Lampslighting - Exterior - Service Information

LAMPS/LIGHTING - EXTERIOR - SERVICE INFORMATION📷 1

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LAMPS/LIGHTING - EXTERIOR📷 1

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

 Center High Mounted Stop Lamp (2) - A standard equipment Center High Mounted Stop Lamp (CHMSL) is centered on the upper liftgate header above the liftgate glass opening at the rear of the vehicle.  Front Lamp Units (1) - A standard equipment front lamp unit is located at each outboard end of the grille assembly in the front end module.  Front Park/Turn Signal Lamps (7) - Standard equipment front park/turn signal lamp units are mounted to each forward-facing end of the front fascia, adjacent to the front lamp units.  Front Side Marker Lamps (6) - Standard equipment front side marker lamp units are mounted to each outboard-facing end of the front fascia on domestic market vehicles. On export market vehicles these lamps are replaced by a non-illuminated white reflector.  License Plate Lamps (3) - 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 Lamp Units (4) - A standard equipment rear lamp unit is mounted to the rear of each quarter panel on either side of the liftgate opening.  Repeater Lamps (5) - A repeater lamp is mounted to each front fender just behind the front wheel opening on vehicles manufactured for export market vehicles 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 - 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 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 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 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 (except park lamps in certain markets) 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, adjustable reflector and clear lens integral to each front 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 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 - The headlamps include a single, dual filament halogen bulb, an adjustable reflector and a clear lens integral to each front lamp unit.  Headlamp Leveling - Headlamp leveling is available only in certain markets where it is required equipment. A headlamp leveling actuator motor on each headlamp unit and a headlamp leveling switch integral to the switch pod in the instrument panel 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 - The front park lamps include the amber bulbs, the reflectors and the clear lenses of the front park/turn signal lamp units as well as the clear bulbs and the amber lenses of the front side marker lamps or the clear position lamp bulb integral to each front lamp unit. The rear park lamps include a clear bulb, a reflector and a red lens integral to each rear lamp unit as well as the clear bulb and lens of the license plate lamp units.  Rear Fog Lamps - Rear fog lamps are available only in certain markets where they are required equipment. The rear fog lamps include a clear bulb, a reflector and a red lens that are integral to each rear lamp unit.  Turn Signal Lamps - The front turn signal lamps include an amber bulb, a reflector, and a clear lens that are integral to each front park/turn signal lamp unit and the front side marker lamps. In certain markets

where required, the repeater lamps on each front fender replace the front side marker lamps in the front turn signal circuits. The rear turn signal lamps include a clear bulb, a reflector and a red lens integral to each rear lamp unit for domestic market vehicles, or an amber bulb and a clear lens for export market vehicles.

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. Refer to 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. Refer to 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. Refer to 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. Refer to

Description

 Totally Integrated Power Module - The Totally Integrated Power Module (TIPM) is located in the engine compartment, near the battery. Refer to DESCRIPTION .  Trailer Tow Wiring Adapter - Vehicles equipped with a factory-installed trailer towing package have a wiring adapter provided that adapts the factory-installed heavy duty 7-way trailer tow connector to a conventional 4-way light duty connector.  Trailer Tow Connector - Vehicles equipped with a factory-installed trailer towing package have a heavy duty 7-way trailer tow connector installed in a bracket on the trailer hitch receiver.

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.

LAMPS/LIGHTING - EXTERIOR

Following are paragraphs that briefly describe the operation of each of the major exterior lighting systems. The lamps and the hard wired 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 unibody wire harness that is secured by a nut to a ground stud on the body sheet metal within the passenger compartment. On vehicles with a manual transmission, the backup lamp switch provides a hard wired input to the Totally Integrated Power Module (TIPM) through a reverse switch signal circuit and the TIPM provides battery voltage to the backup lamps on the backup lamp feed circuit whenever the ignition switch is not in the LOCK position and the REVERSE position is selected with the transmission shift linkage.

On vehicles with an automatic transmission the Powertrain Control Module (PCM) or the Transmission Control Module (TCM) monitors a multiplex input from the Transmission Range Sensor (TRS), then sends the proper electronic transmission gear selector status messages to the TIPM over the Controller Area Network (CAN) data bus. Whenever the ignition switch is not in the LOCK position and the TIPM receives an electronic message indicating the status of the transmission gear selector is REVERSE, it provides a battery voltage output through a high side driver 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 nut to a ground stud on the body sheet metal within the passenger compartment. The CHMSL receives battery voltage directly on the brake lamp switch output circuit when the brake lamp switch is closed by the brake pedal arm. The TIPM also

receives battery voltage on the brake lamp switch output circuit, which it uses as a logic input to energize the brake lamps. The TIPM provides battery voltage to the brake lamps through two high side drivers on the tail/stop lamp rear feed circuit when it receives the proper input from the closed brake lamp switch.

DAYTIME RUNNING LAMPS

Vehicles manufactured for sale in Canada illuminate the high beam filament of both headlamp bulbs at a reduced intensity 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 Daytime Running Lamps (DRL) will operate in any transmission gear selector lever position. In fleet vehicles manufactured for the U. S. and Mexican markets, DRL operates in the same manner, but the low beam filament of both headlamp bulbs is used rather than the high beam filament. The TIPM must be programmed appropriately for this feature to be enabled.

Once enabled, anytime the TIPM receives electronic messages over the CAN data bus from the Powertrain Control Module (PCM) indicating the engine is running, from the ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN) indicating the status of the left (lighting) multi- function switch is in any position except headlamps ON and the parking brake lever is released, and from the Powertrain Control Module (PCM) or the Transmission Control Module (TCM) indicating the automatic transmission gear selector lever is in any position except PARK, the TIPM provides a pulse width modulated voltage output to the headlamp high beam bulb filaments through high side drivers on the right and left high or low beam feed circuits to produce illumination at a reduced intensity.

