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K ELECTRICAL

B
SECTION
LIGHTING SYSTEM C

E
CONTENTS
PRECAUTIONS ......................................................... 4
. FRONT SIDE MARKER LAMP .......................... 27 . F
Precautions for Supplemental Restraint System Removal and Installation ....................................... 27 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- FRONT COMBINATION LAMP .......................... 27 .
SIONER" ................................................................. 4
. Disassembly and Assembly ................................... 28 . G
General precautions for service operations ............ 4 . FRONT COMBINATION LAMP .......................... 28 .
HEADLAMP (FOR USA) ........................................... 5 . HEADLAMP (FOR CANADA) - DAYTIME LIGHT
Component Parts and Harness Connector Location 5 ..... SYSTEM - ................................................................. 29
.
H
System Description ................................................. 5
. Component Parts and Harness Connector Location 29 ...
OUTLINE .............................................................. 5
. System Description ................................................ 29 .
BATTERY SAVER CONTROL ............................. 6 . OUTLINE ............................................................ 30
.
AUTO LIGHT OPERATION .................................. 6 . DAYTIME LIGHT OPERATION .......................... 31 . I
VEHICLE SECURITY SYSTEM (PANIC ALARM) 6 ..... COMBINATION SWITCH READING FUNCTION 31 ...
CAN Communication System Description ............... 6 . AUTO LIGHT OPERATION ................................ 31 .
Schematic ............................................................... 7
. CAN Communication System Description ............. 31 . J
Wiring Diagram -- H/LAMP -- ................................ 8 . Schematic .............................................................. 32
.
Terminals and Reference Values for BCM ............ 12 . Wiring Diagram -- DTRL -- .................................. 33 .
Terminals and Reference Values for IPDM E/R .... 12 . Terminals and Reference Values for BCM ............. 37 . LT
How to Proceed With Trouble Diagnosis ............... 12 . Terminals and Reference Values for IPDM E/R ..... 37 .
Preliminary Check ................................................. 12
. How to Proceed With Trouble Diagnosis ............... 37 .
CONSULT-II Function (BCM) ................................ 12 . Preliminary Check ................................................. 37 .
CONSULT-II OPERATION ................................. 12 . CHECK BCM CONFIGURATION ....................... 37 . L
WORK SUPPORT .............................................. 13 . INSPECTION FOR POWER SUPPLY AND
DATA MONITOR ................................................ 13 . GROUND CIRCUIT ............................................ 37 .
ACTIVE TEST .................................................... 14
. INSPECTION PARKING BRAKE SWITCH CIR- M
SELF-DIAGNOSTIC RESULTS ......................... 15 . CUIT ................................................................... 37
.
CONSULT-II Function (IPDM E/R) ........................ 15 . CONSULT-II Functions .......................................... 38 .
CONSULT-II OPERATION ................................. 15 . Daytime Light Control Does Not Operate Properly
DATA MONITOR ................................................ 16 . (Normal Headlamps Operate Properly) ................. 38 .
ACTIVE TEST .................................................... 17
. Aiming Adjustment ................................................. 39 .
Headlamp HI Does Not Illuminate (Both Sides) .... 17 . Bulb Replacement ................................................. 39 .
Headlamp HI Does Not Illuminate (One Side) ...... 19 . Removal and Installation ....................................... 39 .
High Beam Indicator Lamp Does Not Illuminate ... 20 Disassembly and Assembly ................................... 39 .
Headlamp LO Does Not Illuminate (Both Sides) ... 21 AUTO LIGHT SYSTEM ............................................ 40 .
Headlamp LO Does Not Illuminate (One Side) ..... 23 . Component Parts and Harness Connector Location 40 ...
Headlamps Do Not Turn OFF ............................... 24 . System Description ................................................ 41 .
Aiming Adjustment ................................................ 25
. OUTLINE ............................................................ 41
.
LOW BEAM AND HIGH BEAM .......................... 26 . COMBINATION SWITCH READING FUNCTION 41 ...
Bulb Replacement ................................................. 27
. EXTERIOR LAMP BATTERY SAVER CONTROL 41 ...
HEADLAMP BULB ............................................. 27 . DELAY TIMER FUNCTION ................................ 41 .
FRONT TURN SIGNAL/PARKING LAMP .......... 27 . CAN Communication System Description ............. 41 .

