Nissan Pathfinder (2006 year). Manual - part 305

TROUBLE DIAGNOSIS FOR SYSTEM

LAN-201

[CAN]

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LAN

2006 Pathfinder

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect combination meter connector.

2.

Check resistance between combination meter harness connec-
tor terminals.

OK or NG

OK

>> Replace combination meter.

NG

>> Repair harness between combination meter and data

link connector.

Transfer Control Unit Circuit Inspection

UKS0051N

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check terminals and connector of transfer control unit for damage, bend and loose connection (control
unit side and harness side).

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

All-mode 4WD system
1.

Disconnect transfer control unit connector.

2.

Check resistance between transfer control unit harness connec-
tor terminals.

Part time 4WD system

1.

Disconnect transfer control unit connector.

2.

Check resistance between transfer control unit harness connec-
tor terminals.

OK or NG

OK

>> Replace transfer control unit.

NG

>> Repair harness between transfer control unit and data

link connector.

Combination 

meter connector

Terminal

Resistance

(Approx.)

M24

12

11 

54 – 66 

Ω

PKIA6837E

Transfer control 

unit connector

Terminal

Resistance

(Approx.)

M152

7

8

54 – 66 

Ω

PKIA6844E

Transfer control 

unit connector

Terminal

Resistance

(Approx.)

M152

1

2

54 – 66 

Ω

PKIC1656E

LAN-202

[CAN]

TROUBLE DIAGNOSIS FOR SYSTEM

2006 Pathfinder

Driver Seat Control Unit Circuit Inspection

UKS0051O

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check following terminals and connectors for damage, bend and loose connection (control unit side and
harness side).

–

Driver seat control unit connector

–

Harness connector P1

–

Harness connector B37

–

Harness connector B69

–

Harness connector M40

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect driver seat control unit connector.

2.

Check resistance between driver seat control unit harness con-
nector terminals.

OK or NG

OK

>> Replace driver seat control unit.

NG

>> Repair harness between driver seat control unit and

data link connector.

ABS Actuator and Electric Unit (Control Unit) Circuit Inspection

UKS0051P

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check terminals and connector of ABS actuator and electric unit (control unit) for damage, bend and loose
connection (control unit side and harness side).

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect ABS actuator and electric unit (control unit) connector.

2.

Check resistance between ABS actuator and electric unit (con-
trol unit) harness connector terminals.

OK or NG

OK

>> Replace ABS actuator and electric unit (control unit).

NG

>> Repair harness between ABS actuator and electric unit

(control unit) and IPDM E/R.

Transfer control 

unit connector

Terminal

Resistance

(Approx.)

P2

3

19

54 – 66 

Ω

PKIA6842E

ABS actuator and 

electric unit (con-

trol unit) connector

Terminal

Resistance

(Approx.)

E125

11

15

54 – 66 

Ω

SKIA6872E

TROUBLE DIAGNOSIS FOR SYSTEM

LAN-203

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2006 Pathfinder

IPDM E/R Circuit Inspection

UKS0051Q

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check terminals and connector of IPDM E/R for damage, bend and loose connection (control module side
and harness side).

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect IPDM E/R connector.

2.

Check resistance between IPDM E/R harness connector termi-
nals.

OK or NG

OK

>> Replace IPDM E/R.

NG

>> Repair harness between IPDM E/R and ABS actuator

and electric unit (control unit).

CAN Communication Circuit Inspection

UKS0051R

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Disconnect the harness connector for each unit on the CAN network and check terminals for deformation,
disconnection, looseness or damage.

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector as necessary.

2. 

CHECK HARNESS FOR SHORT CIRCUIT

With all module and control unit connectors disconnected, check
continuity between data link connector terminals.

OK or NG

OK

>> GO TO 3.

NG

>>

●

Repair harness.

●

Replace harness if shielded lines are used for the
harness.

IPDM E/R 
connector

Terminal

Resistance

(Approx.)

E122

39

40

108 – 132 

Ω

PKIA8141E

Data link

connector

Terminal

Continuity

M22

6

14 No

SKIA6868E

LAN-204

[CAN]

TROUBLE DIAGNOSIS FOR SYSTEM

2006 Pathfinder

3. 

