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LIGHTING SYSTEM


K ELECTRICAL

                                                                                                                                                                      A




                                                                                                          SECTION
                                                                                                    LIGHTING SYSTEM
                                                                                                                                      LT                              B



                                                                                                                                                                      C


                                                                                                                                                                      D


                                                                                                                                                                      E
                                                                  CONTENTS
PRECAUTIONS ......................................................... 5  .         Side) ...................................................................... 25
                                                                                                                                                            .         F
 Precautions for Supplemental Restraint System                                     High Beam Indicator Lamp Does Not Illuminate .... 26                     .
 (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                           Headlamp Low Beam Does Not Illuminate (Both
 SIONER" ................................................................. 5
                                                                         .         Sides) .................................................................... 27
                                                                                                                                                            .        G
 Precautions for Battery Service ............................... 5       .         Headlamp Low Beam Does Not Illuminate (One
 General Precautions for Service Operations ........... 5                .         Side) ...................................................................... 29
                                                                                                                                                            .
 Wiring Diagrams and Trouble Diagnosis ................. 6               .         Headlamps Does Not Turn OFF ............................ 30              .
                                                                                                                                                                      H
HEADLAMP (FOR USA) ........................................... 7         .         CAUTION: ............................................................. 32.
 Component Parts and Harness Connector Location 7                        .....     Xenon Headlamp Trouble Diagnosis ..................... 32                .
 System Description ................................................. 7  .         Aiming Adjustment ................................................. 33   .
   OUTLINE .............................................................. 7
                                                                         .           PREPARATION BEFORE ADJUSTING ............. 33                          .         I
   HEADLAMP OPERATION ................................... 8              .           LOW BEAM AND HIGH BEAM .......................... 33                   .
   COMBINATION SWITCH READING FUNCTION 9                                 .....       ADJUSTMENT USING AN ADJUSTMENT
   EXTERIOR LAMP BATTERY SAVER CONTROL 9                                 .....       SCREEN (LIGHT/DARK BORDERLINE) ........... 34                          .         J
   AUTO LIGHT OPERATION .................................. 9             .         Bulb Replacement ................................................. 34    .
   VEHICLE SECURITY SYSTEM ........................... 9                 .           HEADLAMP (UPPER) LOW BEAM .................... 34                      .
   XENON HEADLAMP ............................................ 9         .           HEADLAMP (LOWER) HIGH BEAM/FOG LAMP 34                                 ...
                                                                                                                                                                     LT
 CAN Communication System Description ............... 9                  .           PARKING LAMP (CLEARANCE LAMP) ............. 34                         .
 CAN Communication Unit ....................................... 9        .           FRONT TURN SIGNAL AND PARKING LAMP ... 35
 Schematic ............................................................. 10
                                                                         .         Removal and Installation ....................................... 35      .
 Wiring Diagram -- H/LAMP -- ...............................11           .           REMOVAL .......................................................... 35  .         L
 Terminals and Reference Values for BCM ............ 15                  .           INSTALLATION .................................................. 35     .
 Terminals and Reference Values for IPDM E/R .... 16                     .         Disassembly .......................................................... 36.
 How to Proceed With Trouble Diagnosis ............... 16                .         Assembly ............................................................... 36
                                                                                                                                                            .        M
 Preliminary Check ................................................. 17  .         Servicing to Replace Headlamps When Damaged 37                           ...
   CHECK POWER SUPPLY AND GROUND CIR-                                                REMOVAL AND INSTALLATION ....................... 37                    .
   CUIT ................................................................... 17
                                                                         .        HEADLAMP (FOR CANADA) - DAYTIME LIGHT
 CONSULT-II Functions (BCM) .............................. 18            .        SYSTEM - ................................................................. 38
                                                                                                                                                            .
   CONSULT-II BASIC OPERATION ...................... 18                  .         Component Parts and Harness Connector Location 38                        ...
   WORK SUPPORT .............................................. 19        .         System Description ................................................ 38   .
   DATA MONITOR ................................................ 19      .           HEADLAMP OPERATION .................................. 39               .
   ACTIVE TEST .................................................... 20   .           COMBINATION SWITCH READING FUNCTION 40                                 ...
 CONSULT-II Functions (IPDM E/R) ...................... 21               .           EXTERIOR LAMP BATTERY SAVER CONTROL 40                                 ...
   CONSULT-II OPERATION ................................. 21             .           AUTO LIGHT OPERATION ................................ 40               .
   SELF-DIAGNOSTIC RESULTS ......................... 22                  .           DAYTIME LIGHT OPERATION .......................... 41                  .
   DATA MONITOR ................................................ 22      .           OPERATION ....................................................... 41   .
   ACTIVE TEST .................................................... 23   .           XENON HEADLAMP .......................................... 41           .
 Headlamp High Beam Does Not Illuminate (Both                                      CAN Communication System Description ............. 42                    .
 Sides) .................................................................... 23
                                                                         .         CAN Communication Unit ...................................... 42         .
 Headlamp High Beam Does Not Illuminate (One                                       Schematic .............................................................. 43
                                                                                                                                                            .