FRONT FOG LAMPS

The front fog lamps have a path to ground at all times through their connection to the engine compartment wire harness. The engine compartment wire harness has takeouts with eyelet terminals that are secured by nuts to ground studs on the front end sheet metal within the engine compartment. The Steering Control Module (SCM) monitors a hard wired multiplex input from the left multi-function switch to determine whether the fog lamps are selected, then sends an electronic front fog lamp switch status message to the EMIC over the Local Interface Network (LIN) data bus and the EMIC relays an electronic front fog lamp request message to the TIPM over the CAN data bus.

When the TIPM receives a front fog lamp request message it then controls front fog lamp operation by controlling a battery voltage output through high side drivers on right and left fog lamp feed circuits. The TIPM also sends the appropriate electronic message back to the EMIC to illuminate or extinguish the front fog lamp indicator. In certain markets where required, the TIPM will automatically de-energize the front fog lamps any time the headlamp high beams are selected.

The TIPM also provides a battery saver (load shedding) feature for the front fog lamps, which will turn these lamps OFF if they are left ON for more than about eight minutes with the ignition switch in the LOCK position or if there is a charging system failure.

Each front fog lamp shares a reflector with the headlamp and is adjusted in concert with the headlamp for the same side of the vehicle.

HAZARD WARNING LAMPS

The hazard warning system includes the EMIC, the TIPM and the hazard switch in the switch pod located in the center stack area of the instrument panel, below the air conditioner and heater controls. The hazard switch provides a hard wired input to the TIPM. When the TIPM receives an input from the hazard switch it controls hazard warning system operation and flash rate by controlling battery voltage outputs through high side drivers on the right and left turn signal feed circuits.

The TIPM also sends the appropriate electronic messages back to the EMIC over the CAN data bus to control the illumination and flash rate of the right and left turn signal indicators, as well as to control the click rate of an electromechanical relay soldered onto the EMIC electronic circuit board that emulates the sound emitted by a conventional hazard warning flasher.

HEADLAMPS

The headlamp system includes the SCM, the EMIC, the TIPM, and the left (lighting) multi-function switch on the steering column. The headlamp bulbs have a path to ground at all times through their connection to the engine compartment wire harness. The engine compartment harness has takeouts with eyelet terminals that are secured by nuts to ground studs on the front end sheet metal within the engine compartment. The TIPM will store a Diagnostic Trouble Code (DTC) for any shorts or opens in the headlamp circuits.

The SCM monitors a hard wired multiplex input to determine the status of the left multi-function switch and whether the headlamp high or low beams are selected. The SCM then sends the appropriate electronic headlamp switch and headlamp beam select switch status messages to the EMIC over the LIN data bus. The EMIC then sends the appropriate electronic headlamp request and headlamp beam request messages to the TIPM over the CAN data bus. The TIPM responds to these messages by providing a pulse width modulated voltage output to the headlamps through high side drivers on the right and left low and high beam feed circuits to illuminate the selected headlamp filaments. The TIPM also sends the appropriate electronic messages to the EMIC to control the illumination of the high beam indicator. When the optical horn feature is selected, the low beams will shut OFF about 200 milliseconds after the high beams are activated.

The TIPM also 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. The TIPM provides a battery saver (load shedding) feature for the headlamps, which will turn these lamps OFF if they are left ON for more than about eight minutes with the ignition switch in the LOCK position. The SCM and the EMIC each provide a fail-safe feature for the headlamps, which will cause the TIPM to turn the low beam headlamps ON automatically if there is no input available from the left multi-function switch. The TIPM also provides a fail- safe feature for the headlamps that will turn the headlamps ON automatically whenever a loss of CAN bus communication is detected with the ignition switch in the ON position.

Each headlamp includes an integral reflector adjustment screw (domestic markets) or screws (export markets) to be used for static aiming of the headlamps and front fog lamps.

HEADLAMP DELAY

The headlamp delay feature includes the left (lighting) multi-function switch, the SCM, the EMIC and the TIPM. This feature has customer programmable delay intervals of 0 seconds (disabled), 30 seconds, 60 seconds and 90 seconds. If the left multi-function switch remains in the headlamp ON position until after the ignition switch is turned to the OFF position, then the headlamps will remain illuminated until after the selected delay interval has elapsed. The park lamps will not stay ON during the headlamp delay interval. The default delay

interval is zero seconds (disabled), but can be reprogrammed by the customer using the customer programmable features function of the EMIC.

HEADLAMP LEVELING

In certain markets where required, a headlamp leveling system is provided on the vehicle. The headlamp leveling system includes unique front headlamp units each connected to a headlamp leveling actuator motor, and a rocker-actuated headlamp leveling switch integral to the switch pod in the instrument panel center stack. The headlamp leveling system allows the headlamp beams to be adjusted to one of four vertical positions to compensate for changes in inclination caused by the loading of the vehicle suspension. The leveling motors are mechanically connected through an integral pushrod to the adjustable headlamp mounting collar.

Each time the headlamp leveling switch is depressed the circuitry of the switch pod provides an electronic select status up or select status down message input to the EMIC over the LIN data bus. The EMIC then sends the appropriate electronic select request up or select request down messages to the TIPM over the CAN data bus. The TIPM responds to these messages by providing a voltage output to the headlamp leveling motors through high side drivers on the headlamp leveling motor right and left signal circuits to move the headlamp reflectors to the selected position based upon the voltage input received from the TIPM. The TIPM also sends the appropriate electronic messages back to the EMIC and the EMIC relays the message back to the switch to control the illumination of the 1 , 2 , or 3 Light Emitting Diode (LED) selected position indicator in the leveling switch button. The EMIC and TIPM logic will only allow the headlamp leveling system to operate while the ignition switch is in the ON position and the exterior lighting is turned ON.