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between data link connector terminals and ground.

OK or NG

OK

>> GO TO 4.

NG

>>

●

Repair harness.

●

Replace harness if shielded lines are used for the
harness.

4. 

ECM AND IPDM E/R INTERNAL CIRCUIT INSPECTION

1.

Remove ECM and IPDM E/R from vehicle.

2.

Check resistance between ECM terminals.

3.

Check resistance between IPDM E/R terminals.

OK or NG

OK

>> GO TO 5.

NG

>> Replace ECM and/or IPDM E/R.

5. 

CHECK SYMPTOM

1.

Fill in described symptoms on the column “Symptom” in the check sheet.

2.

Connect all connectors, and then make sure that the symptom is reproduced.

Check results

Reproduced>>GO TO 6.
Not reproduced>>Refer  to 

LAN-14, "Example of Filling in Check Sheet When Initial Conditions Are Not

Reproduced"

 .

6. 

UNIT REPRODUCIBILITY INSPECTION

Perform the following procedure for each unit on the CAN network, and then perform reproducibility test.
1.

Turn ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Disconnect the unit connector.

4.

Connect the battery cable to the negative terminal.

5.

Make sure that the symptom filled in the “Symptom” of the check sheet is reproduced.

NOTE:
Malfunction (related to a unit that the connector is disconnected) is reproduced. Do not confuse the mal-
function with the symptom filled in the column of “Symptom” on the check sheet.

Inspection results

Reproduced>>Connect the disconnected connector. Check other units applying the above procedure.
Not reproduced>>Replace the unit that the connector is disconnected.

IPDM E/R Ignition Relay Circuit Inspection

UKS0051S

Check the following. If no malfunction is found, replace the IPDM E/R.

Data link

connector

Terminal

Ground

Continuity

M22

6

No

14

No

PKIA9872E

Terminal

Resistance (Approx.)

94

86

108 – 132 

Ω

Terminal

Resistance (Approx.)

39

40

108 – 132 

Ω

LKIA0037E

TROUBLE DIAGNOSIS FOR SYSTEM

LAN-205

[CAN]

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2006 Pathfinder

●

IPDM E/R power supply circuit. Refer to 

PG-30, "IPDM E/R Power/Ground Circuit Inspection"

 .

●

Ignition power supply circuit. Refer to 

PG-14, "IGNITION POWER SUPPLY — IGNITION SW. IN ON

AND/OR START"

 .

LAN-206

[CAN]

TROUBLE DIAGNOSIS FOR SYSTEM

2006 Pathfinder

LT-1

LIGHTING SYSTEM

K  ELECTRICAL

CONTENTS

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SECTION 

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LT

2006 Pathfinder

PRECAUTIONS .......................................................... 4

Precautions for Supplemental Restraint System 
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
General precautions for service operations  ............. 4

HEADLAMP (FOR USA)  ............................................ 5

Component Parts and Harness Connector Location 

..... 5

System Description  .................................................. 5

OUTLINE ............................................................... 5
BATTERY SAVER CONTROL  .............................. 6
AUTO LIGHT OPERATION ................................... 6
VEHICLE SECURITY SYSTEM (PANIC ALARM) 

..... 6

CAN Communication System Description ................ 6
Schematic ................................................................ 7
Wiring Diagram — H/LAMP —  ................................. 8
Terminals and Reference Values for BCM  ............. 12
Terminals and Reference Values for IPDM E/R  ..... 12
How to Proceed With Trouble Diagnosis ................ 12
Preliminary Check  .................................................. 12
CONSULT-II Function (BCM)  ................................. 12

CONSULT-II OPERATION  .................................. 12
WORK SUPPORT ............................................... 13
DATA MONITOR  ................................................. 13
ACTIVE TEST  ..................................................... 14
SELF-DIAGNOSTIC RESULTS  .......................... 15

CONSULT-II Function (IPDM E/R)  ......................... 15

CONSULT-II OPERATION  .................................. 15
DATA MONITOR  ................................................. 16
ACTIVE TEST  ..................................................... 17

