Nissan Pathfinder (2009 year). Manual - part 401

EXHAUST SYSTEM

EX-5

< ON-VEHICLE REPAIR >

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ON-VEHICLE REPAIR

EXHAUST SYSTEM

Exploded View

INFOID:0000000003939459

VQ40DE Exhaust System

WBIA0729E

1.

Tailpipe hanger bracket

2.

Tailpipe

3.

Gasket

4.

Main muffler

5.

Right front exhaust tube

6.

Ring gasket

7.

Heated oxygen sensor 2 (bank 2)

8.

Heated oxygen sensor 2 (bank 1)

9.

Left front exhaust tube

10. Center exhaust tube

11. Muffler hanger bracket front

12. Muffler hanger bracket rear

Front

2009 Pathfinder

EX-6

< ON-VEHICLE REPAIR >

EXHAUST SYSTEM

VK56DE Exhaust System

Removal and Installation

INFOID:0000000003939460

WARNING:

• Perform the operation with the exhaust system fully cooled. The system will be hot just after the

engine stops. 

• Be careful not to cut your hand on the heat insulator edge.

CAUTION:

• Be sure to use genuine exhaust system parts or equivalents which are specially designed for heat

resistance, corrosion resistance, and shape.

REMOVAL

Remove exhaust system components using power tool.
• Remove heated oxygen sensor using Tool as needed.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Always replace exhaust gaskets with new ones when reassembling.
• Before installing a new heated oxygen sensor, clean and lube the exhaust tube threads using suit-

able tool.

AWBIA0080GB

1.

Tailpipe hanger bracket

2.

Tailpipe

3.

Clamp

4.

Main muffler

5.

Gasket

6.

Heated oxygen sensor 2 (bank 2)

7.

Right front exhaust tube

8.

Ring gasket

9.

Heated oxygen sensor 2 (bank 1)

10. Left front exhaust tube

11. Center exhaust tube

12. Clamp

13. Muffler hanger bracket front

14. Muffler hanger bracket rear

Tool number

: KV10114400 (J-38365)

Oxygen sensor thread cleaner

: 

—

(J-43897-18)

Oxygen sensor thread cleaner

: 

—

(J-43897-12)

2009 Pathfinder

EXHAUST SYSTEM

EX-7

< ON-VEHICLE REPAIR >

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• Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7

in) onto a hard surface such as a concrete floor; install a new one.

• Do not over-tighten the heated oxygen sensor. Doing so may damage the heated oxygen sensor,

resulting in the MIL coming on.

• If any mounting insulator is badly deformed, repair or replace it. If deposits such as mud pile up on

the mounting insulators, clean and inspect them.

• Temporarily tighten the nuts on the exhaust manifold side and the bolts on the vehicle side. Check

each part for interference with other components, and then tighten the nuts and bolts to specifica-
tion. 

INSPECTION AFTER INSTALLATION

• With the engine running, check exhaust tube joints for gas leakage and unusual noises.
• Check to ensure that mounting brackets and mounting rubbers are installed properly and free from undue

stress. Improper installation could result in excessive noise and vibration. 

2009 Pathfinder

EXL-1

DRIVER CONTROLS

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SECTION 

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CONTENTS

EXTERIOR LIGHTING SYSTEM

BASIC INSPECTION  ....................................

4

DIAGNOSIS AND REPAIR WORKFLOW  ..........

4

Work Flow  .................................................................

4

FUNCTION DIAGNOSIS ...............................

7

HEADLAMP .........................................................

7

System Diagram ........................................................

7

System Description  ...................................................

7

Component Parts Location ........................................

7

Component Description .............................................

8

DAYTIME RUNNING LIGHT SYSTEM  ...............

9

System Diagram ........................................................

9

System Description  ...................................................

9

Component Parts Location ......................................

10

Component Description ...........................................

10

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

12

System Diagram ......................................................

12

System Description  .................................................

12

Component Parts Location ......................................

13

Component Description ...........................................

13

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

15

System Diagram ......................................................

15

System Description  .................................................

15

Component Parts Location ......................................

15

Component Description ...........................................

