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K ELECTRICAL

SECTION
LIGHTING SYSTEM
LT B

E
CONTENTS
PRECAUTIONS ......................................................... 4
. LOW BEAM AND HIGH BEAM .......................... 24 . F
Precautions for Supplemental Restraint System Bulb Replacement ................................................. 25 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- HEADLAMP BULB ............................................. 25 .
SIONER" ................................................................. 4
. FRONT TURN SIGNAL/PARKING LAMP .......... 25 . G
General precautions for service operations ............ 4 . FRONT SIDE MARKER LAMP .......................... 25 .
HEADLAMP (FOR USA) ........................................... 5 . Removal and Installation ....................................... 25 .
Component Parts and Harness Connector Location 5 ..... FRONT COMBINATION LAMP .......................... 25 .
H
System Description ................................................. 5
. Disassembly and Assembly ................................... 26 .
OUTLINE .............................................................. 5
. FRONT COMBINATION LAMP .......................... 26 .
BATTERY SAVER CONTROL ............................. 6 . HEADLAMP (FOR CANADA) - DAYTIME LIGHT
AUTO LIGHT OPERATION .................................. 6 . SYSTEM - ................................................................. 27
. I
VEHICLE SECURITY SYSTEM (PANIC ALARM) 6 ..... Component Parts and Harness Connector Location 27 ...
CAN Communication System Description ............... 6 . System Description ................................................ 27 .
Schematic ............................................................... 7
. OUTLINE ............................................................ 28
. J
Wiring Diagram -- H/LAMP -- ................................ 8 . DAYTIME LIGHT OPERATION .......................... 29 .
Terminals and Reference Values for BCM ............ 12 . COMBINATION SWITCH READING FUNCTION 29 ...
Terminals and Reference Values for IPDM E/R .... 12 . AUTO LIGHT OPERATION ................................ 29 .
LT
How to Proceed With Trouble Diagnosis ............... 12 . CAN Communication System Description ............. 29 .
Preliminary Check ................................................. 12
. Schematic .............................................................. 30
.
CHECK POWER SUPPLY AND GROUND CIR- Wiring Diagram -- DTRL -- .................................. 31 .
CUIT FOR BCM ................................................. 12 . Terminals and Reference Values for BCM ............. 35 . L
CHECK POWER SUPPLY AND GROUND CIR- Terminals and Reference Values for IPDM E/R ..... 35 .
CUIT FOR IPDM E/R ......................................... 12 . How to Proceed With Trouble Diagnosis ............... 35 .
CONSULT-II Function (BCM) ................................ 12 . Preliminary Check ................................................. 35 . M
CONSULT-II START PROCEDURE ................... 12 . CHECK BCM CONFIGURATION ....................... 35 .
WORK SUPPORT .............................................. 12 . CHECK POWER SUPPLY AND GROUND CIR-
DATA MONITOR ................................................ 12 . CUIT FOR BCM ................................................. 35 .
ACTIVE TEST .................................................... 13
. CHECK POWER SUPPLY AND GROUND CIR-
SELF-DIAGNOSTIC RESULTS ......................... 13 . CUIT FOR IPDM E/R ......................................... 35 .
CONSULT-II Function (IPDM E/R) ........................ 13 . INSPECTION PARKING BRAKE SWITCH CIR-
CONSULT-II START PROCEDURE ................... 14 . CUIT ................................................................... 35
.
DATA MONITOR ................................................ 14 . CONSULT-II Function (BCM) ................................ 36 .
ACTIVE TEST .................................................... 14
. CONSULT-II Function (IPDM E/R) ........................ 36 .
Headlamp HI Does Not Illuminate (Both Sides) .... 14 . Daytime Light Control Does Not Operate Properly
Headlamp HI Does Not Illuminate (One Side) ...... 17 . (Normal Headlamps Operate Properly) ................. 36 .
High Beam Indicator Lamp Does Not Illuminate ... 18 Aiming Adjustment ................................................. 37 .
Headlamp LO Does Not Illuminate (Both Sides) ... 18 Bulb Replacement ................................................. 37 .
Headlamp LO Does Not Illuminate (One Side) ..... 20 . Removal and Installation ....................................... 37 .
Headlamps Do Not Turn OFF ............................... 22 . Disassembly and Assembly ................................... 37 .
Aiming Adjustment ................................................ 23
. AUTO LIGHT SYSTEM ............................................ 38 .