PARK LAMPS

The park lamps system includes the left (lighting) multi-function switch, the SCM, the EMIC and the TIPM. The front park/turn lamp and the position lamp bulbs each have a path to ground at all times through their connection to the engine compartment wire harness. The engine compartment wire harness has takeouts with eyelet terminals that are secured by nuts to ground studs on the front end sheet metal within the engine compartment. The rear lamp units and license plate 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 nut to a ground stud on the body sheet metal within the passenger compartment.

The SCM monitors a hard wired multiplex input from the left multi-function switch, then sends the appropriate electronic headlamp switch status messages to the EMIC over the LIN data bus. Then the EMIC relays the appropriate electronic message to the TIPM over the CAN data bus. The TIPM responds to these messages by providing a battery voltage output to the appropriate lamp bulbs through high side drivers on the proper park/tail/license/running lamp right and left circuits. The TIPM and the SCM also send the appropriate electronic messages to the EMIC to control the illumination and lighting level of the panel lamps.

The TIPM provides a battery saver (load shedding) feature for the park lamps, which will turn these lamps OFF if they are left ON for more than about eight minutes with the ignition switch in the LOCK position. The SCM and the EMIC each provide a fail-safe feature for the park lamps, which will send an electronic message to the TIPM to turn these lamps ON automatically if there is no input available from the left multi-function switch. The TIPM also provides a fail-safe feature for the park lamps that will turn these lamps ON automatically whenever a loss of CAN bus communication is detected with the ignition switch in the ON position.

REAR FOG LAMPS

Rear fog lamps are installed on vehicles manufactured for all export markets. The rear fog lamp system includes the left (lighting) multi-function switch, the SCM, the EMIC and the TIPM. The rear fog 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 nut to a ground stud on the body sheet metal within the passenger compartment.

The SCM monitors a hard wired multiplex input from the left multi-function switch to determine whether the rear fog lamps are selected, then sends electronic rear fog lamp switch status messages to the EMIC over the LIN data bus. Then the EMIC relays an electronic rear fog lamp request message to the TIPM over the CAN data bus. The TIPM responds to this message by providing a battery voltage output to the rear fog lamp bulbs through high side drivers on the fog lamp relay control rear circuit. The TIPM also sends the appropriate electronic message back to the EMIC to control the rear fog lamp indicator.

The TIPM will automatically energize and de-energize the front fog lamps in concert with the rear fog lamps. The TIPM also provides a battery saver (load shedding) feature for the rear fog lamps, which will turn these lamps OFF if they are left ON for more than about eight minutes with the ignition switch in the LOCK position.

TRAILER TOW WIRING

Domestic market vehicles equipped with an optional trailer tow package include a trailer tow take out of the body wire harness connected to a molded, seven-way trailer tow connector and an integral cover that are snapped into a bracket on the trailer hitch receiver platform.

TURN SIGNAL LAMPS

The turn signal lamps system includes the left (lighting) multi-function switch, the SCM, the EMIC and the TIPM. The front turn signal lamp bulbs each have a path to ground at all times through their connection to the engine compartment wire harness. The engine compartment wire harness has a takeout with an eyelet terminal that is secured by a nut to a ground stud on the body sheet metal within the engine compartment. 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 nut to a ground stud on the body sheet metal within the passenger compartment.

The SCM monitors a hard wired multiplex input from the left multi-function switch to determine the status of the turn signal switch, then sends the appropriate electronic turn signal switch status messages to the EMIC over the LIN data bus. Then the EMIC relays an electronic turn signal request message to the TIPM over the CAN data bus. The TIPM responds to these messages by controlling a battery voltage output and the flash rate for either the right or left turn signal lamps through high side drivers on the appropriate right or left turn signal feed circuits. The TIPM also sends the appropriate electronic messages back to the EMIC to control the illumination and flash rate of the right or left turn signal indicators, as well as to control the click rate of an electromechanical relay soldered onto the EMIC electronic circuit board that emulates the sound emitted by a conventional turn signal flasher.

The EMIC also provides a turn signal ON warning that will generate repetitive chimes to indicate that a turn signal has been active continuously for 1.6 kilometers (1 mile) with the vehicle speed greater than 22 kilometers-per-hour (15 miles-per hour). Vehicles built for markets other than the United States and Canada have a revised distance threshold of 4 kilometers (2.49 miles) for this feature. The chime will continue until the turn signal input becomes inactive or until the vehicle speed message indicates that the speed is less than 22 kilometers-per-hour (15 miles-per-hour), whichever occurs first.

LAMPS/LIGHTING - EXTERIOR

WARNING: To avoid serious or fatal injury eye protection should be used when servicing any glass components.

CAUTION: Do not contaminate the glass of halogen bulbs with fingerprints or allow contact with other possibly oily surfaces. Reduced bulb life will result.

CAUTION: Do not use bulbs with higher candle power than indicated in the BULB APPLICATION TABLE. See SPECIFICATIONS. In addition, do not use fuses, circuit breakers or relays having greater amperage value than indicated on the fuse panel or in the Owner's Manual. Damage to lamps, lenses, wiring and other related electrical components can result.

LAMPS/LIGHTING - EXTERIOR

WARNING: To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, Occupant Classification System (OCS), seat belt tensioner, impact sensor, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper precautions could result in accidental airbag deployment.

NOTE: When diagnosing the exterior lighting circuits, remember that high generator output can burn out bulbs rapidly and repeatedly; and, that dim or flickering bulbs can be caused by low generator output or poor battery condition. If one of these symptoms is a problem on the vehicle, be certain to diagnose the battery and charging system, then repair as necessary.