Revision: September 2005 LT-1 2006 Pathfinder
Major Components and Functions ......................... 42 . Preliminary Check ..................................................69 .
Schematic .............................................................. 43
. CHECK POWER SUPPLY AND GROUND CIR-
Wiring Diagram -- AUTO/L -- ............................... 44 . CUIT ....................................................................69
.
Terminals and Reference Values for BCM ............. 47 . CONSULT-II Function (BCM) .................................69 .
Terminals and Reference Values for IPDM E/R ..... 47 . CONSULT-II OPERATION ..................................69 .
How to Proceed With Trouble Diagnosis ............... 47 . DATA MONITOR .................................................70 .
Preliminary Check ................................................. 47 . ACTIVE TEST .....................................................71 .
SETTING CHANGE FUNCTIONS ...................... 47 . Turn Signal Lamp Does Not Operate .....................71 .
CHECK BCM CONFIGURATION ....................... 47 . Rear Turn Signal Lamp Does Not Operate ............72 .
CHECK POWER SUPPLY AND GROUND CIR- Hazard Warning Lamp Does Not Operate But Turn
CUIT ................................................................... 47
. Signal Lamps Operate ...........................................73 .
CONSULT-II Function (BCM) ................................. 47 . Turn Signal Indicator Lamp Does Not Operate ......75 .
CONSULT-II OPERATION .................................. 47 . Bulb Replacement ..................................................76 .
WORK SUPPORT .............................................. 48 . FRONT TURN SIGNAL LAMP ............................76 .
DATA MONITOR ................................................. 49 . REAR TURN SIGNAL LAMP ..............................76 .
ACTIVE TEST .................................................... 50 . Removal and Installation ........................................76 .
CONSULT-II Function (IPDM E/R) ......................... 51 . FRONT TURN SIGNAL LAMP ............................76 .
CONSULT-II OPERATION .................................. 51 . REAR TURN SIGNAL LAMP ..............................76 .
DATA MONITOR ................................................. 52 . LIGHTING AND TURN SIGNAL SWITCH ...............77 .
ACTIVE TEST .................................................... 52 . Removal and Installation ........................................77 .
Trouble Diagnosis Chart by Symptom ................... 53 . REMOVAL ...........................................................77 .
Lighting Switch Inspection ..................................... 53 . INSTALLATION ...................................................77 .
Optical Sensor System Inspection ......................... 54 . HAZARD SWITCH ....................................................78 .
Removal and Installation ....................................... 55 . Removal and Installation ........................................78 .
OPTICAL SENSOR ............................................ 55 . REMOVAL ...........................................................78 .
FRONT FOG LAMP ................................................. 56 . INSTALLATION ...................................................78 .
Component Parts and Harness Connector Location 56 ... COMBINATION SWITCH .........................................79 .
System Description ................................................ 56 . Wiring Diagram -- COMBSW -- ...........................79 .
OUTLINE ............................................................ 56
. Combination Switch Reading Function ..................80 .
COMBINATION SWITCH READING FUNCTION 57 ... CONSULT-II Function (BCM) .................................80 .
EXTERIOR LAMP BATTERY SAVER CONTROL 57 ... CONSULT-II OPERATION ..................................80 .
CAN Communication System Description ............. 57 . DATA MONITOR .................................................81 .
Wiring Diagram -- F/FOG -- ................................. 58 . Combination Switch Inspection ..............................82 .
Terminals and Reference Values for BCM ............. 60 . Removal and Installation ........................................84 .
Terminals and Reference Values for IPDM E/R ..... 60 . Switch Circuit Inspection ........................................84 .
How to Proceed With Trouble Diagnosis ............... 60 . STOP LAMP .............................................................85 .
Preliminary Check ................................................. 60 . System Description ................................................85 .
CHECK POWER SUPPLY AND GROUND CIR- Wiring Diagram -- STOP/L -- ...............................86 .
CUIT ................................................................... 60
. High-Mounted Stop Lamp ......................................87 .
CONSULT-II Functions .......................................... 60 . BULB REPLACEMENT .......................................87 .
Front Fog Lamps Do Not Illuminate (Both Sides) ... 60 REMOVAL AND INSTALLATION ........................87 .
Front Fog Lamp Does Not Illuminate (One Side) ... 61 Stop Lamp ..............................................................87
.
Aiming Adjustment ................................................. 62 . BULB REPLACEMENT .......................................87 .
Bulb Replacement ................................................. 63 . REMOVAL AND INSTALLATION ........................87 .
Removal and Installation ....................................... 63 . BACK-UP LAMP ......................................................88 .
FRONT FOG LAMP ............................................ 63 . Wiring Diagram -- BACK/L -- ...............................88 .
TURN SIGNAL AND HAZARD WARNING LAMPS... 64 Bulb Replacement ..................................................89 .
Component Parts and Harness Connector Location 64 ... Removal and Installation ........................................89 .
System Description ................................................ 64 . PARKING, LICENSE PLATE AND TAIL LAMPS .....90 .
OUTLINE ............................................................ 64
. Component Parts and Harness Connector Location ...90
TURN SIGNAL OPERATION .............................. 64 . System Description ................................................90 .
HAZARD LAMP OPERATION ............................ 65 . OPERATION BY LIGHTING SWITCH ................90 .
REMOTE KEYLESS ENTRY SYSTEM OPERA- COMBINATION SWITCH READING FUNCTION ...91
TION ................................................................... 65
. EXTERIOR LAMP BATTERY SAVER CONTROL ...91
COMBINATION SWITCH READING FUNCTION 66 ... CAN Communication System Description .............91 .
CAN Communication System Description ............. 66 . Schematic ..............................................................92
.
Wiring Diagram -- TURN -- .................................. 67 . Wiring Diagram -- TAIL/L -- ..................................93 .
Terminals and Reference Values for BCM ............. 69 . Terminals and Reference Values for BCM .............97 .
How to Proceed With Trouble Diagnosis ............... 69 . Terminals and Reference Values for IPDM E/R .....97 .