                                                                             LT-1
 Wiring Diagram -- DTRL -- .................................. 44         .           ACTIVE TEST .....................................................83   .
 Terminals and Reference Values for Daytime Light                                  CONSULT-II Functions (IPDM E/R) .......................83               .
 Control Unit ............................................................ 50
                                                                         .           CONSULT-II OPERATION ..................................83             .
 Terminals and Reference Values for BCM ............. 51                 .           SELF-DIAGNOSTIC RESULTS ..........................84                  .
 Terminals and Reference Values for IPDM E/R ..... 52                    .           DATA MONITOR .................................................84      .
 How to Proceed With Trouble Diagnosis ............... 52                .           ACTIVE TEST .....................................................85   .
 Preliminary Check ................................................. 53  .         Trouble Diagnosis Chart by Symptom ...................85                .
   CHECK POWER SUPPLY AND GROUND CIR-                                              Lighting Switch Inspection .....................................86      .
   CUIT ................................................................... 53
                                                                         .         Optical Sensor System Inspection .........................86            .
 CONSULT-II Functions (BCM) ............................... 54           .         Removal and Installation of Optical Sensor ...........87                .
   CONSULT-II BASIC OPERATION ...................... 54                  .           REMOVAL ...........................................................87 .
   WORK SUPPORT .............................................. 55        .           INSTALLATION ...................................................88    .
   DATA MONITOR ................................................. 55     .        FRONT FOG LAMP ..................................................89      .
   ACTIVE TEST .................................................... 56   .         Component Parts and Harness Connector Location                          ...89
 CONSULT-II Functions (IPDM E/R) ....................... 57              .         System Description ................................................89   .
   CONSULT-II OPERATION .................................. 57            .           OUTLINE ............................................................89.
   SELF-DIAGNOSTIC RESULTS .......................... 58                 .           COMBINATION SWITCH READING FUNCTION                                   ...91
   DATA MONITOR ................................................. 58     .           EXTERIOR LAMP BATTERY SAVER CONTROL                                   ...91
   ACTIVE TEST .................................................... 58   .         CAN Communication System Description .............91                    .
 Daytime Light Control Does Not Operate Properly 59                      ...       CAN Communication Unit ......................................91         .
 Headlamp High Beam Does Not Illuminate (Both                                      Wiring Diagram -- F/FOG -- .................................92          .
 Sides) .................................................................... 61
                                                                         .           FOR USA ............................................................92.
 RH High Beam Does Not Illuminate But RH Low                                         FOR CANADA ....................................................94     .
 Beam Illuminates ................................................... 63 .         Terminals and Reference Values for BCM .............96                  .
 LH High Beam Does Not Illuminate But LH Low                                       Terminals and Reference Values for IPDM E/R .....97                     .
 Beam Illuminates ................................................... 65 .         How to Proceed With Trouble Diagnosis ...............97                 .
 Headlamp Low Beam Does Not Illuminate (Both                                       Preliminary Check ..................................................98  .
 Sides) .................................................................... 67
                                                                         .           CHECK POWER SUPPLY AND GROUND CIR-
 RH Low Beam Does Not Illuminate But RH High                                         CUIT ....................................................................98
                                                                                                                                                           .
 Beam Illuminates ................................................... 69 .         CONSULT-II Functions ..........................................99       .
 LH Low Beam Does Not Illuminate But LH High                                       Front Fog lamps Does Not Illuminate (Both Sides)
 Beam Illuminates ................................................... 70 .         (FOR USA) .............................................................99
                                                                                                                                                           .
 Aiming Adjustment ................................................. 70  .         Front Fog Lamp Does Not Illuminate (One Side)
 Bulb Replacement ................................................. 70   .         (FOR USA) ........................................................... 101
                                                                                                                                                           .
 Removal and Installation ....................................... 70     .         Front Fog lamps Does Not Illuminate (Both Sides)
 Disassembly and Assembly ................................... 70         .         (For CANADA) ..................................................... 102  .
AUTO LIGHT SYSTEM ............................................ 71        .         LH Front Fog Lamp Does Not Illuminate (FOR CAN-
 Component Parts and Harness Connector Location 71                       ...       ADA) .................................................................... 103
                                                                                                                                                           .
 System Description ................................................ 71  .         RH Front Fog Lamp Does Not Illuminate (FOR CAN-
   OUTLINE ............................................................ 71
                                                                         .         ADA) .................................................................... 105
                                                                                                                                                           .
   COMBINATION SWITCH READING FUNCTION 72                                ...       Bulb Replacement ................................................ 106   .
   EXTERIOR LAMP BATTERY SAVER CONTROL 72                                ...      TURN SIGNAL AND HAZARD WARNING LAMPS.107
   DELAY TIMER FUNCTION ................................ 72              .         Component Parts and Harness Connector Location                          .107
 CAN Communication System Description ............. 72                   .         System Description .............................................. 107   .
 CAN Communication Unit ...................................... 72        .           TURN SIGNAL OPERATION ............................ 107                .
 Major Components and Functions ......................... 72             .           HAZARD LAMP OPERATION .......................... 108                  .
 Schematic .............................................................. 73
                                                                         .           REMOTE KEYLESS ENTRY SYSTEM OPERA-
 Wiring Diagram -- AUTO/L -- ............................... 74          .           TION ................................................................. 108
                                                                                                                                                           .
 Terminals and Reference Values for BCM ............. 77                 .           COMBINATION SWITCH READING FUNCTION                                   .109
 Terminals and Reference Values for IPDM E/R ..... 78                    .         CAN Communication System Description ........... 109                    .
 How to Proceed With Trouble Diagnosis ............... 79                .         CAN Communication Unit .................................... 109         .
 Preliminary Check ................................................. 79  .         Schematic ............................................................ 110
                                                                                                                                                           .
   SETTING CHANGE FUNCTIONS ...................... 79                    .         Wiring Diagram -- TURN -- ................................ 111          .
   CHECK POWER SUPPLY AND GROUND CIR-                                              Terminals and Reference Value for BCM ............. 114                 .
   CUIT ................................................................... 79
                                                                         .         How to Proceed With Trouble Diagnosis ............. 115                 .
 CONSULT-II Functions (BCM) ............................... 80           .         Preliminary Check ................................................ 116  .
   CONSULT-II BASIC OPERATION ...................... 80                  .           CHECK POWER SUPPLY AND GROUND CIR-
   WORK SUPPORT .............................................. 81        .           CUIT .................................................................. 116
                                                                                                                                                           .
   DATA MONITOR ................................................. 82     .         CONSULT-II Functions ........................................ 117       .

