LampsLighting - Interior - Service Information

LAMPS/LIGHTING - INTERIOR - SERVICE INFORMATION📷 1

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LAMPS/LIGHTING - INTERIOR📷 1

The interior lighting system for this vehicle includes incandescent lighting on two separate circuits: the dome/courtesy lamp circuit and the panel lamps dimmer circuit. The lamps on the dome/courtesy circuit include:

 Cargo Lamp (5) - A cargo lamp is located in the headliner near the rear roof header and is controlled by both the courtesy lamp circuit and an independent lens-actuated switch to illuminate the rear cargo area of the vehicle.  Courtesy Lamps (1) - Available courtesy lamps are located below both the right and left side of the instrument panel, and are controlled by the courtesy lamp circuit.  Front Dome Lamp (2) - A standard front dome lamp including two bulbs is located in the headliner

between the sun visors near the windshield header. These lamps are controlled by both the courtesy lamp circuit and independent push button switches on the lamp housing adjacent to each bulb.  Reading Lamps (2) - Available front seat driver side and passenger side reading lamps located in the optional mini overhead console in the headliner between the sun visors near the windshield header are controlled by both the courtesy lamp circuit and independent lens-actuated switches.  Second Row Dome/Reading Lamps (4) - The second row seat dome/reading lamps are controlled by both the courtesy lamp circuit and independent lens-actuated switches. These lamps are integral to the grab handles located on the headliner above each rear door opening adjacent to each outboard second row seating position.  Vanity Lamps (3) - An optional single-intensity vanity lamp is located above a covered mirror on both the right and left sun visors. These lamps are controlled by an integral vanity mirror cover-actuated switch on the courtesy lamp circuit.

Most controls on the instrument panel and elsewhere on the interior of the vehicle are illuminated by the panel lamps dimmer circuit for night visibility. All except the automatic transmission gear selector bezel lamp have miniature incandescent bulbs, Light-Emitting Diode (LED) units or a combination of the two lighting types that are soldered to internal circuit boards and are not serviceable.

The optional automatic transmission gear selector bezel lamp is located on the left side of the gear selector lever mechanism just beneath the bezel on the floor panel transmission tunnel. This lamp has a replaceable incandescent bulb.

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

 Door Ajar Switches - A door ajar switch is integral to the door latch mechanism of each front and rear door.  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 .  Left Multi-Function Switch - The left (lighting) multi-function switch is located on the steering column, just below the steering wheel. A control sleeve on the control stalk that extends from the left side of the switch is used to select the panel lamps dimmer lighting level or the courtesy lamp circuit operating mode. Refer to DESCRIPTION .  Liftgate Ajar Switch - A liftgate ajar switch is integral to the latch mechanism of the liftgate.

 Liftgate Flip-Up Glass Ajar Switch - A liftgate flip-up glass ajar switch is integral to the latch mechanism of the liftgate flip-up glass.  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 .

Hard wired circuitry connects the interior lighting system components to the electrical system of the vehicle. These hard wired circuits are integral to several wire harnesses, which are routed throughout the vehicle and retained by many different methods. These circuits may be connected to each other, to the vehicle electrical

system and to the interior lighting 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 - INTERIOR

The lamps of the interior lighting system can be divided into two general classifications based upon the circuit that controls their operation: The courtesy lamp circuit (which includes the courtesy lamp load shed circuits for each lamp as well as the convenience circuits for those lamps with independent switching), or the panel lamps dimmer circuit. Following are paragraphs that briefly describe the operation of each of these interior lighting circuits.

The lamps and the hard wired circuits between components related to the interior 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 interior lighting system or the electronic controls or communication between modules and other devices that provide some features of the interior lighting system. The most reliable, efficient, and accurate means to diagnose the interior lighting system or the electronic controls and communication related to interior lighting system operation requires the use of a diagnostic scan tool.

LAMPS/LIGHTING - INTERIOR

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

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 a 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 - INTERIOR

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 interior 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.

CONDITION POSSIBLE CAUSES CORRECTION

A SINGLE LAMP IN THE 1. Ineffective or missing bulb.            1. Test and replace the courtesy lamp
     COURTESY LAMP                                                bulb if required.
    CIRCUIT DOES NOT   2. Ineffective lamp switch.                2. Test and replace a map/reading lamp
       ILLUMINATE                                                 switch if required.
                       3. Ineffective ground circuit.             3. Test and repair the open ground circuit

if required. 4. Ineffective feed circuit. 4. Test and repair the open feed circuit if required. ALL LAMPS IN THE 1. Ineffective ground circuit. 1. Test and repair the open ground circuit

    COURTESY LAMP                                           if required.
    CIRCUIT DO NOT           2. Ineffective feed circuit.   2. Test and repair the open feed circuit if
      ILLUMINATE                                            required.
                      3. Courtesy DEFEAT feature            3. Turn courtesy DEFEAT feature OFF.

turned ON.

