headlamp high or low beams are selected. The BCM then controls headlamp illumination through relays soldered onto the BCM internal circuit board.

When the BCM detects a change in headlamp beam selection, the BCM energizes or de-energizes a high side driver, which controls an output to the solenoid that operates the shutter in each headlamp. The BCM also sends the appropriate electronic messages to the IPC to control the illumination of the high beam indicator. The BCM remembers which beams (LOW or HIGH) were selected when the headlamps were last turned OFF and energizes those beams again the next time the headlamps are turned ON.

Each headlamp includes an integral reflector adjustment screw to be used for static aiming of the headlamps.

HEADLAMP DELAY  - The headlamp delay feature (also known as the Follow Me Home feature) includes the left (lighting) multifunction switch, the IPC and the BCM. The BCM controls this feature by monitoring inputs from the ignition switch and the left (lighting) multifunction switch. If within two minutes after the ignition switch is turned to the OFF position, the left multifunction switch control stalk is pulled toward the steering wheel and released the BCM energizes the relay that controls the headlamp low beams and the high side driver that controls the clearance (position) lamps for 30 seconds. Each additional activation of the control stalk extends the delay by 30 seconds, up to a maximum of 210 seconds. The BCM automatically de-energizes the lamps after the selected time interval expires or, immediately, if the control stalk is pulled toward the steering wheel and held for more than two seconds. The BCM also sends the appropriate electronic messages to the IPC over the CAN data bus to control the Follow Me Home indications in the IPC display.

PARK LAMPS  - The park lamps system includes the left (lighting) multifunction switch, the IPC and the BCM. The clearance (position) lamp bulbs in the upper cavity of each lower front combination lamp unit have a path to ground at all times through their connection to the headlamp and dash wire harness. The headlamp and dash wire harness has takeouts with eyelet terminals that are secured by screws to the front-end sheet metal within the engine compartment. The park (tail) lamp bulbs in each rear lamp unit and the license plate lamps have a path to ground at all times through a takeout and eyelet terminal of the body wire harness that is secured by a screw to the body sheet metal within the passenger compartment.

The BCM monitors a hardwired input from the left (lighting) multifunction switch, then responds to this input by energizing or de-energizing high side drivers, which control battery voltage outputs to the appropriate lamps and bulbs through the proper park/tail/license/running lamp right and left circuits. The BCM also provides the appropriate electronic messages to the IPC to control the illumination and lighting level of the panel lamps.

TURN SIGNAL LAMPS  - The turn signal lamps system includes the left (lighting) multifunction switch, the IPC and the BCM. The front turn signal lamp bulbs in the lower cavity of each lower front combination lamp unit. The rear turn signal lamp bulbs have a path to ground at all times through a takeout and eyelet terminal of the body wire harness that is secured by a screw to the body sheet metal within the passenger compartment.

The BCM monitors a hardwired input from the left (lighting) multifunction switch to determine the status of the turn signal switch, then controls turn signal operation and flash rate by energizing and de-energizing high side drivers, which control battery voltage outputs on the right or left turn signal feed circuits. The BCM also sends electronic turn signal switch status messages to the IPC over the CAN data bus to control the illumination and flash rate of the left or right turn signal indicators, as well as to control the click rate of an electromechanical relay soldered onto the IPC electronic circuit board that emulates the sound emitted by a conventional turn signal flasher.