                                                                             LT-2
    CONSULT-II BASIC OPERATION .....................117                  .         Schematic ............................................................ 140
                                                                                                                                                           .
    DATA MONITOR ...............................................118      .         Wiring Diagram -- TAIL/L -- ............................... 141         .        A
    ACTIVE TEST ...................................................118   .         Terminals and Reference Value for BCM ............ 145                  .
  Turn Signal Lamp Does Not Operate ...................119               .         Terminals and Reference Values for IPDM E/R ... 146                     .
  Hazard Warning Lamp Does Not Operate But Turn                                    How to Proceed With Trouble Diagnosis ............. 146                 .        B
  Signal Lamp Operates ........................................ 120      .         Preliminary Check ............................................... 147   .
  Turn Signal Indicator Lamp Does Not Operate ... 121                    .           CHECK POWER SUPPLY AND GROUND CIR-
  Bulb Replacement (Front Turn Signal Lamp) ...... 121                   .           CUIT ................................................................. 147
                                                                                                                                                           .
  Bulb Replacement (Rear Turn Signal Lamp) ...... 121                    .         CONSULT-II Functions ........................................ 148       .        C
  Removal and Installation of Front Turn Signal Lamp 122                 .         Parking, License Plate and Tail Lamps Do Not Illu-
  Removal and Installation of Rear Turn Signal Lamp 122                  .         minate .................................................................. 148
                                                                                                                                                           .
LIGHTING AND TURN SIGNAL SWITCH ............. 123                        .         Parking, License Plate and Tail Lamps Do Not Turn                                D
  Removal and Installation ..................................... 123     .         OFF (After Approx. 10 Minutes) .......................... 154           .
    REMOVAL ........................................................ 123 .         Bulb Replacement ............................................... 154    .
    INSTALLATION ................................................ 123    .           FRONT SIDE MARKER LAMP ........................ 154                   .        E
HAZARD SWITCH ................................................. 124      .           LICENSE PLATE LAMP ................................... 154            .
  Removal and Installation (M/T) ........................... 124         .           FRONT TURN SIGNAL (PARKING) LAMP ...... 154                           .
    REMOVAL ........................................................ 124 .           TAIL LAMP ....................................................... 154 .
    INSTALLATION ................................................ 124    .         Removal and Installation ..................................... 154      .        F
  Removal and Installation (A/T) ............................ 124        .           FRONT SIDE MARKER LAMP ........................ 154                   .
    REMOVAL ........................................................ 124 .           LICENSE PLATE LAMP ................................... 155            .
    INSTALLATION ................................................ 124    .           FRONT TURN SIGNAL (PARKING) LAMP ...... 155                           .       G
COMBINATION SWITCH ....................................... 125           .           TAIL LAMP ....................................................... 155 .
  Wiring Diagram -- COMBSW -- ......................... 125              .       REAR COMBINATION LAMP ................................ 156                .
  Combination Switch Reading Function ............... 126                .         Bulb Replacement ............................................... 156    .        H
  CONSULT-II Function ......................................... 126      .           REAR FENDER SIDE (REAR TURN SIGNAL
    CONSULT-II BASIC OPERATION .................... 126                  .           LAMP BULB) .................................................... 156   .
    DATA MONITOR .............................................. 127      .         Removal and Installation ..................................... 156      .
                                                                                                                                                                    I
  Combination Switch Inspection ........................... 128          .           REMOVAL ........................................................ 156  .
  Removal and Installation ..................................... 130     .           INSTALLATION ................................................ 156     .
STOP LAMP .......................................................... 131 .       VANITY MIRROR LAMP ........................................ 157           .
  Wiring Diagram -- STOP/L -- ............................. 131          .         Bulb Replacement ............................................... 157    .        J
  Bulb Replacement of High-mounted Stop Lamp . 133                               MAP LAMP ............................................................ 158 .
    WITH REAR SPOILER .................................... 133           .         Bulb Replacement of Map Lamp ......................... 158              .
    WITHOUT REAR SPOILER ............................. 133               .         Removal and Installation of Map Lamp ............... 158                .       LT
  Bulb Replacement of Rear Combination Lamp (Stop                                    REMOVAL ........................................................ 158  .
  Lamp) .................................................................. 133
                                                                         .           INSTALLATION ................................................ 158     .
  Removal and Installation of High-mounted Stop                                  TRUNK ROOM LAMP ............................................ 159          .        L
  Lamp ................................................................... 133
                                                                         .         Bulb Replacement, Removal and Installation of
    REMOVAL (WITH REAR SPOILER) ................ 133                     .         Trunk Room Lamp ............................................... 159     .
    INSTALLATION ................................................ 133    .       IGNITION KEY HOLE ILLUMINATION .................. 160                     .
    REMOVAL (WITHOUT REAR SPOILER) ........ 133                          .         Removal and Installation ..................................... 160      .       M
    INSTALLATION ................................................ 133    .           REMOVAL ........................................................ 160  .
  Removal and Installation of Rear Combination                                       INSTALLTION ................................................... 160   .
  Lamp (Stop Lamp) ............................................... 133   .       GLOVE BOX LAMP ............................................... 161        .
BACK-UP LAMP ................................................... 134     .         Removal and Installation ..................................... 161      .
  Wiring Diagram -- BACK/L -- ............................ 134           .           REMOVAL ........................................................ 161  .
    A/T MODELS ................................................... 134   .           INSTALLATION ................................................ 161     .
    M/T MODELS ................................................... 135   .       ASHTRAY ILLUMINATION .................................... 162             .
  Bulb Replacement ............................................... 136   .         Bulb Replacement, Removal and Installation (M/T) 162                    .
  Removal and Installation ..................................... 136     .         Bulb Replacement, Removal and Installation (A/T) 162                    .
PARKING, LICENSE PLATE AND TAIL LAMPS .. 137                             .       CIGARETTE LIGHTER ILLUMINATION ................ 163                       .
  Component Parts and Harness Connector Location 137                     .         Removal and Installation ..................................... 163      .
  System Description ............................................. 137   .       INTERIOR ROOM LAMP ....................................... 164            .
    OPERATION BY LIGHTING SWITCH ............. 138                       .         Component Parts and Harness Connector Location 164                      .
    COMBINATION SWITCH READING FUNCTION 138                              .         System Description .............................................. 164   .
    EXTERIOR LAMP BATTERY SAVER CONTROL 139                              .           POWER SUPPLY AND GROUND ................... 164                       .
  CAN Communication System Description ........... 139                   .           SWITCH OPERATION ..................................... 165            .
  CAN Communication Unit ................................... 139         .           ROOM LAMP TIMER OPERATION ................. 165                       .