Revision: September 2006 LT-1 2007 Pathfinder
Component Parts and Harness Connector Location 38 ... Component Parts and Harness Connector Location ...60
System Description ................................................ 39
. System Description ................................................60 .
OUTLINE ............................................................ 39
. OUTLINE ............................................................60
.
COMBINATION SWITCH READING FUNCTION 39 ... TURN SIGNAL OPERATION ..............................60 .
EXTERIOR LAMP BATTERY SAVER CONTROL 39 ... HAZARD LAMP OPERATION ............................61 .
DELAY TIMER FUNCTION ................................ 39 . REMOTE KEYLESS ENTRY SYSTEM OPERA-
CAN Communication System Description ............. 39 . TION ...................................................................61
.
Major Components and Functions ......................... 40 . COMBINATION SWITCH READING FUNCTION ...62
Schematic .............................................................. 41
. CAN Communication System Description .............62 .
Wiring Diagram -- AUTO/L -- ............................... 42 . Wiring Diagram -- TURN -- ..................................63 .
Terminals and Reference Values for BCM ............. 45 . Terminals and Reference Values for BCM .............65 .
Terminals and Reference Values for IPDM E/R ..... 45 . How to Proceed With Trouble Diagnosis ...............65 .
How to Proceed With Trouble Diagnosis ............... 45 . Preliminary Check ..................................................65 .
Preliminary Check ................................................. 45
. CHECK POWER SUPPLY AND GROUND CIR-
SETTING CHANGE FUNCTIONS ...................... 45 . CUIT FOR BCM ..................................................65 .
CHECK BCM CONFIGURATION ....................... 45 . CONSULT-II Function (BCM) .................................65 .
CHECK POWER SUPPLY AND GROUND CIR- CONSULT-II START PROCEDURE ....................65 .
CUIT FOR BCM .................................................. 45 . DATA MONITOR .................................................65 .
CHECK POWER SUPPLY AND GROUND CIR- ACTIVE TEST .....................................................65 .
CUIT FOR IPDM E/R .......................................... 45 . Turn Signal Lamps Do Not Operate .......................65 .
CONSULT-II Function (BCM) ................................. 45 . Front Turn Signal Lamps Do Not Operate .............66 .
CONSULT-II START PROCEDURE ................... 45 . Rear Turn Signal Lamp Does Not Operate ............66 .
WORK SUPPORT .............................................. 45 . Hazard Warning Lamp Does Not Operate But Turn
DATA MONITOR ................................................. 46 . Signal Lamps Operate ...........................................67 .
ACTIVE TEST .................................................... 46. Turn Signal Indicator Lamp Does Not Operate ......69 .
CONSULT-II Function (IPDM E/R) ......................... 46 . Bulb Replacement ..................................................70 .
CONSULT-II START PROCEDURE ................... 46 . FRONT TURN SIGNAL LAMP ............................70 .
DATA MONITOR ................................................. 47 . REAR TURN SIGNAL LAMP ..............................70 .
ACTIVE TEST .................................................... 47. Removal and Installation ........................................70 .
Trouble Diagnosis Chart by Symptom ................... 47 . FRONT TURN SIGNAL LAMP ............................70 .
Lighting Switch Inspection ..................................... 48 . REAR TURN SIGNAL LAMP ..............................70 .
Optical Sensor System Inspection ......................... 48 . LIGHTING AND TURN SIGNAL SWITCH ...............71 .
Removal and Installation ....................................... 50 . Removal and Installation ........................................71 .
OPTICAL SENSOR ............................................ 50 . REMOVAL ...........................................................71.
FRONT FOG LAMP ................................................. 51 . INSTALLATION ...................................................71 .
Component Parts and Harness Connector Location 51 ... HAZARD SWITCH ....................................................72 .
System Description ................................................ 51
. Removal and Installation ........................................72 .
OUTLINE ............................................................ 51
. REMOVAL ...........................................................72.
COMBINATION SWITCH READING FUNCTION 52 ... INSTALLATION ...................................................72 .
EXTERIOR LAMP BATTERY SAVER CONTROL 52 ... COMBINATION SWITCH .........................................73 .
CAN Communication System Description ............. 52 . Wiring Diagram -- COMBSW -- ...........................73 .
Wiring Diagram -- F/FOG -- ................................. 53 . Combination Switch Reading Function ..................74 .
Terminals and Reference Values for BCM ............. 55 . CONSULT-II Function (BCM) .................................74 .
Terminals and Reference Values for IPDM E/R ..... 55 . CONSULT-II START PROCEDURE ....................74 .
How to Proceed With Trouble Diagnosis ............... 55 . DATA MONITOR .................................................74 .
Preliminary Check ................................................. 55
. Combination Switch Inspection ..............................75 .
CHECK POWER SUPPLY AND GROUND CIR- Removal and Installation ........................................77 .
CUIT FOR BCM .................................................. 55 . Switch Circuit Inspection ........................................77 .
CHECK POWER SUPPLY AND GROUND CIR- STOP LAMP .............................................................78.
CUIT FOR IPDM E/R .......................................... 55 . System Description ................................................78 .
CONSULT-II Function (BCM) ................................. 55 . Wiring Diagram -- STOP/L -- ...............................79 .
CONSULT-II Function (IPDM E/R) ......................... 55 . High-Mounted Stop Lamp ......................................80 .
Front Fog Lamps Do Not Illuminate (Both Sides) ... 55 BULB REPLACEMENT .......................................80 .
Front Fog Lamp Does Not Illuminate (One Side) ... 56 REMOVAL AND INSTALLATION ........................80 .
Aiming Adjustment ................................................. 58
. Stop Lamp ..............................................................80
.
Bulb Replacement ................................................. 59. BULB REPLACEMENT .......................................80 .
Removal and Installation ....................................... 59 . REMOVAL AND INSTALLATION ........................80 .
FRONT FOG LAMP ............................................ 59 . BACK-UP LAMP ......................................................81 .
TURN SIGNAL AND HAZARD WARNING LAMPS... 60 Wiring Diagram -- BACK/L -- ...............................81 .