Headlamp HI Does Not Illuminate (Both Sides)  ..... 17
Headlamp HI Does Not Illuminate (One Side)  ....... 19
High Beam Indicator Lamp Does Not Illuminate  .... 20
Headlamp LO Does Not Illuminate (Both Sides)  .... 21
Headlamp LO Does Not Illuminate (One Side)  ...... 23
Headlamps Do Not Turn OFF  ................................ 24
Aiming Adjustment  ................................................. 25

LOW BEAM AND HIGH BEAM  ........................... 26

Bulb Replacement .................................................. 27

HEADLAMP BULB  .............................................. 27
FRONT TURN SIGNAL/PARKING LAMP  ........... 27

FRONT SIDE MARKER LAMP  ........................... 27

Removal and Installation  ........................................ 27

FRONT COMBINATION LAMP  ........................... 27

Disassembly and Assembly .................................... 28

FRONT COMBINATION LAMP  ........................... 28

HEADLAMP (FOR CANADA) - DAYTIME LIGHT 
SYSTEM - .................................................................. 29

Component Parts and Harness Connector Location 

... 29

System Description ................................................. 29

OUTLINE ............................................................. 30
DAYTIME LIGHT OPERATION  ........................... 31
COMBINATION SWITCH READING FUNCTION ... 31
AUTO LIGHT OPERATION  ................................. 31

CAN Communication System Description  .............. 31
Schematic ............................................................... 32
Wiring Diagram — DTRL —  ................................... 33
Terminals and Reference Values for BCM .............. 37
Terminals and Reference Values for IPDM E/R ...... 37
How to Proceed With Trouble Diagnosis  ................ 37
Preliminary Check  .................................................. 37

CHECK BCM CONFIGURATION  ........................ 37
INSPECTION FOR POWER SUPPLY AND 
GROUND CIRCUIT  ............................................. 37
INSPECTION PARKING BRAKE SWITCH CIR-
CUIT .................................................................... 37

CONSULT-II Functions  ........................................... 38
Daytime Light Control Does Not Operate Properly 
(Normal Headlamps Operate Properly)  .................. 38
Aiming Adjustment .................................................. 39
Bulb Replacement  .................................................. 39
Removal and Installation  ........................................ 39
Disassembly and Assembly .................................... 39

AUTO LIGHT SYSTEM  ............................................. 40

Component Parts and Harness Connector Location 

... 40

System Description ................................................. 41

OUTLINE ............................................................. 41
COMBINATION SWITCH READING FUNCTION ... 41
EXTERIOR LAMP BATTERY SAVER CONTROL ... 41
DELAY TIMER FUNCTION  ................................. 41

CAN Communication System Description  .............. 41

LT-2

2006 Pathfinder

Major Components and Functions .......................... 42
Schematic ............................................................... 43
Wiring Diagram — AUTO/L — ................................ 44
Terminals and Reference Values for BCM .............. 47
Terminals and Reference Values for IPDM E/R ...... 47
How to Proceed With Trouble Diagnosis  ................ 47
Preliminary Check  .................................................. 47

SETTING CHANGE FUNCTIONS ....................... 47
CHECK BCM CONFIGURATION  ........................ 47
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 47

CONSULT-II Function (BCM) .................................. 47

CONSULT-II OPERATION ................................... 47
WORK SUPPORT  ............................................... 48
DATA MONITOR .................................................. 49
ACTIVE TEST  ..................................................... 50

CONSULT-II Function (IPDM E/R) .......................... 51

CONSULT-II OPERATION ................................... 51
DATA MONITOR .................................................. 52
ACTIVE TEST  ..................................................... 52

Trouble Diagnosis Chart by Symptom  .................... 53
Lighting Switch Inspection  ...................................... 53
Optical Sensor System Inspection .......................... 54
Removal and Installation  ........................................ 55

OPTICAL SENSOR  ............................................. 55

FRONT FOG LAMP  .................................................. 56

Component Parts and Harness Connector Location ... 56
System Description ................................................. 56

OUTLINE ............................................................. 56
COMBINATION SWITCH READING FUNCTION ... 57
EXTERIOR LAMP BATTERY SAVER CONTROL ... 57