                                                                            LT-3
  INTERIOR LAMP BATTERY SAVER CONTROL 166                              .         All Interior Room Lamps Do Not Operate ............ 181              .
Schematic ............................................................ 167
                                                                       .         Removal and Installation ...................................... 182  .
Wiring Diagram -- ROOM/L -- ............................ 168           .           MAP LAMP ....................................................... 182
                                                                                                                                                      .
Terminals and Reference Values for BCM ........... 173                 .           STEP LAMP ...................................................... 182
                                                                                                                                                      .
How to Proceed With Trouble Diagnosis ............. 174                .       ILLUMINATION ....................................................... 183
                                                                                                                                                      .
Preliminary Check ............................................... 174  .         System Description .............................................. 183.
  CHECK FOR POWER SUPPLY AND GROUND                                                ILLUMINATION OPERATION BY LIGHTING
  CIRCUIT ........................................................... 174
                                                                       .           SWITCH ............................................................ 183
                                                                                                                                                      .
CONSULT-II Functions ........................................ 175      .           EXTERIOR LAMP BATTERY SAVER CONTROL                                .184
  CONSULT-II BASIC OPERATION .................... 175                  .         CAN Communication System Description ........... 184                 .
  WORK SUPPORT ............................................ 176        .         CAN Communication Unit .................................... 184      .
  DATA MONITOR ............................................... 176     .         Schematic ............................................................ 185
                                                                                                                                                      .
  ACTIVE TEST .................................................. 177   .         Wiring Diagram -- ILL -- ..................................... 186   .
Map Lamp Control Does Not Operate ................. 177                .         Removal and Installation ...................................... 194  .
Ignition key Hole illumination Control Does Not                                    GLOVE BOX LAMP .......................................... 194      .
Operate ................................................................ 179
                                                                       .       BULB SPECIFICATIONS ....................................... 195        .
All Step Lamps Do Not Operate ........................... 180          .         Headlamp ............................................................. 195
                                                                                                                                                      .
                                                                                 Exterior Lamp ....................................................... 195
                                                                                                                                                      .
                                                                                 Interior Lamp/Illumination ..................................... 195 .




