Nissan Pathfinder (2009 year). Manual — part 501
LAN-94
< COMPONENT DIAGNOSIS >
[CAN]
CAN COMMUNICATION CIRCUIT
CAN COMMUNICATION CIRCUIT
Diagnosis Procedure
INFOID:0000000003938770
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
2009 Pathfinder
LAN
CAN COMMUNICATION CIRCUIT
LAN-95
< COMPONENT DIAGNOSIS >
[CAN]
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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.
2009 Pathfinder
LU-1
ENGINE
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SECTION
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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 . . . . . . . . . . ..
FUNCTION DIAGNOSIS . . . . . . . ...
LUBRICATION SYSTEM . . . . . . . . .
Lubrication Circuit . . . . . . . . . . . . .....
System Chart . . . . . . . . . . . . . . ....
ON-VEHICLE MAINTENANCE . . . . . .
ENGINE OIL . . . . . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . . ..
Changing Engine Oil . . . . . . . . . . . .....
OIL FILTER . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
ON-VEHICLE REPAIR . . . . . . . . .
OIL COOLER . . . . . . . . . . . . . ..
Exploded View . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
OIL PUMP . . . . . . . . . . . . . . ...
Exploded View . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
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 . . . . . . . . . .
FUNCTION DIAGNOSIS . . . . . . . ..
LUBRICATION SYSTEM . . . . . . . . ..
Lubrication Circuit . . . . . . . . . . . . .
System Chart . . . . . . . . . . . . . . ...
ON-VEHICLE MAINTENANCE . . . . .
ENGINE OIL . . . . . . . . . . . . . ..
Inspection . . . . . . . . . . . . . . . .
Changing Engine Oil . . . . . . . . . . . .
OIL FILTER . . . . . . . . . . . . . ...
2009 Pathfinder
LU-2
Removal and Installation . . . . . . . . . ....
ON-VEHICLE REPAIR . . . . . . . .
OIL COOLER . . . . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . ....
Removal and Installation . . . . . . . . . ....
OIL PUMP . . . . . . . . . . . . . . ..
Exploded View . . . . . . . . . . . . . ....
Removal and Installation . . . . . . . . . ....
DISASSEMBLY AND ASSEMBLY . . .
OIL PUMP . . . . . . . . . . . . . . ..
Disassembly and Assembly . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . ..
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . . .
Standard and Limit . . . . . . . . . . . . ..
2009 Pathfinder
PRECAUTIONS
LU-3
< PRECAUTION >
[VQ40DE]
C
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LU
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003939425
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 SR and SB section of this Service Man-
ual.
WARNING:
• 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 performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• 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 har-
ness connectors.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000004448919
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″
LOCK
″
position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1.
Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2.
Use the Intelligent Key or mechanical key to turn the ignition switch to the
″
ACC
″
position. At this time, the
steering lock will be released.
3.
Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4.
Perform the necessary repair operation.
5.
When the repair work is completed, return the ignition switch to the
″
LOCK
″
position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6.
Perform a self-diagnosis check of all control units using CONSULT-III.
Precaution for Liquid Gasket
INFOID:0000000003939426
REMOVAL OF LIQUID GASKET SEALING
2009 Pathfinder
LU-4
< PRECAUTION >
[VQ40DE]
PRECAUTIONS
• After removing the bolts and nuts, separate the mating surface and
remove the old liquid gasket sealing using Tool.
CAUTION:
Do not damage the mating surfaces.
• Tap (1) the Tool to insert it.
• In areas where the Tool is difficult to use, lightly tap to slide (2) it.
LIQUID GASKET APPLICATION PROCEDURE
1.
Remove the old liquid gasket adhering to the gasket application
surface and the mating surface using suitable tool.
• Remove the liquid gasket completely from the groove of the
liquid gasket application surface, bolts, and bolt holes.
2.
Thoroughly clean the mating surfaces and remove adhering
moisture, grease and foreign material.
3.
Attach the liquid gasket tube to the Tool.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-26, "Recommended Chemical Products and Sealants"
.
4.
Apply the liquid gasket without breaks to the specified location
with the specified dimensions.
• If there is a groove for the liquid gasket application, apply the
liquid gasket to the groove.
• As for the bolt holes, normally apply the liquid gasket inside
the holes. If specified in the procedure, it should also be
applied outside the holes.
• Within five minutes of liquid gasket application, install the mat-
ing component.
• If the liquid gasket protrudes, wipe it off immediately.
• Do not retighten after the installation.
• Wait 30 minutes or more after installation before refilling the
engine with engine oil and engine coolant.
CAUTION:
If there are specific instructions in this manual, observe them.
Tool number
: KV10111100 (J-37228)
WBIA0566E
PBIC0003E
Tool number
: WS39930000 (
—
)
WBIA0567E
SEM159F
2009 Pathfinder
PREPARATION
LU-5
< PREPARATION >
[VQ40DE]
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PREPARATION
PREPARATION
Special Service Tool
INFOID:0000000003939427
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tool
INFOID:0000000003939428
Tool number
(Kent-Moore No.)
Tool name
Description
ST25051001
(J-25695-1)
Oil pressure gauge
Measuring oil pressure
Maximum measuring range:
2,452 kPa (25 kg/cm
2
, 356 psi)
ST25052000
(J-25695-2)
Hose
Adapting oil pressure gauge to cylinder block
KV10111100
(J-37228)
Seal cutter
Removing steel oil pan and rear timing chain
case
KV10115801
(J-38956)
Oil filter wrench
Removing and installing oil filter
a: 64.3 mm (2.531 in)
WS39930000
(
—
)
Tube presser
Pressing the tube of liquid gasket
S-NT050
S-NT559
NT046
S-NT375
S-NT052
2009 Pathfinder
LU-6
< PREPARATION >
[VQ40DE]
PREPARATION
Tool name
Description
Power tool
Loosening nuts and bolts
Deep socket
Removing and installing oil pressure switch
a: 24 mm (0.94 in)
PBIC0190E
PBIC2072E
2009 Pathfinder
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