Revision: September 2006 LT-2 2007 Pathfinder
Bulb Replacement ................................................. 82
. TRAILER POWER SUPPLY OPERATION ....... 100 .
Removal and Installation ....................................... 82 . Schematic ............................................................ 102
. A
PARKING, LICENSE PLATE AND TAIL LAMPS .... 83 . Wiring Diagram -- T/TOW -- .............................. 103 .
Component Parts and Harness Connector Location 83 ... INTERIOR ROOM LAMP ....................................... 108 .
System Description ............................................... 83
. Component Parts and Harness Connector Location 108 . B
OPERATION BY LIGHTING SWITCH ............... 83 . System Description .............................................. 109 .
COMBINATION SWITCH READING FUNCTION 84 ... POWER SUPPLY AND GROUND ................... 109 .
EXTERIOR LAMP BATTERY SAVER CONTROL 84 ... SWITCH OPERATION ..................................... 110 .
CAN Communication System Description ............. 84 . ROOM LAMP TIMER OPERATION ................. 110 . C
Schematic ............................................................. 85
. INTERIOR LAMP BATTERY SAVER CONTROL ..111
Wiring Diagram -- TAIL/L -- ................................. 86 . Schematic ............................................................ 112
.
Terminals and Reference Values for BCM ............ 90 . Wiring Diagram -- INT/L -- ................................. 114 . D
Terminals and Reference Values for IPDM E/R .... 90 . Terminals and Reference Values for BCM ........... 119 .
How to Proceed With Trouble Diagnosis ............... 90 . How to Proceed With Trouble Diagnosis ............. 119 .
Preliminary Check ................................................. 90
. Preliminary Check ............................................... 119 . E
CHECK POWER SUPPLY AND GROUND CIR- INSPECTION FOR POWER SUPPLY AND
CUIT FOR BCM ................................................. 90 . GROUND CIRCUIT FOR BCM ........................ 119 .
CHECK POWER SUPPLY AND GROUND CIR- CONSULT-II Function (BCM) .............................. 119 .
CUIT FOR IPDM E/R ......................................... 90 . CONSULT-II START PROCEDURE ................. 119 . F
CONSULT-II Function (BCM) ................................ 90 . WORK SUPPORT ............................................ 119 .
CONSULT-II Function (IPDM E/R) ........................ 90 . DATA MONITOR .............................................. 119 .
Parking, Side Marker, License Plate and/or Tail ACTIVE TEST .................................................. 120 . G
Lamps Do Not Illuminate ....................................... 90 . Room/Map Lamp Control Does Not Operate ...... 120 .
Parking, Side Marker, License Plate and Tail Lamps Personal Lamp Control Does Not Operate (Room/
Do Not Turn OFF (After Approx. 10 Minutes) ........ 97 . Map Lamps Operate) ........................................... 122 . H
Bulb Replacement ................................................. 97
. All Interior Room Lamps Do Not Operate ............ 123 .
FRONT PARKING LAMP ................................... 97 . Ignition Keyhole Illumination Control Does Not
TAIL LAMP ......................................................... 97
. Operate ................................................................ 123
.
I
LICENSE PLATE LAMP ..................................... 97 . ILLUMINATION ...................................................... 126 .
Removal and Installation ....................................... 97 . Component Parts and Harness Connector Location 126 .
LICENSE PLATE LAMP ..................................... 97 . System Description .............................................. 126 .
REAR COMBINATION LAMP ................................. 98 . ILLUMINATION OPERATION BY LIGHTING J
Bulb Replacement ................................................. 98
. SWITCH ........................................................... 127
.
REMOVAL .......................................................... 98
. EXTERIOR LAMP BATTERY SAVER CONTROL 128 .
INSTALLATION .................................................. 98. CAN Communication System Description ........... 128 . LT
Removal and Installation ....................................... 98 . Schematic ............................................................ 129
.
REMOVAL .......................................................... 98
. Wiring Diagram -- ILL -- ..................................... 132 .
INSTALLATION .................................................. 98. Removal and Installation ..................................... 141 .
L
TRAILER TOW ........................................................ 99
. ILLUMINATION CONTROL SWITCH ............... 141 .
Component Parts and Harness Connector Location 99 ... BULB SPECIFICATIONS ....................................... 142 .
System Description ............................................... 99
. Headlamp ............................................................ 142
.
TRAILER TAIL LAMP OPERATION ................. 100 . Exterior Lamp ...................................................... 142
. M
TRAILER STOP, TURN SIGNAL AND HAZARD Interior Lamp/Illumination .................................... 142 .
LAMP OPERATION ......................................... 100 .