                                                                          LT-4
                                              PRECAUTIONS

PRECAUTIONS                                                         PFP:00011
                                                                                                                          A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"                                                                                           AKS00AIG


The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along                             B
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front               C
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:                                                                                                                  D
q    To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
     in the event of a collision which would result in air bag inflation, all maintenance must be per-
     formed by an authorized NISSAN/INFINITI dealer.                                                                      E
q    Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
     sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
     Bag Module, see the SRS section.                                                                                     F
q    Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
     Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
     harness connectors.
                                                                                                                          G
Precautions for Battery Service                                                                              AKS00AUQ


Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the                 H
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
                                                                                                                          I
General Precautions for Service Operations                                                                     AKS00AII


q   Never work with wet hands.
q   Xenon headlamp includes high voltage generating part. Be sure                                                   J
    to disconnect battery negative cable (negative terminal) or
    power fuse before removing, installing, or touching the xenon
    headlamp (including lamp bulb).
                                                                                                                   LT
q   Turn the lighting switch OFF before disconnecting and connect-
    ing the connector.
q   When turning the xenon headlamp on and while it is illuminated,
                                                                                                                    L
    never touch the harness, bulb, and socket of the headlamp.
q   When checking the headlamp on/off operation, check it on vehi-                                       PKIA0183E
    cle and with the power connected to the vehicle-side connector.
                                                                                                                    M
q   Do not touch the headlamp bulb glass surface with bare hands or allow oil or grease to get on it. Do not
    touch the headlamp bulb just after the headlamp is turned off, because it is very hot.
q   Install the xenon headlamp bulb socket correctly. If it is installed
    improperly, high-voltage leak or corona discharge may occur
    that can melt the bulb, connector, and housing. Do not illuminate
    the xenon headlamp bulb out of the headlamp housing. Doing
    so can cause fire and harm your eyes.
q   When the bulb has burned out, wrap it in a thick vinyl bag and
    discard. Do not break the bulb.
q   Leaving the bulb removed from the headlamp housing for a long
    period of time can deteriorate the performance of the lens and
    reflector (dirt, clouding). Always prepare a new bulb and have it
    on hand when replacing the bulb.                                                                     EL-3422D


q   When adjusting the headlamp aiming, turn the aiming adjust-
    ment screw only in the tightening direction. (If it is necessary to loosen the screw, first fully loosen the
    screw, and then turn it in the tightening direction.)
q   Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.