Revision: September 2005 LT-2 2006 Pathfinder
How to Proceed With Trouble Diagnosis ............... 97 . ROOM LAMP TIMER OPERATION ................. 118 .
Preliminary Check ................................................. 97 . INTERIOR LAMP BATTERY SAVER CONTROL 118 . A
CHECK POWER SUPPLY AND GROUND CIR- Schematic ............................................................ 119
.
CUIT ................................................................... 97
. Wiring Diagram -- INT/L -- ................................. 121 .
CONSULT-II Functions .......................................... 97 . Terminals and Reference Values for BCM ........... 126 . B
Parking, Side Marker, License Plate and/or Tail How to Proceed With Trouble Diagnosis ............. 126 .
Lamps Do Not Illuminate ....................................... 97 . Preliminary Check ............................................... 126 .
Parking, Side Marker, License Plate and Tail Lamps INSPECTION FOR POWER SUPPLY AND
Do Not Turn OFF (After Approx. 10 Minutes) ...... 104 . GROUND CIRCUIT .......................................... 126 . C
Bulb Replacement ............................................... 104 . CONSULT-II Function (BCM) .............................. 126 .
FRONT PARKING LAMP ................................. 104 . CONSULT-II OPERATION ................................ 126 .
TAIL LAMP ....................................................... 104. WORK SUPPORT ............................................ 127 . D
LICENSE PLATE LAMP ................................... 104 . DATA MONITOR .............................................. 128 .
Removal and Installation ..................................... 104 . ACTIVE TEST .................................................. 128 .
LICENSE PLATE LAMP ................................... 104 . Room/Map Lamp Control Does Not Operate ...... 129 . E
REAR COMBINATION LAMP ............................... 105 . Personal Lamp Control Does Not Operate (Room/
Bulb Replacement ............................................... 105 . Map Lamps Operate) ........................................... 131 .
REMOVAL ........................................................ 105 . All Interior Room Lamps Do Not Operate ............ 132 .
INSTALLATION ................................................ 105 . Ignition Keyhole Illumination Control Does Not F
Removal and Installation ..................................... 105 . Operate ................................................................ 132
.
REMOVAL ........................................................ 105 . ILLUMINATION ...................................................... 135 .
INSTALLATION ................................................ 105 . Component Parts and Harness Connector Location 135 . G
TRAILER TOW ...................................................... 106 . System Description .............................................. 135 .
Component Parts and Harness Connector Location 106 . ILLUMINATION OPERATION BY LIGHTING
System Description ............................................. 106 . SWITCH ........................................................... 136
. H
TRAILER TAIL LAMP OPERATION ................. 107 . EXTERIOR LAMP BATTERY SAVER CONTROL 137 .
TRAILER STOP, TURN SIGNAL AND HAZARD CAN Communication System Description ........... 137 .
LAMP OPERATION ......................................... 107 . Schematic ............................................................ 138
.
I
TRAILER POWER SUPPLY OPERATION ....... 107 . Wiring Diagram -- ILL -- ..................................... 141 .
Schematic ........................................................... 109
. Removal and Installation ..................................... 150 .
Wiring Diagram -- T/TOW -- ...............................110 . ILLUMINATION CONTROL SWITCH ............... 150 .
INTERIOR ROOM LAMP ........................................115 . BULB SPECIFICATIONS ....................................... 151 . J
Component Parts and Harness Connector Location ..115 Headlamp ............................................................ 151
.
System Description ..............................................116 . Exterior Lamp ...................................................... 151
.
POWER SUPPLY AND GROUND ....................116 . Interior Lamp/Illumination .................................... 151 . LT
SWITCH OPERATION ......................................117 .