Revision: September 2006 LT-3 2007 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:
G 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.
G 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.
G 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

G Never work with wet hands.
G Turn the lighting switch OFF before disconnecting and connecting the connector.
G When checking the headlamp on/off operation, check it on vehicle and with the power connected to the
vehicle-side connector.
G 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.
G When the bulb has burned out, wrap it in a thick vinyl bag and discard. Do not break the bulb.
G 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.
G Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.

Revision: September 2006 LT-4 2007 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-
J
tral processing unit) of the IPDM E/R controls the front headlamp high and front headlamp low relay coils.
When energized, these relays direct power to the respective headlamps, which then illuminate.
OUTLINE LT
Power is supplied at all times
G to ignition relay, located in the IPDM E/R,
G to headlamp high relay, located in the IPDM E/R, L
G to headlamp low relay, located in the IPDM E/R,
G through 20A fuse (No. 53, located in the IPDM E/R)
G to CPU of the IPDM E/R, and M
G through 50A fusible link (letter g , located in the fuse and fusible link box)
G to BCM terminal 70.
With the ignition switch in the ON or START position, power is supplied
G to ignition relay, located in the IPDM E/R, and
G through 10A fuse [No. 1, located in the fuse block (J/B)]
G to BCM terminal 38.
Ground is supplied
G to BCM terminal 67
G through grounds M57, M61 and M79, and
G to IPDM E/R terminals 38 and 59
G through grounds E9, E15 and E24.

Revision: September 2006 LT-5 2007 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
G through 15A fuse (No. 41, located in the IPDM E/R)
G through IPDM E/R terminal 54
G to front headlamp RH terminal 3, and
G through 15A fuse (No. 40, located in the IPDM E/R)
G through IPDM E/R terminal 52
G to front headlamp LH terminal 3.
Ground is supplied
G to front headlamp LH and RH terminal 2
G 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
G through 10A fuse (No. 34, located in the IPDM E/R)
G through IPDM E/R terminal 56
G to front headlamp RH terminal 1, and
G through 10A fuse (No. 35, located in the IPDM E/R)
G through IPDM E/R terminal 55
G to front headlamp LH terminal 1.
Ground is supplied
G to front headlamp LH and RH terminal 2
G 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-39, "System Description" .
VEHICLE SECURITY SYSTEM (PANIC ALARM)
The vehicle security system (panic alarm) will flash the high beams if the system is triggered. Refer to BL-42,
"Panic Alarm Operation" .
CAN Communication System Description EKS00FU1

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

Revision: September 2006 LT-6 2007 Pathfinder
HEADLAMP (FOR USA)

Schematic EKS00FU2

WKWA5434E

Revision: September 2006 LT-7 2007 Pathfinder
HEADLAMP (FOR USA)

Wiring Diagram -- H/LAMP -- EKS00FU3

WKWA5435E

Revision: September 2006 LT-8 2007 Pathfinder
HEADLAMP (FOR USA)

WKWA2018E

Revision: September 2006 LT-9 2007 Pathfinder
HEADLAMP (FOR USA)

WKWA2019E

Revision: September 2006 LT-10 2007 Pathfinder
HEADLAMP (FOR USA)

WKWA4222E

Revision: September 2006 LT-11 2007 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-27, "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

CHECK POWER SUPPLY AND GROUND CIRCUIT FOR BCM
Refer to BCS-16, "BCM Power Supply and Ground Circuit Check" .
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR IPDM E/R
Refer to PG-29, "IPDM E/R Power/Ground Circuit 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 START PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
WORK SUPPORT
Display Item List
Item Description CONSULT-II Factory setting
Exterior lamp battery saver control mode can be changed ON

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