                                                      LT-5
                                          PRECAUTIONS

Wiring Diagrams and Trouble Diagnosis                                                               AKS00AIJ


When you read wiring diagrams, refer to the following:
q  Refer to GI-15, "How to Read Wiring Diagrams" in GI section.
q  Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution in PG section.
When you perform trouble diagnosis, refer to the following:
q  Refer to GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section.
q  Refer to GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section.




                                                 LT-6
                                      HEADLAMP (FOR USA)

HEADLAMP (FOR USA)                                                                                   PFP:26010
                                                                                                                       A
Component Parts and Harness Connector Location                                                             AKS00AC6




                                                                                                                       B



                                                                                                                       C


                                                                                                                       D


                                                                                                                       E



                                                                                                                       F


                                                                                                                      G


                                                                                                                       H



                                                                                                                       I


                                                                                                                       J


                                                                                                    PKIA7618E
                                                                                                                      LT
System Description                                                                                         AKS00AC7


Control of the headlamp system operation is dependent upon the position of the combination switch (lighting
switch). When the lighting switch is placed in the 2ND position, BCM (body control module) receives input sig-         L
nal requesting the headlamps (and tail lamps) illuminate. This input signal is communicated to IPDM E/R
(intelligent power distribution module engine room) across CAN communication lines. CPU (central process-
ing unit) of IPDM E/R controls the headlamp high and headlamp low relay coils. These relays, when ener-
                                                                                                                      M
gized, direct power to the respective headlamps, which then illuminate.
If voltage is applied to a high beam solenoid, the bulb shade will move, even a xenon head lamp bulb comes
out, and a high beam and a low beam are changed.
OUTLINE
Power is supplied at all times
q  to headlamp high relay, [located in IPDM E/R (intelligent power distribution module engine room)],
q  to headlamp low relay, [located in IPDM E/R (intelligent power distribution module engine room)], and
q  to ignition relay, [located in IPDM E/R (intelligent power distribution module engine room)]
q  through 10A fuse [No. 71, located in IPDM E/R (intelligent power distribution module engine room)]
q  to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine room)]
q  through 15A fuse [No. 78, located in IPDM E/R (intelligent power distribution module engine room)]
q  to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine room)]
q  through 50A fusible link (letter F, located in fuse and fusible link block)
q  to BCM (body control module) terminal 55
q  through 10A fuse [No. 18, located in fuse block (J/B)]
                                                   LT-7
                                       HEADLAMP (FOR USA)

q   to BCM (body control module) terminal 42
q   through 10A fuse [No. 19, located in fuse block (J/B)]
q   to combination meter terminal 43.
With the ignition switch in ON or START position, power is supplied
q   to ignition relay, [located in IPDM E/R (intelligent power distribution module engine room)]
q   through 10A fuse [No. 1, located in fuse block (J/B)]
q   to BCM (body control module) terminal 38
q   through 10A fuse [No. 14, located in fuse block (J/B)]
q   to combination meter terminals 41 and 42.
With the ignition switch in ACC or ON position, power is supplied
q   through 10A fuse [No. 6, located in fuse block (J/B)]
q   to BCM (body control module) terminal 11.
Ground is supplied
q   to BCM (body control module) terminal 52
q   through grounds M30 and M66
q   to IPDM E/R (intelligent power distribution module engine room) terminals 38 and 60
q   through grounds E17 and E43
q   to combination meter terminals 45 and 46
q   through grounds M30 and M66.
HEADLAMP OPERATION
Low Beam Operation
With the lighting switch in 2ND position, BCM receives input signal requesting the headlamps to illuminate.
This input signal is communicated to IPDM E/R across CAN communication lines. CPU in IPDM E/R controls
the headlamp low relay coil, which when energized, directs power
q   to 15A fuse [No. 76, located in IPDM E/R]
q   through IPDM E/R terminal 20
q   to headlamp RH terminal 3, and
q   to 15A fuse [No. 86, located in IPDM E/R]
q   through IPDM E/R terminal 30
q   to headlamp LH terminal 3.
Ground is supplied
q   to headlamp RH terminal 4
q   through grounds E17 and E43
q   to headlamp LH terminal 4
q   through grounds E17 and E43.
With power and ground supplied, low beam headlamps illuminate.
High Beam Operation/Flash-to-Pass Operation
With the lighting switch in 2ND position and placed in HIGH or PASS position, BCM receives input signal
requesting the headlamp high beams to illuminate. This input signal is communicated to IPDM E/R across
CAN communication lines. CPU in IPDM E/R controls the headlamp high relay coil and low relay coil, which
when energized, directs power
q   to 15A fuse [No. 76, located in IPDM E/R]
q   through IPDM E/R terminal 20
q   to headlamp RH terminal 3, and
q   to 15A fuse [No. 86, located in IPDM E/R]
q   through IPDM E/R terminal 30
q   to headlamp LH terminal 3
q   to 10A fuse [No. 72, located in IPDM E/R]
q   through IPDM E/R terminal 27

