Nissan Pathfinder (2012 year). Manual - part 457

LAN-84

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

HVAC BRANCH LINE CIRCUIT

HVAC BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000007355007

1.

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the terminals and connectors of the A/C auto amp. for damage, bend and loose connection (unit

side and connector side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of A/C auto amp.

2. Check the resistance between the A/C auto amp. harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the A/C auto amp. branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the A/C auto amp. Refer to 

HAC-91, "A/C Auto Amp Power

and Ground Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the front air control. Refer to 

VTL-7, "Removal and Installation"

.

YES (Past error)>>Error was detected in the A/C auto amp. branch line.

NO

>> Repair the power supply and the ground circuit.

A/C auto amp. harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M50

41

40

Approx. 54 – 66

August 2012

2012 Pathfinder

LAN

M&A BRANCH LINE CIRCUIT

LAN-85

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

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M&A BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000007355008

1.

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the terminals and connectors of the combination meter for damage, bend and loose connection

(unit side and connector side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of combination meter.

2. Check the resistance between the combination meter harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the combination meter branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the combination meter. Refer to  

MWI-31, "COMBINATION

METER : Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the combination meter. Refer to  

MWI-89, "Removal and Installation"

.

YES (Past error)>>Error was detected in the combination meter branch line.

NO

>> Repair the power supply and the ground circuit.

Combination meter harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M24

12

11

Approx. 54 – 66

August 2012

2012 Pathfinder

LAN-86

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

STRG BRANCH LINE CIRCUIT

STRG BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000007355009

1.

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the terminals and connectors of the steering angle sensor for damage, bend and loose connection

(unit side and connector side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of steering angle sensor.

2. Check the resistance between the steering angle sensor harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the steering angle sensor branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the steering angle sensor. Refer to the following.

• VQ40DE: 

BRC-88, "Wiring Diagram - With VQ40DE"

• VK56DE: 

BRC-207, "Wiring Diagram - With VK56DE"

Is the inspection result normal?

YES (Present error)>>Replace the steering angle sensor. Refer to the following.

• VQ40DE: 

BRC-114, "Removal and Installation"

• VK56DE: 

BRC-233, "Removal and Installation"

YES (Past error)>>Error was detected in the steering angle sensor branch line.

NO

>> Repair the power supply and the ground circuit.

Steering angle sensor harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M47

4

5

Approx. 54 – 66

August 2012

2012 Pathfinder

LAN

ABS BRANCH LINE CIRCUIT

LAN-87

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

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ABS BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000007355010

1.

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the terminals and connectors of the ABS actuator and electric unit (control unit) for damage, bend

and loose connection (unit side and connector side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of ABS actuator and electric unit (control unit).

2. Check the resistance between the ABS actuator and electric unit (control unit) harness connector termi-

nals.

-

VQ engine models

-

VK engine models

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the ABS actuator and electric unit (control unit) branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the ABS actuator and electric unit (control unit). Refer to the

following.

• VQ40DE: 

BRC-40, "Diagnosis Procedure"

• VK56DE: 

BRC-150, "Diagnosis Procedure"

Is the inspection result normal?

YES (Present error)>>Replace the ABS actuator and electric unit (control unit). Refer to the following.

• VQ40DE: 

BRC-112, "Removal and Installation"

• VK56DE: 

BRC-231, "Removal and Installation"

YES (Past error)>>Error was detected in the ABS actuator and electric unit (control unit) branch line.

NO

>> Repair the power supply and the ground circuit.

ABS actuator and electric unit (control unit) harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

E125

12

13

Approx. 54 – 66

ABS actuator and electric unit (control unit) harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

E127

11

15

Approx. 54 – 66

August 2012

2012 Pathfinder

LAN-88

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

IPDM-E BRANCH LINE CIRCUIT

IPDM-E BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000007355011

1.

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the terminals and connectors of the IPDM E/R for damage, bend and loose connection (unit side

and connector side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of IPDM E/R.

2. Check the resistance between the IPDM E/R harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the IPDM E/R branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the IPDM E/R. Refer to 

PCS-14, "Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the IPDM E/R. Refer to 

PCS-29, "Removal and Installation of IPDM E/R"

.

YES (Past error)>>Error was detected in the IPDM E/R branch line.

