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
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]
C
D
E
F
G
H
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J
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B
A
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P
N
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
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]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
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:
• 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
.
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]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
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
C
D
E
F
G
H
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J
K
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M
SECTION
LU
A
LU
N
O
P
CONTENTS
ENGINE LUBRICATION SYSTEM
VQ40DE
PRECAUTION . . . . . . . . . . . ...
PRECAUTIONS . . . . . . . . . . . . ...
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect . . . . . . . . .....
Precaution for Liquid Gasket . . . . . . . . .....
PREPARATION . . . . . . . . . . .
PREPARATION . . . . . . . . . . . . ...
Special Service Tool . . . . . . . . . . . .....
Commercial Service Tool . . . . . . . . . . ..
SYSTEM DESCRIPTION . . . . . . . ..
LUBRICATION SYSTEM . . . . . . . . .
Lubrication Circuit . . . . . . . . . . . . .....
System Chart . . . . . . . . . . . . . . ....
PERIODIC MAINTENANCE . . . . . . ..
ENGINE OIL . . . . . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . . ..
Changing Engine Oil . . . . . . . . . . . .....
OIL FILTER . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
REMOVAL AND INSTALLATION . . . ...
OIL COOLER . . . . . . . . . . . . . ..
Exploded View . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
OIL PUMP . . . . . . . . . . . . . . ...
Exploded View . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
UNIT DISASSEMBLY AND ASSEMBLY .
OIL PUMP . . . . . . . . . . . . . . .
Disassembly and Assembly . . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . . .
Standard and Limit . . . . . . . . . . . . ..
VK56DE
PRECAUTION . . . . . . . . . . . ..
PRECAUTIONS . . . . . . . . . . . . .
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect . . . . . . . . ...
Precaution for Liquid Gasket . . . . . . . . ...
PREPARATION . . . . . . . . . . ...
PREPARATION . . . . . . . . . . . . .
Special Service Tool . . . . . . . . . . . .
Commercial Service Tool . . . . . . . . . .
SYSTEM DESCRIPTION . . . . . . . .
LUBRICATION SYSTEM . . . . . . . . ..
Lubrication Circuit . . . . . . . . . . . . .
System Chart . . . . . . . . . . . . . . ...
PERIODIC MAINTENANCE . . . . . .
ENGINE OIL . . . . . . . . . . . . . ..
Inspection . . . . . . . . . . . . . . . .
Changing Engine Oil . . . . . . . . . . . .
OIL FILTER . . . . . . . . . . . . . ...
August 2012
2012 Pathfinder
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