                                                     LT-8
                                       HEADLAMP (FOR USA)

q    to headlamp RH terminal 2, and
q    to 10A fuse [No. 74, located in IPDM E/R]                                                                       A
q    through IPDM E/R terminal 28
q    to headlamp LH terminal 2.
                                                                                                                     B
Ground is supplied
q    to headlamp RH terminals 4 and 8
q    through grounds E17 and E43                                                                                     C
q    to headlamp LH terminals 4 and 8
q    through grounds E17 and E43.
With power and ground supplied, the high beam headlamps illuminate.                                                  D
If voltage is applied to a high beam solenoid, the bulb shade will move, even a xenon head lamp bulb comes
out, and a high beam and a low beam are changed.
Unified meter and A/C amp that received the high beam request signal by BCM across the CAN communica-
                                                                                                                     E
tion makes a high beam indicator lamp turn on in combination meter.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .                                                              F
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), and the ignition switch is turned
from ON or ACC to OFF, the battery saver control function is activated.                                              G
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
AUTO LIGHT OPERATION                                                                                                 H
Refer to LT-71, "System Description" in "AUTO LIGHT SYSTEM".
VEHICLE SECURITY SYSTEM                                                                                              I
The vehicle security system will flash the high beams if the system is triggered. Refer to BL-93, "VEHICLE
SECURITY (THEFT WARNING) SYSTEM" .
XENON HEADLAMP                                                                                                       J
Xenon type headlamp is adopted to the low beam headlamps. Xenon bulbs do not use a filament. Instead,
they produce light when a high voltage current is passed between two tungsten electrodes through a mixture
of xenon (an inert gas) and certain other metal halides. In addition to added lighting power, electronic control LT
of the power supply gives the headlamps stable quality and tone color.
Following are some of the many advantages of the xenon type headlamp.
q    The light produced by the headlamps is a white color comparable to sunlight that is easy on the eyes.         L
q    Light output is nearly double that of halogen headlamps, affording increased area of illumination.
q    The light features a high relative spectral distribution at wavelengths to which the human eye is most sen-
     sitive. This means that even in the rain, more light is reflected back from the road surface toward the vehi- M
     cle, for added visibility.
q    Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.
CAN Communication System Description                                                                      AKS00AC8


CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Unit                                                                                    AKS00AC9


Refer to LAN-4, "CAN Communication Unit" .




                                                    LT-9
            HEADLAMP (FOR USA)

Schematic                              AKS00ACA




                                 TKWM0847E




                  LT-10
                         HEADLAMP (FOR USA)

Wiring Diagram -- H/LAMP --                         AKS00ACB

                                                                A


                                                                B



                                                                C


                                                                D


                                                                E



                                                                F


                                                               G


                                                                H



                                                                I


                                                                J


                                                               LT


                                                                L



                                                               M




                                              TKWM0848E




                               LT-11
HEADLAMP (FOR USA)




                     TKWM0849E




      LT-12
HEADLAMP (FOR USA)


                                  A


                                  B



                                  C


                                  D


                                  E



                                  F


                                 G


                                  H



                                  I


                                  J


                                 LT


                                  L



                                 M




                     TKWM0850E




      LT-13
HEADLAMP (FOR USA)




                     TKWM0851E




      LT-14
                                            HEADLAMP (FOR USA)

Terminals and Reference Values for BCM                                                                          AKS00ACC

                                                                                                                            A
                                                             Measuring condition
 Terminal   Wire
                             Signal name          Ignition                                Reference value
   No.      color                                                Operation or condition
                                                   switch                                                                   B



                                                                                                                            C
                                                             Lighting, turn, wiper OFF
    2       G/R     Combination switch input 5      ON
                                                             Wiper dial position 4

                                                                                                                            D
                                                                                                            SKIA5291E




                                                                                                                            E
                                                             Lighting, turn, wiper OFF
    3        G      Combination switch input 4      ON
                                                             Wiper dial position 4
                                                                                                                            F
                                                                                                            SKIA5292E



                                                                                                                           G

                                                             Lighting, turn, wiper OFF
    4       W/L     Combination switch input 3      ON
                                                             Wiper dial position 4
                                                                                                                            H

                                                                                                            SKIA5291E


    5       W/G     Combination switch input 2                                                                              I


                                                             Lighting, turn, wiper OFF
                                                    ON                                                                      J
    6       W/R     Combination switch input 1               Wiper dial position 4