                      4. Ineffective courtesy lamp     4. Test and repair the courtesy lamp
                      control circuit.                 control circuit if required.

5. Ineffective EMIC inputs or 5. Use a diagnostic scan tool to test the

                      outputs.                         EMIC inputs and outputs.
 A SINGLE LAMP IN THE 1. Ineffective lamp switch.      1. Test and replace a map/reading lamp
    COURTESY LAMP                                      switch if required.

EXTINGUISH

ALL LAMPS IN THE	1. Ineffective ajar switch.	1. Test and replace a door ajar or liftgate
COURTESY LAMP	ajar switch if required.
CIRCUIT DO NOT	2. Ineffective ajar switch sense 2. Test and repair the shorted ajar switch
EXTINGUISH	circuit.	sense circuit if required.

3. Ineffective TIPM inputs or 3. Use a diagnostic scan tool to test the outputs. TIPM inputs and outputs. 4. Ineffective EMIC inputs or 4. Use a diagnostic scan tool to test the outputs. EMIC inputs and outputs.

CONDITION POSSIBLE CAUSES CORRECTION

A SINGLE LAMP DOES         1. Ineffective or missing bulb 1. Test and replace the lamp bulb or LED
    NOT ILLUMINATE           or Light Emitting Diode (LED) unit if required.

unit. 2. Ineffective ground circuit. 2. Test and repair the open lamp ground circuit if required. 3. Ineffective feed circuit. 3. Test and repair the open lamp feed circuit if required.

  A SINGLE LAMP DOES         1. Ineffective feed circuit.   1. Test and repair the shorted lamp feed
    NOT EXTINGUISH                                          circuit if required.
   ALL LAMPS DO NOT          1. Ineffective ground circuit. 1. Test and repair the open lamp ground
      ILLUMINATE                                            circuit if required.
                             2. Ineffective feed circuit.   2. Test and repair the open lamp feed

circuit if required.

                       3. Ineffective EMIC inputs or            3. Use a diagnostic scan tool to test the
                       outputs.                                 EMIC inputs and outputs.
 ALL LAMPS ILLUMINATE 1. Ineffective EMIC inputs or             1. Use a diagnostic scan tool to test the
  AT FULL INTENSITY AT outputs.                                 EMIC inputs and outputs.
      IGNITION ON      2. Loss of data bus                      2. Use a diagnostic scan tool to test the
                       communication.                           data bus.

DOOR AJAR SWITCH

This vehicle has one door ajar switch for each door. Each switch is concealed within and integral to its respective door latch unit. The switches are momentary leaf contact-type units that are actuated by the mechanisms internal to the door latch. A short pigtail wire and connector on each door latch connects the door ajar switch to the vehicle electrical system through its respective door wire harness.

The door ajar switches cannot be adjusted or repaired and, if ineffective or damaged, the door latch unit must be replaced. Refer to REMOVAL for front latch, or REMOVAL for rear latch.

FLIP-UP GLASS AJAR SWITCH

A liftgate flip-up glass ajar switch is standard equipment on this vehicle. The switch is concealed within and integral to the liftgate flip-up glass latch unit. The switch is a momentary leaf contact-type unit that is actuated by the flip-up glass latch mechanism. An integral connector receptacle on the flip-up glass latch connects the ajar switch to the vehicle electrical system through the liftgate wire harness.

The flip-up glass ajar switch cannot be adjusted or repaired and, if ineffective or damaged, the flip-up glass latch unit must be replaced. Refer to REMOVAL .

LIFTGATE AJAR SWITCH

A liftgate ajar switch is standard equipment on this vehicle. The switch is concealed within and integral to the liftgate latch unit. The switch is a momentary leaf contact-type unit that is actuated by the liftgate latch mechanism. An integral connector receptacle on the liftgate latch connects the liftgate ajar switch to the vehicle electrical system through the liftgate wire harness.

The liftgate ajar switch cannot be adjusted or repaired and, if ineffective or damaged, the liftgate latch unit must be replaced. Refer to REMOVAL .

DOOR AJAR SWITCH

The door ajar switches are actuated by the mechanisms internal to the door latch. When a door is closed and properly latched, its door ajar switch is an open circuit. When a door is open or only partially latched, the door ajar switch is a closed circuit. The door ajar switches are hard wired in series between a body ground and the Totally Integrated Power Module (TIPM). The TIPM reads the hard wired door ajar switch inputs through internal pull-ups, then uses these inputs to control many electronic functions and features of the vehicle. The TIPM also sends electronic door ajar switch status messages over the Controller Area Network (CAN) data bus.