NOTE: A good ground is necessary for proper lighting operation. If a lighting problem is being diagnosed that involves multiple symptoms, systems, or components, the problem can often be traced to a loose, corroded, or open ground.

The lamps and the hard wired 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.

CONDITION POSSIBLE CAUSES CORRECTION

BACKUP LAMP DOES NOT 1. Ineffective or missing bulb. 1. Test and replace backup lamp bulb if ILLUMINATE required. 2. Ineffective ground circuit. 2. Test and repair open backup lamp ground circuit if required. 3. Ineffective feed circuit. 3. Test and repair open backup lamp feed circuit if required. 4. Ineffective switch. 4. Test and replace backup lamp switch (manual transmission) or transmission range sensor (automatic transmission) if required. 5. Ineffective TIPM inputs or 5. Use a diagnostic scan tool to test the outputs. TIPM inputs and outputs. Refer to the appropriate diagnostic information.

BACKUP LAMP DOES NOT 1. Ineffective feed circuit.    1. Test and repair shorted backup lamp
    EXTINGUISH                                       feed circuit if required.
                     2. Ineffective switch.          2. Test and replace backup lamp switch

(manual transmission) or transmission range sensor (automatic transmission) if required. 3. Ineffective TIPM inputs or 3. Use a diagnostic scan tool to test the outputs. TIPM inputs and outputs. Refer to the appropriate diagnostic information.

CONDITION POSSIBLE CAUSES CORRECTION

BRAKE LAMP DOES NOT 1. Ineffective or missing bulb. 1. Test and replace brake lamp bulb if ILLUMINATE required. 2. Ineffective ground circuit. 2. Test and repair open brake lamp ground circuit if required. 3. Ineffective fuse. 3. Test and replace the fuse in the TIPM if required. 4. Test and repair open brake lamp switch 4. Ineffective feed circuit. output circuit or stop lamp output circuit if required. 5. Test and replace brake lamp switch if 5. Ineffective switch. required. 6. Ineffective TIPM inputs or 6. Use a diagnostic scan tool to test the outputs. TIPM inputs and outputs. Refer to the appropriate diagnostic information.

 BRAKE LAMP DOES NOT 1. Ineffective feed circuit.    1. Test and repair shorted brake lamp
     EXTINGUISH                                      switch output circuit or stop lamp output

circuit if required. 2. Adjust the brake lamp switch if 2. Improperly adjusted switch. required. 3. Test and replace brake lamp switch if 3. Ineffective switch. required. 4. Ineffective TIPM inputs or 4. Use a diagnostic scan tool to test the outputs. TIPM inputs and outputs. Refer to the appropriate diagnostic information.

DAYTIME RUNNING LAMPS

NOTE: Before performing the following tests, determine whether the headlamp low and high beams operate. If the headlamp low and high beams are also ineffective, diagnose and repair that problem before attempting to repair the Daytime Running Lamps.

CONDITION POSSIBLE CAUSES CORRECTION

DAYTIME RUNNING          1. Incorrect TIPM               1. Use a diagnostic scan tool to check and
    LAMPS WILL NOT          programming.                    configure TIPM if required.
      ILLUMINATE            2. Automatic transmission in    2. Place the transmission gear selector
                            PARK position.                  lever in any position except PARK.
                            3. Parking brake applied.       3. Release the parking brake.
                            4. Engine not running.          4. Start the engine.
                            5. Ineffective TIPM inputs or   5. Use a diagnostic scan tool to test the
                            outputs.                        TIPM inputs and outputs. Refer to the

appropriate diagnostic information.

CONDITION POSSIBLE CAUSES CORRECTION

FRONT FOG LAMP DOES 1. Ineffective or missing bulb. 1. Test and replace front fog lamp bulb if NOT ILLUMINATE required. 2. Ineffective ground circuit. 2. Test and repair open front fog lamp ground circuit if required. 3. Ineffective feed circuit. 3. Test and repair open front fog lamp feed circuit if required. 4. Use a diagnostic scan tool to test the 4. Ineffective EMIC (CCN) EMIC (CCN) inputs and outputs. Refer to inputs or outputs. the appropriate diagnostic information. 5. Ineffective TIPM inputs or 5. Use a diagnostic scan tool to test the outputs. TIPM inputs and outputs. Refer to the appropriate diagnostic information.

 FRONT FOG LAMP DOES 1. Ineffective feed circuit.    1. Test and repair shorted front fog lamp
   NOT EXTINGUISH                                    feed circuit if required.

2. Use a diagnostic scan tool to test the 2. Ineffective EMIC (CCN) EMIC (CCN) inputs and outputs. Refer to inputs or outputs. the appropriate diagnostic information. 3. Ineffective TIPM inputs or 3. Use a diagnostic scan tool to test the outputs. TIPM inputs and outputs. Refer to the appropriate diagnostic information.

HAZARD WARNING LAMPS

NOTE: The hazard switch is integral to the instrument panel switch bank, which communicates with the EMIC/CCN over the LIN data bus. Before performing any of the following tests, confirm whether the left and right turn signals operate satisfactorily. Then determine whether the other functions of the instrument panel switch bank are operational. If the turn signals are ineffective or operate improperly, or if the other instrument panel switch bank functions are ineffective, diagnose and repair those problems before attempting to repair the Hazard Warning Lamps.

CONDITION POSSIBLE CAUSES CORRECTION

HAZARD WARNING	1. Ineffective EMIC (CCN)	1. Use a diagnostic scan tool to test the
LAMPS DO NOT FLASH	inputs or outputs.	EMIC (CCN) inputs and outputs. Refer to

the appropriate diagnostic information.

2. Use a diagnostic scan tool to test the 2. Ineffective TIPM inputs or TIPM inputs and outputs. Refer to the outputs. appropriate diagnostic information.