NO

>> Repair the power supply and the ground circuit.

IPDM E/R harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

E122

39

40

Approx. 108 – 132

August 2012

2012 Pathfinder

LAN

CAN COMMUNICATION CIRCUIT

LAN-89

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

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CAN COMMUNICATION CIRCUIT

Diagnosis Procedure

INFOID:0000000007355012

1.

CONNECTOR INSPECTION

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect all the unit connectors on CAN communication system.

4. Check terminals and connectors for damage, bend and loose connection.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the data link connector terminals.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check the harness and repair the root cause.

3.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the data link connector and the ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Check the harness and repair the root cause.

4.

CHECK ECM AND IPDM E/R TERMINATION CIRCUIT

1. Remove the ECM and the IPDM E/R.

2. Check the resistance between the ECM terminals.

3. Check the resistance between the IPDM E/R terminals.

Is the measurement value within the specification?

YES

>> GO TO 5.

NO

>> Replace the ECM and/or the IPDM E/R.

5.

CHECK SYMPTOM

Connect all the connectors. Check if the symptoms described in the “Symptom (Results from interview with

customer)” are reproduced. 

Data link connector

Continuity

Connector No.

Terminal No.

M22

6

14

Not existed

Data link connector

Ground

Continuity

Connector No.

Terminal No.

M22

6

Not existed

14

Not existed

ECM

Resistance (

Ω

)

Terminal No.

94

86

Approx. 108 – 132

IPDM E/R

Resistance (

Ω

)

Terminal No.

39

40

Approx. 108 – 132

LKIA0037E

August 2012

2012 Pathfinder

LAN-90

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

CAN COMMUNICATION CIRCUIT

Inspection result

Reproduced>>GO TO 6.

Non-reproduced>>Start the diagnosis again. Follow the trouble diagnosis procedure when past error is

detected.

6.

CHECK UNIT REPRODUCTION

Perform the reproduction test as per the following procedure for each unit.

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect one of the unit connectors of CAN communication system.

NOTE:

ECM and IPDM E/R have a termination circuit. Check other units first.

4. Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom

(Results from interview with customer)” are reproduced. 

NOTE:

Although unit-related error symptoms occur, do not confuse them with other symptoms. 

Inspection result

Reproduced>>Connect the connector. Check other units as per the above procedure.

Non-reproduced>>Replace the unit whose connector was disconnected.

August 2012

2012 Pathfinder

LU-1

ENGINE

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SECTION 

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LU

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CONTENTS

ENGINE LUBRICATION SYSTEM

VQ40DE

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

3

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

3

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

3

Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .....................................

3

Precaution for Liquid Gasket .....................................

4

PREPARATION ............................................

5

PREPARATION ...................................................

5

Special Service Tool  .................................................

5

Commercial Service Tool  ..........................................

5

SYSTEM DESCRIPTION  ..............................

7

LUBRICATION SYSTEM  ....................................

7

Lubrication Circuit  .....................................................

7

System Chart  ............................................................

7

PERIODIC MAINTENANCE ..........................

8

ENGINE OIL  ........................................................

8

Inspection ..................................................................

8

Changing Engine Oil  .................................................

9

OIL FILTER  ........................................................

11

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

11

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

12

OIL COOLER ......................................................

12

Exploded View  ........................................................

12

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

12

OIL PUMP ...........................................................

15

Exploded View  ........................................................

15

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

15

UNIT DISASSEMBLY AND ASSEMBLY  ....

17

OIL PUMP  .........................................................

17

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

17

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

19

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

19

Standard and Limit  ..................................................

19

VK56DE

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

20

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

20

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

20

Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect  ...................................

20

Precaution for Liquid Gasket  ...................................

21

PREPARATION ...........................................

22

PREPARATION .................................................

22

Special Service Tool ................................................

22

Commercial Service Tool  ........................................

22

SYSTEM DESCRIPTION  .............................

24

LUBRICATION SYSTEM  ..................................

24

Lubrication Circuit ....................................................

24

System Chart ...........................................................

25

PERIODIC MAINTENANCE  ........................

26

ENGINE OIL  ......................................................

26

Inspection ................................................................

26

Changing Engine Oil ................................................

27

OIL FILTER  .......................................................

29

August 2012

2012 Pathfinder