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

FLIP-UP GLASS AJAR SWITCH

The liftgate flip-up glass ajar switch is actuated by the flip-up glass latch mechanism. When the flip-up glass is closed and properly latched, its ajar switch is an open circuit. When the glass is open or only partially latched, the ajar switch is a closed circuit. The flip-up glass ajar switch is hard wired in series between a body ground and the Totally Integrated Power Module (TIPM). The TIPM reads the hard wired flip-up glass ajar switch input through an internal pull-up, then uses this input to control many electronic functions and features of the vehicle. The TIPM also sends electronic flip-up glass ajar switch status messages over the Controller Area Network (CAN) data bus.

The flip-up glass ajar 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.

LIFTGATE AJAR SWITCH

The liftgate ajar switch is actuated by the liftgate latch mechanism. When the liftgate is closed and properly latched, its liftgate ajar switch is an open circuit. When the liftgate is open or only partially latched, the liftgate ajar switch is a closed circuit. The liftgate ajar switch is hard wired in series between a body ground and the Totally Integrated Power Module (TIPM). The TIPM reads the hard wired liftgate ajar switch input through an internal pull-up, then uses this input to control many electronic functions and features of the vehicle. The TIPM also sends electronic liftgate ajar switch status messages over the Controller Area Network (CAN) data bus.

The liftgate ajar 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.

CARGO LAMP

GEAR SELECTOR LAMP BULB📷 1

NOTE: This procedure applies only to vehicles equipped with an optional automatic

transmission.

1. Disconnect and isolate the battery negative cable. 2. Remove the center floor console from over the gear selector lever and bezel (2). 3. Firmly grasp the bulb socket (1) on the left lower edge of the bezel housing and rotate it counterclockwise about 30 degrees to unlock it. 4. Pull the socket and bulb straight out from the keyed opening in the housing. 5. Pull the base of the bulb straight out of the socket.

GEAR SELECTOR LAMP BULB📷 1

CAUTION: Always use the correct bulb size and type for replacement. An incorrect bulb size or type may overheat and cause damage to the lamp, the socket or the lamp wiring.

NOTE: This procedure applies only to vehicles equipped with an optional automatic transmission.

1. Align the base of the bulb with the gear selector bulb socket (1). 2. Push the bulb straight into the socket until the base is firmly seated. 3. Align the socket and bulb with the keyed opening on the left lower edge of the gear selector bezel (2) housing. 4. Insert the socket and bulb into the housing until the socket is firmly seated. 5. Rotate the socket clockwise about 30 degrees to lock it into place. 6. Reinstall the center floor console over the gear selector lever and bezel. 7. Reconnect the battery negative cable.

READING LAMP

READING LAMP BULB📷 3

NOTE: The reading lamps are integral to the mini overhead console in the headliner near the windshield.

1. Disconnect and isolate the battery negative cable. 2. Using a small thin-bladed screwdriver, gently pry the notched (forward) end (2) of the reading lamp lens away from the mini overhead console far enough to unsnap the lens from the two pivot pins (3) in the lamp housing. 3. Pull the notched end of the lens downward and slide it forward far enough to disengage the switch tab (1) on the rearward edge of the lens from between the mini overhead console and the switch plunger. 4. Remove the lens from the housing.

5. Using a small thin-bladed screwdriver, gently pry either side of the shield (1) inward from the lamp housing toward the reflector (2) and bulb (3) far enough to remove the shield from the housing.

6. Carefully unsnap the bulb (2) from the two bulb holders (1) within the lamp housing. 7. Remove the bulb from the lamp.

READING LAMP BULB📷 3

CAUTION: Always use the correct bulb size and type for replacement. An incorrect bulb size or type may overheat and cause damage to the lamp, the socket or the lamp wiring.

NOTE: The reading lamps are integral to the mini overhead console in the headliner

near the windshield.

1. Align the ends of the bulb (2) with the two bulb holders (1) within the mini overhead console lamp housing. 2. Carefully press the bulb firmly and evenly into the bulb holders until it snaps into place.

3. Position the shield (1) over the lamp reflector (2) and bulb (3) within the lamp housing. 4. Using hand pressure, push both sides of the shield up into the housing to secure it into place.

5. Engage the switch tab (1) on the rearward edge of the lens (2) between the mini overhead console and the switch plunger. 6. Position the pivots on both forward sides of the lens over the pivot pins (3) in the lamp housing. 7. Using hand pressure over both lens pivots, press upward firmly and evenly until both pivots snap into place. 8. Reconnect the battery negative cable.

VANITY LAMP