HAZARD WARNING	1. Ineffective EMIC (CCN)	1. Use a diagnostic scan tool to test the
LAMPS DO NOT STOP	inputs or outputs.	EMIC (CCN) inputs and outputs. Refer to
FLASHING	the appropriate diagnostic information.

2. Use a diagnostic scan tool to test the 2. Ineffective TIPM inputs or TIPM inputs and outputs. Refer to the outputs. appropriate diagnostic information.

CONDITION POSSIBLE CAUSES CORRECTION

HEADLAMP DOES NOT   1. Ineffective or missing bulb. 1. Test and replace headlamp bulb if
     ILLUMINATE                                       required.

2. Ineffective ground circuit. 2. Test and repair open headlamp ground circuit if required. 3. Ineffective feed circuit. 3. Test and repair open headlamp low beam or high beam feed circuit if required. 4. Use a diagnostic scan tool to test the 4. Ineffective EMIC (CCN) EMIC (CCN) inputs and outputs. Refer to inputs or outputs. the appropriate diagnostic information. 5. Ineffective TIPM inputs or 5. Use a diagnostic scan tool to test the outputs. TIPM inputs and outputs. Refer to the appropriate diagnostic information.

 HEADLAMP DOES NOT 1. Ineffective feed circuit.       1. Test and repair shorted headlamp low
     EXTINGUISH                                       beam or high beam feed circuit if

required.

                      2. Ineffective EMIC (CCN)       2. Use a diagnostic scan tool to test the
                      inputs or outputs.              EMIC (CCN) inputs and outputs. Refer to

the appropriate diagnostic information. 3. Ineffective TIPM inputs or 3. Use a diagnostic scan tool to test the outputs. TIPM inputs and outputs. Refer to the appropriate diagnostic information. HEADLAMPS ILLUMINATE 1. Loss of LIN or CAN data 1. Test and repair the LIN or CAN data WITH IGNITION ON AND bus communication. bus if required. Refer to the appropriate

HEADLAMP SWITCH OFF diagnostic information.

(FAIL-SAFE OPERATION)

HEADLAMPS WILL NOT 1. Ineffective EMIC (CCN)         1. Use a diagnostic scan tool to test the
 SWITCH FROM HIGH TO inputs or outputs.                EMIC (CCN) inputs and outputs. Refer to
  LOW BEAMS, OR FROM                                   the appropriate diagnostic information.
   LOW TO HIGH BEAMS 2. Ineffective TIPM inputs or     2. Use a diagnostic scan tool to test the
                       outputs.                        TIPM inputs and outputs. Refer to the

appropriate diagnostic information.

HEADLAMP LEVELING

NOTE: The headlamp leveling switch is integral to the instrument panel switch bank, which communicates with the EMIC/CCN over the LIN data bus. Before performing any of the following tests, confirm whether the park lamps operate satisfactorily. Then determine whether the other functions of the instrument panel switch bank are operational. If the park lamps are ineffective or operate improperly, or if the other instrument panel switch bank functions are ineffective, diagnose and repair those problems before attempting to repair the Headlamp Leveling function.

CONDITION POSSIBLE CAUSES CORRECTION

ONE LEVELING MOTOR IS 1. Ineffective ground circuit.1. Test and repair open leveling motor

     INEFFECTIVE                                    ground circuit if required.
                      2. Ineffective feed circuit.  2. Test and repair open leveling motor

feed circuit if required. 3. Ineffective signal circuit. 3. Test and repair open headlamp leveling motor signal circuit if required. 4. Ineffective motor. 4. Test and replace headlamp leveling motor if required.

BOTH LEVELING MOTORS 1. Ineffective EMIC (CCN)      1. Use a diagnostic scan tool to test the
   ARE INEFFECTIVE   inputs or outputs.             EMIC (CCN) inputs and outputs. Refer to

the appropriate diagnostic information.

                     2. Ineffective motor ground    2. Test and repair open leveling motor
                     circuit.                       ground circuit if required.
                     3. Ineffective motor feed      3. Test and repair open leveling motor
                     circuit.                       feed circuit if required.

4. Ineffective signal circuit. 4. Test and repair open or shorted headlamp leveling motor signal circuit if required. 5. Ineffective TIPM inputs or 5. Use a diagnostic scan tool to test the outputs. TIPM inputs and outputs. Refer to the appropriate diagnostic information. 6. Ineffective motors. 6. Test and replace leveling motors if required.

CONDITION POSSIBLE CAUSES CORRECTION

PARK LAMP DOES NOT     1. Ineffective or missing bulb. 1. Test and replace park lamp bulb if
      ILLUMINATE                                         required.

2. Ineffective ground circuit. 2. Test and repair open park lamp ground circuit if required. 3. Ineffective feed circuit. 3. Test and repair open park lamp feed circuit if required. 4. Use a diagnostic scan tool to test the 4. Ineffective EMIC (CCN) EMIC (CCN) inputs and outputs. Refer to inputs or outputs. the appropriate diagnostic information. 5. Ineffective TIPM inputs or 5. Use a diagnostic scan tool to test the outputs. TIPM inputs and outputs. Refer to the appropriate diagnostic information.

  PARK LAMP DOES NOT     1. Ineffective feed circuit.    1. Test and repair shorted park lamp feed
      EXTINGUISH                                         circuit if required.

REAR FOG LAMPS

NOTE: The rear fog lamp switch is integral to the left multi-function switch/SCM, which communicates with the EMIC/CCN over the LIN data bus. Before performing any of the following tests, determine whether the other functions of the left multi- function switch/SCM are operational. If the other left multi-function switch/SCM functions are ineffective, diagnose and repair that problem before attempting to repair the Rear Fog Lamps.