                                                                                                            SKIA5292E
                                                                                                                           LT
   11       LG      Ignition switch (ACC)          ACC                     --             Battery voltage


                                                                                                                            L
                                                             Lighting, turn, wiper OFF
   32       GY      Combination switch output 5     ON
                                                             Wiper dial position 4
                                                                                                                           M
                                                                                                            SKIA5291E




                                                             Lighting, turn, wiper OFF
   33        L      Combination switch output 4     ON
                                                             Wiper dial position 4


                                                                                                            SKIA5292E




                                                             Lighting, turn, wiper OFF
   34       PU      Combination switch output 3     ON
                                                             Wiper dial position 4


                                                                                                            SKIA5291E




                                                       LT-15
                                                  HEADLAMP (FOR USA)

                                                                          Measuring condition
 Terminal       Wire
                                    Signal name               Ignition                                  Reference value
   No.          color                                                          Operation or condition
                                                               switch
       35       Y/R      Combination switch output 2


                                                                           Lighting, turn, wiper OFF
                                                                ON
       36        Y       Combination switch output 1                       Wiper dial position 4


                                                                                                                          SKIA5292E


       38       W/L      Ignition switch (ON)                   ON                         --           Battery voltage
       39        L       CAN- H                                   --                       --                 --
       40        R       CAN- L                                   --                       --                 --
       42       GY       Battery power supply                  OFF                         --           Battery voltage
       52        B       Ground                                 ON                         --             Approx. 0V
       55       W/R      Battery power supply                  OFF                         --           Battery voltage

Terminals and Reference Values for IPDM E/R                                                                                   AKS00ACD


                                                                         Measuring condition
     Terminal    Wire
                                  Signal name          Ignition                                         Reference value
       No.       color                                                      Operation or condition
                                                        switch

                                                                   Lighting switch 2ND           OFF      Approx. 0V
       20            R     Headlamp low (RH)             ON
                                                                   position                       ON    Battery voltage

                                                                   Lighting switch HIGH          OFF      Approx. 0V
       27         BR       Headlamp high (RH)            ON
                                                                   or PASS position               ON    Battery voltage

                                                                   Lighting switch HIGH          OFF      Approx. 0V
       28         R/Y      Headlamp high (LH)            ON
                                                                   or PASS position               ON    Battery voltage

                                                                   Lighting switch 2ND           OFF      Approx. 0V
       30         R/B      Headlamp low (LH)             ON
                                                                   position                       ON    Battery voltage
       38            B     Ground                        ON                           --                  Approx. 0V
       48            L     CAN- H                        --                           --                      --
       49            R     CAN- L                        --                           --                      --
       60            B     Ground                        ON                           --                  Approx. 0V

How to Proceed With Trouble Diagnosis                                                                                         AKS00ACE


1.     Confirm the symptom or customer complaint.
2.     Understand operation description and function description. Refer to LT-7, "System Description" .
3.     Perform the preliminary check. Refer to LT-17, "Preliminary Check" .
4.     Check symptom and repair or replace the cause of malfunction.
5.     Does the headlamp operate normally? If YES: GO TO 6. If NO: GO TO 4.
6.     INSPECTION END




                                                                       LT-16
                                             HEADLAMP (FOR USA)

Preliminary Check                                                                                                       AKS00ACF

CHECK POWER SUPPLY AND GROUND CIRCUIT                                                                                               A

1. CHECK FUSES
Check fuses for blown-out.                                                                                                          B
                      Unit                                   Power source                Fuse and fusible link No.
                                                                  Battery                           F
                                                                                                                                    C
                                                                  Battery                           18
                      BCM
                                                  Ignition switch ON or START position              1
                                                   Ignition switch ACC or ON position               6                               D
                                                                                                    72
                                                                                                    74
                   IPDM E/R                                       Battery                                                           E
                                                                                                    76
                                                                                                    86
Refer to LT-11, "Wiring Diagram -- H/LAMP --" .                                                                                     F
OK or NG
 OK    >> GO TO 2.
 NG    >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-                     G
          4, "POWER SUPPLY ROUTING CIRCUIT" .

2. CHECK POWER SUPPLY CIRCUIT                                                                                                       H
1.   Turn ignition switch OFF.
2.   Disconnect BCM connector.
                                                                                                                                    I
3.   Check voltage between BCM harness connector and ground.
                   Terminals                       Ignition switch position
             (+)                                                                                                                    J
                Terminal         (-)         OFF            ACC               ON
 Connector
               (Wire color)
                                                           Battery          Battery
                                                                                                                                   LT
                    11 (LG)                   0V
                                                           voltage  



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