16

TURN SIGNAL AND HAZARD WARNING 
LAMPS ...............................................................

17

System Diagram ......................................................

17

System Description  .................................................

17

Component Parts Location ......................................

17

Component Description ...........................................

18

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

19

System Diagram ......................................................

19

System Description  .................................................

19

Component Parts Location  ......................................

19

Component Description  ...........................................

20

COMBINATION SWITCH READING SYSTEM 

...

21

System Diagram  ......................................................

21

System Description ..................................................

21

Component Parts Location  ......................................

24

DIAGNOSIS SYSTEM (BCM)  ...........................

26

HEADLAMP ...............................................................

26

HEADLAMP : CONSULT-III Function (BCM - 
HEAD LAMP) ...........................................................

26

FLASHER ...................................................................

27

FLASHER : CONSULT-III Function (BCM - 
FLASHER) ...............................................................

27

COMB SW ..................................................................

27

COMB SW : CONSULT-III Function (BCM - 
COMB SW) ..............................................................

27

DIAGNOSIS SYSTEM (IPDM E/R)  ...................

29

Diagnosis Description ..............................................

29

CONSULT - III Function (IPDM E/R)  .......................

31

COMPONENT DIAGNOSIS  .........................

34

POWER SUPPLY AND GROUND CIRCUIT  ....

34

BCM (BODY CONTROL MODULE)  ..........................

34

BCM (BODY CONTROL MODULE) : Diagnosis 
Procedure ................................................................

34

IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM)  ..............................

35

IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM) : Diagnosis Pro-
cedure ......................................................................

35

HEADLAMP (HI) CIRCUIT ................................

36

Description ...............................................................

36

2009 Pathfinder

EXL-2

Component Function Check  ...................................

36

Diagnosis Procedure  ..............................................

36

HEADLAMP (LO) CIRCUIT  ...............................

38

Description ..............................................................

38

Component Function Check  ...................................

38

Diagnosis Procedure  ..............................................

38

FRONT FOG LAMP CIRCUIT  ...........................

40

Description ..............................................................

40

Component Function Check  ...................................

40

Diagnosis Procedure  ..............................................

40

PARKING LAMP CIRCUIT  ................................

42

Description ..............................................................

42

Component Function Check  ...................................

42

Diagnosis Procedure  ..............................................

42

TURN SIGNAL LAMP CIRCUIT  ........................

47

Description ..............................................................

47

Component Function Check  ...................................

47

Diagnosis Procedure  ..............................................

47

OPTICAL SENSOR  ...........................................

50

Description ..............................................................

50

Component Function Check  ...................................

50

Diagnosis Procedure  ..............................................

50

HEADLAMP .......................................................

52

Wiring Diagram  .......................................................

52

DAYTIME LIGHT SYSTEM ................................

56

Wiring Diagram  .......................................................

56

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

64

Wiring Diagram  .......................................................

64

FRONT FOG LAMP SYSTEM  ...........................

71

Wiring Diagram  .......................................................

71

TURN SIGNAL AND HAZARD WARNING 
LAMP SYSTEM  .................................................

75

Wiring Diagram  .......................................................

75

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

81

Wiring Diagram  .......................................................

81

STOP LAMP  ......................................................

88

Wiring Diagram  .......................................................

88

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

93

Wiring Diagram  .......................................................

93

TRAILER TOW  ..................................................

97

Wiring Diagram  .......................................................

97

ECU DIAGNOSIS  .......................................

104

BCM (BODY CONTROL MODULE)  ................

104

Reference Value  ....................................................

104

Terminal Layout  .....................................................

107

Physical Values .....................................................

107

Wiring Diagram  .....................................................

113

Fail Safe ...............................................................

116

DTC Inspection Priority Chart .............................

117

DTC Index ............................................................

117

IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) ................

119

Reference Value  ...................................................

119

Terminal Layout  ....................................................

121

Physical Values .....................................................

121

Wiring Diagram  .....................................................

125

Fail Safe ...............................................................

129

DTC Index ............................................................

131

SYMPTOM DIAGNOSIS  ...........................

132

EXTERIOR LIGHTING SYSTEM SYMPTOMS ..