CONDITION POSSIBLE CAUSES CORRECTION

REAR FOG LAMP DOES       1. Ineffective or missing bulb. 1. Test and replace rear fog lamp bulb if
NOT ILLUMINATE                                           required.

2. Ineffective ground circuit. 2. Test and repair open rear fog lamp ground circuit if required. 3. Ineffective feed circuit. 3. Test and repair open fog lamp relay

control rear circuit if required. 4. Use a diagnostic scan tool to test the 4. Ineffective EMIC (CCN) EMIC (CCN) inputs and outputs. Refer to inputs or outputs. the appropriate diagnostic information. 5. Use a diagnostic scan tool to check and

                             5. Incorrect TIPM               correct the TIPM configuration settings if
                             configuration.                  required. Refer to the appropriate

diagnostic information.

                             6. Ineffective TIPM inputs or   6. Use a diagnostic scan tool to test the
                             outputs.                        TIPM inputs and outputs. Refer to the

appropriate diagnostic information.

REAR FOG LAMP DOES           1. Ineffective feed circuit.    1. Test and repair shorted fog lamp relay
NOT EXTINGUISH                                               control rear circuit if required.

2. Use a diagnostic scan tool to test the 2. Ineffective EMIC (CCN) EMIC (CCN) inputs and outputs. Refer to inputs or outputs. the appropriate diagnostic information.

                             3. Ineffective TIPM inputs or   3. Use a diagnostic scan tool to test the
                             outputs.                        TIPM inputs and outputs. Refer to the

appropriate diagnostic information.

CONDITION POSSIBLE CAUSES CORRECTION

ONE TURN SIGNAL LAMP 1. Ineffective or missing bulb. 1. Test and replace turn signal bulb if DOES NOT ILLUMINATE required. 2. Ineffective ground circuit. 2. Test and repair open ground circuit if required. 3. Test and repair open right or left turn 3. Ineffective feed circuit. signal feed circuit if required. 4. Ineffective TIPM inputs or 4. Use a diagnostic scan tool to test the outputs. TIPM inputs and outputs. Refer to the appropriate diagnostic information.

 ALL RIGHT SIDE OR ALL 1. Ineffective feed circuit.   1. Test and repair open right or left turn
 LEFT SIDE TURN SIGNAL                                signal feed circuit if required.
 LAMPS (OR BOTH SIDES)                                2. Use a diagnostic scan tool to test the
     DO NOT FLASH      2. Ineffective EMIC (CCN)

EMIC (CCN) inputs and outputs. Refer to inputs or outputs. the appropriate diagnostic information. 3. Ineffective TIPM inputs or 3. Use a diagnostic scan tool to test the outputs. TIPM inputs and outputs. Refer to the

appropriate diagnostic information. ALL RIGHT SIDE OR ALL 1. Ineffective or missing bulb. 1. Test and replace turn signal bulb if LEFT SIDE TURN SIGNALS required. FLASH TOO RAPIDLY 2. Ineffective ground circuit. 2. Test and repair open bulb ground

(MORE THAN 100 FLASHES                                  circuit if required.
       PER MINUTE)      3. Ineffective feed circuit.    3. Test and repair open right or left turn

signal feed circuit if required.

REPEATER (EXPORT ONLY) WY5W

Torque specifications

DESCRIPTION	N.m	Ft. Lbs.	In. Lbs.
Center High Mounted	2.5	-	20

Stop Lamp (CHMSL) Mounting Screws Front Fog Lamp 2 - 18 Mounting Screws Front Lamp Unit 3 - 23 Mounting Nuts Left Multi-Function 1 - 10 Switch Mounting Screw Park Brake Switch 2.5 - 24 Mounting Screw Rear Lamp Unit 5.5 - 50 Mounting Screws Rear Lamp Unit Socket 1 - 12 Plate Mounting Screws

SWITCH-BACKUP LAMP

FRONT LAMP MOISTURE CLEARING📷 1

Some occasional moisture accumulation inside a vented front lamp unit is normal and appears as a fogging on the inside of the lamp lens, similar to the fog that sometimes appears on the inside of a windshield. This condition is caused by rapidly changing temperature and humidity levels between the air internal and external to the lamp, and will usually dissipate once the temperature and humidity conditions have been allowed to stabilize. Accelerated removal of such moisture may be accomplished by activating the headlamps on HIGH beam for about 15 minutes.

However, water droplets larger than 1 millimeter (0.039 inch) in size accumulated on the inside of the lamp lens, water droplets visible on most internal lamp surfaces or large quantities of water within the lamp indicates a problem with the lamp sealing that has allowed excessive amounts of water to enter the lamp. Once such excessive moisture has entered the lamp, it will always be present and will never disappear. A lamp with permanent internal moisture should be replaced.

EXTERIOR LIGHTING

Following are descriptions of how the left multi-function switch is operated to control the many exterior lighting functions and features it provides:

 Front Fog Lamps - The optional front fog lamps are requested when the left multi-function switch control knob is pulled outward to the front fog lamps detent position. The SCM reads the resistor multiplexed input from the left multi-function switch and sends an electronic exterior lighting switch status message over the LIN data bus to the EMIC, which relays an electronic exterior lighting switch request message over the CAN data bus to other electronic modules in the vehicle. The switch control knob incorporates an internal cam mechanism that will only allow the front fog lamps to be selected while the headlamp ON position is also selected, and will automatically move the control knob to the front fog lamps OFF position when the control knob is rotated to deselect the headlamps.  Headlamps - The headlamps are requested when the left multi-function switch control knob is rotated to the headlamps ON detent position. The SCM reads the resistor multiplexed input from the left multi- function switch and sends an electronic exterior lighting switch status message over the LIN data bus to the EMIC, which relays an electronic exterior lighting switch request message over the CAN data bus to other electronic modules in the vehicle.  Headlamp Beam Selection - The headlamp high beams are selected when the left multi-function switch control stalk is pushed forward to the high beam selection detent position. The low beams are selected when the control stalk is pulled rearward to the low beam selection detent position. The SCM reads the resistor multiplexed input from the left multi-function switch and sends an electronic beam select switch