Revision: September 2005 LT-3 2006 Pathfinder
PRECAUTIONS

PRECAUTIONS PFP:00011

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS00FTW

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along
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
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:
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.
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.
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.
General precautions for service operations EKS00FTX

q Never work with wet hands.
q Turn the lighting switch OFF before disconnecting and connecting the connector.
q When checking the headlamp on/off operation, check it on vehicle and with the power connected to the
vehicle-side connector.
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 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 perfor-
mance of the lens and reflector (dirt, clouding). Always prepare a new bulb and have it on hand when
replacing the bulb.
q Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.

Revision: September 2005 LT-4 2006 Pathfinder
HEADLAMP (FOR USA)

HEADLAMP (FOR USA) PFP:26010
A
Component Parts and Harness Connector Location EKS00FTZ

F
WKIA4957E

1. IPDM E/R 2. BCM 3. Combination Switch (lighting switch)
E118, E119, E120, E121, M18, M19, M20 M28
G
E122, E123, E124 (view with instrument lower panel LH removed
4. Combination meter
M24 H

System Description EKS00FU0

Control of the front headlamp system operation is dependent upon the position of the combination switch I
(lighting switch). When the lighting switch is placed in the 2ND position, the BCM (body control module)
receives input requesting the headlamps (and tail lamps) illuminate. This input is communicated to the IPDM
E/R (intelligent power distribution module engine room) across the CAN communication lines. The CPU (cen-
tral processing unit) of the IPDM E/R controls the front headlamp high and front headlamp low relay coils. J
When energized, these relays direct power to the respective headlamps, which then illuminate.
OUTLINE LT
Power is supplied at all times
q to ignition relay, located in the IPDM E/R, and
q to headlamp high relay, located in the IPDM E/R, and L
q to headlamp low relay, located in the IPDM E/R, and
q through 20A fuse (No. 53, located in the IPDM E/R)
q to CPU of the IPDM E/R, and M
q through 50A fusible link (letter g , located in the fuse and fusible link box)
q to BCM terminal 70.
With the ignition switch in the ON or START position, power is supplied
q to ignition relay, located in the IPDM E/R, and
q through 10A fuse [No. 1, located in the fuse block (J/B)]
q to BCM terminal 38.
Ground is supplied
q to BCM terminal 67
q through grounds M57, M61 and M79, and
q to IPDM E/R terminals 38 and 59
q through grounds E9, E15 and E24.

Revision: September 2005 LT-5 2006 Pathfinder
HEADLAMP (FOR USA)