132

Symptom Table .....................................................

132

NORMAL OPERATING CONDITION  ...............

134

Description ............................................................

134

BOTH SIDE HEADLAMPS DO NOT SWITCH 
TO HIGH BEAM ................................................

135

Description ............................................................

135

Diagnosis Procedure .............................................

135

BOTH SIDE HEADLAMPS (LO) ARE NOT 
TURNED ON .....................................................

136

Description ............................................................

136

Diagnosis Procedure .............................................

136

PARKING, LICENSE PLATE AND TAIL 
LAMPS ARE NOT TURNED ON  ......................

137

Description ............................................................

137

Diagnosis Procedure .............................................

137

BOTH SIDE FRONT FOG LAMPS ARE NOT 
TURNED ON .....................................................

138

Description ............................................................

138

Diagnosis Procedure .............................................

138

PRECAUTION ...........................................

139

PRECAUTIONS  ................................................

139

Precaution for Supplemental Restraint System 
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................

139

ON-VEHICLE REPAIR  ..............................

140

ADJUSTMENT AND INSPECTION  ..................

140

HEADLAMP .............................................................

140

HEADLAMP : Aiming Adjustment  .........................

140

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

141

FRONT FOG LAMP : Aiming Adjustment  .............

141

REMOVAL AND INSTALLATION .............

143

2009 Pathfinder

EXL-3

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HEADLAMP ......................................................

143

Bulb Replacement .................................................

143

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

143

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

144

OPTICAL SENSOR  ..........................................

145

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

145

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

146

Bulb Replacement .................................................

146

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

146

LIGHTING & TURN SIGNAL SWITCH  ............

147

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

147

HAZARD SWITCH ............................................

148

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

148

HIGH-MOUNTED STOP LAMP  ......................

149

High-Mounted Stop Lamp ......................................

149

LICENSE PLATE LAMP  .................................

150

Bulb Replacement  .................................................

150

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

150

REAR COMBINATION LAMP .........................

151

Bulb Replacement  .................................................

151

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

151

SERVICE DATA AND SPECIFICATIONS 
(SDS) ..........................................................

152

BULB SPECIFICATIONS ................................

152

Headlamp ..............................................................

152

Exterior Lamp  ........................................................

152

2009 Pathfinder

EXL-4

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000003939581

OVERALL SEQUENCE

JPLIA0089GB

2009 Pathfinder

DIAGNOSIS AND REPAIR WORKFLOW

EXL-5

< BASIC INSPECTION >

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DETAILED FLOW

1.

INTERVIEW FOR MALFUNCTION

Find out what the customer's concerns are.

>> GO TO 2

2.

SYMPTOM CHECK

Verify the symptom from the customer's information.

>> GO TO 3

3.

BASIC INSPECTION

Check the operation of each part. Check that any concerns occur other than those mentioned in the customer
interview.

>> GO TO 4

4.

SELF-DIAGNOSIS WITH CONSULT-III

Perform the self diagnosis with CONSULT-III. Check that any DTC is detected.

Is any DTC detected?

YES

>> GO TO 5

NO

>> GO TO 6

5.

TROUBLE DIAGNOSIS BY DTC

Perform the trouble diagnosis for the detected DTC. Specify the malfunctioning part.

>> GO TO 9

6.

FAIL-SAFE ACTIVATION CHECK

Determine if the customer's concern is related to fail-safe activation.

Does the fail-safe activate?

YES

>> GO TO 7

NO

>> GO TO 8

7.

SYSTEM DIAGNOSIS

Perform the system diagnosis for the system in which the fail-safe activates. Specify the malfunctioning part.

>> GO TO 9

8.

SYMPTOM DIAGNOSIS

Perform the symptom diagnosis. Specify the malfunctioning part.

>> GO TO 9

9.

MALFUNCTION PART REPAIR

Repair or replace the malfunctioning part.

>> GO TO 11

10.

REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT-III)

Perform the self diagnosis with CONSULT-III. Verfied that no DTCs are detected. Erase all DTCs detected
prior to the repair. Verify that DTC is not detected again.
Is any DTC detected?

2009 Pathfinder