status message over the LIN data bus to the EMIC, which relays an electronic beam select switch request message over the CAN data bus to other electronic modules in the vehicle.  Headlamp Optical Horn - The headlamp optical horn is selected each time the left multi-function switch control stalk is pulled fully rearward to a momentary position. The headlamp high beams will remain illuminated for as long as the control stalk is held in this momentary position and the low beams will be restored when the control stalk is released. The SCM reads the resistor multiplexed input from the left multi-function switch and sends an electronic beam select switch status message over the LIN data bus to the EMIC, which relays an electronic beam select switch request message over the CAN data bus to other electronic modules in the vehicle.  Park Lamps - The headlamps are requested when the left multi-function switch control knob is rotated to the park lamps ON detent position. The SCM reads the resistor multiplexed input from the left multi- function switch and sends an electronic exterior lighting switch status message over the LIN data bus to the EMIC, which relays an electronic exterior lighting switch request message over the CAN data bus to other electronic modules in the vehicle.  Rear Fog Lamps - The optional rear fog lamps are requested when the left multi-function switch control knob is pulled outward to the front fog lamps detent position and then rotated to the rear fog lamps detent position. The SCM reads the resistor multiplexed input from the left multi-function switch and sends an electronic exterior lighting switch status message over the LIN data bus to the EMIC, which relays an electronic exterior lighting switch request message over the CAN data bus to other electronic modules in the vehicle. The switch control knob incorporates an internal cam mechanism that will only allow the rear fog lamps to be selected while the front fog lamps ON position is also selected, and will automatically move the control knob to the rear fog lamp OFF position when the control knob is pushed in to deselect the front fog lamps.  Turn Signal Control - The turn signals are requested when the left multi-function switch control stalk is moved downward (left signal) or upward (right signal). The control stalk has a detent position in each direction that provides turn signals with automatic cancellation, and an intermediate, momentary position in each direction that automatically provides three turn signal blinks as a LANE CHANGE feature when the control stalk is tapped or will energize the turn signals for as long as the control stalk is held in the momentary position. When the control stalk is moved to a detent turn signal switch position, a cancel actuator extends through an opening in the side of the clockspring case toward the center of the steering column. A turn signal cancel cam that is integral to the clockspring rotor rotates with the steering wheel and the cam lobes contact the cancel actuator when it is extended from the left multi-function switch. When the steering wheel is rotated during a turning maneuver, one of the turn signal cancel cam lobes will contact the turn signal cancel actuator. The cancel actuator latches against the cancel cam rotation in the direction opposite that which is signaled. If the left turn signal detent is selected, the lobes of the cancel cam will ratchet past the cancel actuator when the steering wheel is rotated to the left, but will unlatch the cancel actuator as the steering wheel rotates to the right and returns to center, which will cancel the turn signal event and release the control stalk from the detent so it returns to the neutral OFF position. The SCM reads the resistor multiplexed input from the left multi-function switch and sends an electronic exterior lighting switch status message over the LIN data bus to the EMIC, which relays an electronic exterior lighting switch request message over the CAN data bus to other electronic modules in the vehicle.

INTERIOR LIGHTING

Following are descriptions of the how the left multi-function switch is operated to control the many interior lighting functions and features it provides:

 Interior Lamps Defeat - The interior lamps defeat feature is requested when the left multi-function switch control sleeve is rotated to the interior lamps DEFEAT detent position. The SCM reads the resistor multiplexed input from the left multi-function switch and sends an electronic interior lighting switch status message over the LIN data bus to the EMIC, which relays an electronic interior lighting switch request message over the CAN data bus to other electronic modules in the vehicle.  Interior Lamps On - The interior lamps ON feature is requested when the left multi-function switch control sleeve is rotated to the interior lamps ON detent position. The SCM reads the resistor multiplexed input from the left multi-function switch and sends an electronic interior lighting switch status message over the LIN data bus to the EMIC, which relays an electronic interior lighting switch request message over the CAN data bus to other electronic modules in the vehicle.  Panel Lamps Dimming - The panel lamps dimming function is active only when the left multi-function switch control knob is in any exterior lighting ON position. With the exterior lighting ON, the panel lamps dimming level is requested when the left multi-function switch control sleeve is rotated to any one of five minor detent positions. The SCM reads the resistor multiplexed input from the left multi-function switch and sends an electronic interior lighting switch status message over the LIN data bus to the EMIC, which relays an electronic interior lighting switch request message over the CAN data bus to other electronic modules in the vehicle.  Parade Mode - The PARADE (or funeral) mode is active only when the left multi-function switch control knob is in any exterior lighting ON position. With the exterior lighting ON, the PARADE mode is requested when the left multi-function switch control sleeve is rotated to the PARADE mode detent position. The SCM reads the resistor multiplexed input from the left multi-function switch and sends an electronic interior lighting switch status message over the LIN data bus to the EMIC, which relays an electronic interior lighting switch request message over the CAN data bus to other electronic modules in the vehicle.

PARK BRAKE SWITCH📷 1

The park brake switch (1) is located on the park brake lever mechanism on the floor panel transmission tunnel below the center floor console. This switch includes a spade-type output terminal (2) that connects the switch to the vehicle electrical system through a dedicated take out and connector of the body wire harness. The output terminal is integral to the stationary contact within a molded plastic insulator. A locating tab (4) on the insulator engages a slot in the park brake lever mechanism for positive switch location. External to the insulator is a movable leaf contact (3) with an integral grounding lug on one end and an integral actuating lever and follower on the opposite end. The switch is secured to and grounded by a single screw to the park brake lever mechanism.