CAN Communication System Description  .............. 57
Wiring Diagram — F/FOG — .................................. 58
Terminals and Reference Values for BCM .............. 60
Terminals and Reference Values for IPDM E/R ...... 60
How to Proceed With Trouble Diagnosis  ................ 60
Preliminary Check  .................................................. 60

CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 60

CONSULT-II Functions  ........................................... 60
Front Fog Lamps Do Not Illuminate (Both Sides) ... 60
Front Fog Lamp Does Not Illuminate (One Side) ... 61
Aiming Adjustment .................................................. 62
Bulb Replacement  .................................................. 63
Removal and Installation  ........................................ 63

FRONT FOG LAMP ............................................. 63

TURN SIGNAL AND HAZARD WARNING LAMPS ... 64

Component Parts and Harness Connector Location ... 64
System Description ................................................. 64

OUTLINE ............................................................. 64
TURN SIGNAL OPERATION ............................... 64
HAZARD LAMP OPERATION  ............................. 65
REMOTE KEYLESS ENTRY SYSTEM OPERA-
TION .................................................................... 65
COMBINATION SWITCH READING FUNCTION ... 66

CAN Communication System Description  .............. 66
Wiring Diagram — TURN — ................................... 67
Terminals and Reference Values for BCM .............. 69
How to Proceed With Trouble Diagnosis  ................ 69

Preliminary Check  ...................................................69

CHECK POWER SUPPLY AND GROUND CIR-
CUIT .....................................................................69

CONSULT-II Function (BCM)  ..................................69

CONSULT-II OPERATION  ...................................69
DATA MONITOR  ..................................................70
ACTIVE TEST ......................................................71

Turn Signal Lamp Does Not Operate ......................71
Rear Turn Signal Lamp Does Not Operate  .............72
Hazard Warning Lamp Does Not Operate But Turn 
Signal Lamps Operate  ............................................73
Turn Signal Indicator Lamp Does Not Operate  .......75
Bulb Replacement ...................................................76

FRONT TURN SIGNAL LAMP .............................76
REAR TURN SIGNAL LAMP  ...............................76

Removal and Installation .........................................76

FRONT TURN SIGNAL LAMP .............................76
REAR TURN SIGNAL LAMP  ...............................76

LIGHTING AND TURN SIGNAL SWITCH  ................77

Removal and Installation .........................................77

REMOVAL ............................................................77
INSTALLATION ....................................................77

HAZARD SWITCH .....................................................78

Removal and Installation .........................................78

REMOVAL ............................................................78
INSTALLATION ....................................................78

COMBINATION SWITCH  ..........................................79

Wiring Diagram — COMBSW —  ............................79
Combination Switch Reading Function  ...................80
CONSULT-II Function (BCM)  ..................................80

CONSULT-II OPERATION  ...................................80
DATA MONITOR  ..................................................81

Combination Switch Inspection  ...............................82
Removal and Installation .........................................84
Switch Circuit Inspection .........................................84

STOP LAMP  ..............................................................85

System Description  .................................................85
Wiring Diagram — STOP/L —  ................................86
High-Mounted Stop Lamp  .......................................87

BULB REPLACEMENT ........................................87
REMOVAL AND INSTALLATION  .........................87

Stop Lamp ...............................................................87

BULB REPLACEMENT ........................................87
REMOVAL AND INSTALLATION  .........................87

BACK-UP LAMP  .......................................................88

Wiring Diagram — BACK/L —  ................................88
Bulb Replacement ...................................................89
Removal and Installation .........................................89

PARKING, LICENSE PLATE AND TAIL LAMPS  ......90

Component Parts and Harness Connector Location ...90
System Description  .................................................90

OPERATION BY LIGHTING SWITCH  .................90
COMBINATION SWITCH READING FUNCTION ...91
EXTERIOR LAMP BATTERY SAVER CONTROL ...91

CAN Communication System Description  ..............91
Schematic ...............................................................92
Wiring Diagram — TAIL/L — ...................................93
Terminals and Reference Values for BCM  ..............97
Terminals and Reference Values for IPDM E/R  ......97