Low Beam Operation
With the lighting switch in 2ND position, the BCM receives input requesting the headlamps to illuminate. This
input is communicated to the IPDM E/R across the CAN communication lines. The CPU of the IPDM E/R con-
trols the headlamp low relay coil. When energized, this relay directs power
q through 15A fuse (No. 41, located in the IPDM E/R)
q through IPDM E/R terminal 54
q to front headlamp RH terminal 3, and
q through 15A fuse (No. 40, located in the IPDM E/R)
q through IPDM E/R terminal 52
q to front headlamp LH terminal 3.
Ground is supplied
q to front headlamp LH and RH terminal 2
q through grounds E9, E15 and E24.
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, the BCM receives input request-
ing the headlamp high beams to illuminate. This input is communicated to the IPDM E/R across the CAN com-
munication lines. The CPU of the combination meter controls the ON/OFF status of the HIGH BEAM indicator.
The CPU of the IPDM E/R controls the headlamp high relay coil. When energized, this relay directs power
q through 10A fuse (No. 34, located in the IPDM E/R)
q through IPDM E/R terminal 56
q to front headlamp RH terminal 1, and
q through 10A fuse (No. 35, located in the IPDM E/R)
q through IPDM E/R terminal 55
q to front headlamp LH terminal 1.
Ground is supplied
q to front headlamp LH and RH terminal 2
q through grounds E9, E15 and E24.
With power and ground supplied, the high beam headlamps illuminate.
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 feature is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, unless the combination switch (lighting
switch) position is changed. If the combination switch (lighting switch) position is changed, then the headlamps
are turned off.
AUTO LIGHT OPERATION
Refer to LT-41, "System Description" for auto light operation.
VEHICLE SECURITY SYSTEM (PANIC ALARM)
The vehicle security system (panic alarm) will flash the high beams if the system is triggered. Refer to BL-44,
"Panic Alarm Operation" .
CAN Communication System Description EKS00FU1

Refer to LAN-25, "CAN COMMUNICATION" .

Revision: September 2005 LT-6 2006 Pathfinder
HEADLAMP (FOR USA)

Schematic EKS00FU2

WKWA4303E

Revision: September 2005 LT-7 2006 Pathfinder
HEADLAMP (FOR USA)

Wiring Diagram -- H/LAMP -- EKS00FU3

WKWA4221E

Revision: September 2005 LT-8 2006 Pathfinder
HEADLAMP (FOR USA)

WKWA2018E

Revision: September 2005 LT-9 2006 Pathfinder
HEADLAMP (FOR USA)

WKWA2019E

Revision: September 2005 LT-10 2006 Pathfinder
HEADLAMP (FOR USA)

WKWA4222E

Revision: September 2005 LT-11 2006 Pathfinder
HEADLAMP (FOR USA)

Terminals and Reference Values for BCM EKS00FU4

Refer to BCS-12, "Terminals and Reference Values for BCM" .
Terminals and Reference Values for IPDM E/R EKS00FU5

Refer to PG-28, "Terminals and Reference Values for IPDM E/R"
How to Proceed With Trouble Diagnosis EKS00FU6

1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT-5, "System Description" .
3. Perform the Preliminary Check. Refer to LT-12, "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.
Preliminary Check EKS00FU7

Refer to BCS-16, "BCM Power Supply and Ground Circuit Check" and PG-30, "IPDM E/R Power/Ground Cir-
cuit Inspection" .
CONSULT-II Function (BCM) EKS00FU8

CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
BCM diagnostic
Diagnostic mode Description
test item
Supports inspections and adjustments. Commands are transmitted to the BCM
WORK SUPPORT for setting the status suitable for required operation, input/output signals are
received from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
Inspection by part
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.

CONSULT-II OPERATION
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CON-
SULT-II CONVERTER to the data link connector, then turn igni-
tion switch ON.

BBIA0538E

Revision: September 2005 LT-12 2006 Pathfinder
HEADLAMP (FOR USA)

2. Touch "START (NISSAN BASED VHCL)".
A

BCIA0029E

D
3. Touch "BCM" on "SELECT SYSTEM" screen.
If "BCM" is not indicated, go to GI-40, "CONSULT-II Data Link
Connector (DLC) Circuit" .
E

G
BCIA0030E

4. Touch "HEAD LAMP" on "SELECT TEST ITEM" screen.
H

LKIA0183E
LT

WORK SUPPORT
Operation Procedure L
1. Touch "HEAD LAMP" on "SELECT TEST ITEM" screen.
2. Touch "WORK SUPPORT" on "SELECT DIAG MODE" screen.
3. Touch item on "SELECT WORK ITEM" screen. M
4. Touch "START".
5. Touch "CHANGE SETT".
6. The setting will be changed and "CUSTOMIZING COMPLETED" will be displayed.
7. Touch "END".
Display Item List
Item Description CONSULT-II Factory setting
Exterior lamp battery saver control mode can be changed ON

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