The park brake switch cannot be adjusted or repaired and, if ineffective or damaged, it must be replaced.

PARK BRAKE SWITCH📷 1

The park brake switch is a normally closed, mechanically actuated leaf contact switch that is operated by the park brake lever mechanism. The switch is grounded through its mounting to the park brake lever mechanism

and provides a ground input to the ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN) on a park brake switch sense circuit whenever the park brake is applied, and opens this circuit whenever the park brake is released. The park brake switch sense input to the EMIC is used for control of the brake indicator and may also be used as a logic input for other electronic features in the vehicle.

The park brake switch as well as the hard wired inputs and outputs of the switch may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information.

PARK BRAKE SWITCH

NOTE: If the brake indicator stays ON with the ignition switch in the ON position and the park brake released, or comes ON while driving, the brake system must be diagnosed and repaired prior to performing the following tests. Refer to DIAGNOSIS AND TESTING . If no brake system problem is found, the following procedures will help to locate a shorted or open park brake switch sense circuit, or an ineffective park brake switch.

INDICATOR ILLUMINATES DURING BULB TEST, BUT DOES NOT WHEN PARK BRAKE APPLIED

1. Disconnect and isolate the battery negative cable. Disconnect the wire harness connector for the park brake switch from the switch terminal. Apply the parking brake. Check for continuity between the park brake switch terminal and a good ground. There should be continuity. If OK, go to step 2. If not OK, replace the ineffective park brake switch. 2. Disconnect the instrument panel wire harness connector from the cluster connector receptacle. Check for continuity between the park brake switch sense circuit cavities of the wire harness connector for the park brake switch and the wire harness connector for the instrument cluster. There should be continuity. If not OK, repair the open park brake switch sense circuit between the park brake switch and the instrument cluster as required.

INDICATOR REMAINS ILLUMINATED - BRAKE SYSTEM CHECKS OK

1. Disconnect and isolate the battery negative cable. Disconnect the wire harness connector for the park brake switch from the switch terminal. Check for continuity between the terminal of the park brake switch and a good ground. There should be no continuity with the park brake released, and continuity with the park brake applied. If OK, go to step 2. If not OK, replace the ineffective park brake switch.

2. Disconnect the instrument panel wire harness connector from the cluster connector receptacle. Check for continuity between the park brake switch sense circuit cavity of the wire harness connector for the park brake switch and a good ground. There should be no continuity. If not OK, repair the shorted park brake switch sense circuit between the park brake switch and the instrument cluster as required.

PARK BRAKE SWITCH📷 1

Screw

1. Disconnect and isolate the battery negative cable. 2. Remove the console from the floor panel transmission tunnel. Refer to REMOVAL . 3. Apply the parking brake lever mechanism (3). 4. Disconnect the wire harness connector (2) from the terminal of the park brake switch (1) located on the left side of the park brake lever mechanism. 5. Remove the screw (4) that secures the park brake switch to the park brake lever mechanism. 6. Remove the switch from the park brake lever mechanism.

PARK BRAKE SWITCH📷 1

Screw

1. Position park brake switch (1) onto the left side of the park brake lever mechanism (3). Be certain to engage the locating pin on the back of the switch insulator into the locating slot in the lever mechanism bracket. 2. Install and tighten the screw (4) that secures the park brake switch to the park brake lever mechanism. Tighten the screw to 2.5 N.m (24 in. lbs.). 3. Reconnect the wire harness connector (2) to the terminal of the park brake switch. 4. Reinstall the console onto the floor panel transmission tunnel. Refer to INSTALLATION . 5. Reconnect the battery negative cable. 6. Turn the ignition switch to the On position and check for proper brake indicator operation with the parking brake applied, then release the parking brake and check that the brake indicator extinguishes.

PARK/TURN SIGNAL LAMP

TRAILER TOW CONNECTOR📷 2

1. Disconnect and isolate the battery negative cable. 2. Reach underneath and behind the bracket (2) for the trailer tow connector (3) to access and disconnect the body wire harness connector (1).

3. Grasp the trailer tow connector (1) firmly from the face of the bracket (2) and rotate it 90 degrees counterclockwise to unlock it. 4. Pull the trailer tow connector straight rearward to remove it from the hitch receiver bracket.

TRAILER TOW CONNECTOR📷 2

1. Align the trailer tow connector (1) to the keyed mounting hole in the bracket (2) of the trailer hitch receiver. 2. Insert the connector into the bracket until it is firmly seated. 3. Rotate the connector clockwise 90 degrees to lock it into place.

4. Reach underneath and behind the bracket (2) for the trailer tow connector (3) to access and reconnect the body wire harness connector (1). 5. Reconnect the battery negative cable.

TRAILER TOW WIRING

TRAILER TOW WIRING📷 1

Vehicles equipped with an optional factory-installed trailer towing package have a rear body wire harness that includes a trailer tow wiring take out (2) secured beneath the rear underbody with retainer clips (1 and 3). A molded connector (4) at the end of the take out is connected to a heavy duty, sealed, 7-pin trailer tow connector located on a bracket on the trailer hitch receiver. The rear body harness includes a second take out with a trailer tow relay connector bank and the four trailer tow relays that isolate the right turn signal, left turn signal, and brake lamp circuits of the vehicle from the electrical system of the trailer. The fourth relay in the connector bank provides a fused ignition switch output (run) source of battery voltage to the trailer tow connector through a trailer tow relay output circuit.

The package also includes an adapter harness (stored beneath the left rear seat cushion of the vehicle when it is shipped from the factory) that adapts the 7-pin trailer tow connector to a standard, light-duty, 4-pin trailer tow connector. Refer to the appropriate wiring information.

TURN SIGNAL CANCEL CAM