Nissan Pathfinder (2011 year). Instruction — part 129
PRECAUTIONS
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006635750
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
Instruction. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000006247843
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.
2011 Pathfinder
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PRECAUTIONS
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
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REMOVAL OF LIQUID GASKET SEALANT
• After removing nuts and bolts, separate the mating surface and
remove old liquid gasket sealant using Tool.
CAUTION:
Be careful not to damage the mating surfaces.
• Tap seal cutter to insert it (1), and then slide it by tapping on the
side (2) as shown.
• In areas where Tool is difficult to use, use plastic hammer to lightly
tap the part, to remove it.
CAUTION:
If for some unavoidable reason tool such as screwdriver is
used, be careful not to damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Remove the old liquid gasket adhering to the gasket application
surface and the mating surface using suitable tool.
• Remove liquid gasket completely from the groove of the gas-
ket application surface, bolts, and bolt holes.
2. Thoroughly clean the mating surfaces and remove adhering
moisture, grease and foreign materials.
3. Attach liquid gasket tube to the Tool.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-14, "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 bolt holes, normally apply the liquid gasket inside the
holes. Occasionally, it should be applied outside the holes.
Make sure to read the text of this instruction.
• Within five minutes of liquid gasket application, install the mat-
ing component.
• If the liquid gasket protrudes, wipe it off immediately.
• Do not retighten nuts or bolts 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 instruction, observe them.
Tool number
: KV10111100 (J-37228)
WBIA0566E
PBIC0003E
Tool number
: WS39930000 (
—
)
WBIA0567E
SEM159F
2011 Pathfinder
PREPARATION
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PREPARATION
PREPARATION
Special Service Tool
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The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
KV10111100
(J-37228)
Seal cutter
Removing chain tensioner cover and water
pump cover
WS39930000
( — )
Tube presser
Pressing the tube of liquid gasket
EG17650301
(J-33984-A)
Radiator cap tester adapter
Adapting radiator cap tester to radiator cap
and radiator filler neck
a: 28 (1.10) diameter
b: 31.4 (1.236) diameter
c: 41.3 (1.626) diameter
Unit: mm (in)
KV991J0070
(J-45695)
Coolant refill tool
Filling cooling system
KV991J0010
(J-23688)
Engine coolant refractometer
Checking concentration of ethylene glycol in
engine coolant
—
(J-24460-92)
Radiator Pressure Test Adapter
Pressure testing of the pressurized cooling
system overflow tank
NT046
S-NT052
S-NT564
LMA053
WBIA0539E
AWBIA0891ZZ
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Commercial Service Tool
INFOID:0000000006247846
Tool name
Description
Power tool
Loosening bolts, screws and nuts.
Radiator cap tester
Checking radiator and radiator cap
PIIB1407E
PBIC1982E
2011 Pathfinder
COOLING SYSTEM
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SYSTEM DESCRIPTION
COOLING SYSTEM
Cooling Circuit
INFOID:0000000006247847
WBIA0641E
1.
Cylinder block (RH)
2.
Oil cooler
3.
Cylinder head (RH)
4.
Water pump
5.
Radiator
6.
Water inlet
7.
Thermostat
8.
Cylinder head (LH)
9.
Heater pump
10. Cylinder block (LH)
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COOLING SYSTEM
Schematic
INFOID:0000000006247848
WBIA0565E
2011 Pathfinder
OVERHEATING CAUSE ANALYSIS
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OVERHEATING CAUSE ANALYSIS
Troubleshooting Chart
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Symptom
Check items
Cooling sys-
tem parts
malfunction
Poor heat transfer
Water pump malfunction
Worn or loose drive belt
—
Coolant circulation
Thermostat
Damaged fins
Dust contamination or pa-
per clogging
Physical damage
Clogged radiator cooling
tube
Excess foreign material
(rust, dirt, sand, etc.)
Reduced air flow
Cooling fan does not oper-
ate
Fan assembly
—
High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud
—
Radiator shroud
—
Improper engine coolant
mixture ratio
—
Engine coolant viscosity
—
Poor engine coolant quality
—
—
Insufficient engine coolant
Engine coolant leaks
Cooling hose
Loose clamp
Cracked hose
Heater pump
Physical damage
Water pump
Poor sealing
Radiator or reservoir cap
Loose
Poor sealing
Radiator
O-ring for damage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank
Cracked reservoir tank
Overflowing reservoir tank
Exhaust gas leaks into cool-
ing system
Cylinder head deterioration
Cylinder head gasket deteri-
oration
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OVERHEATING CAUSE ANALYSIS
Except cool-
ing system
parts mal-
function
—
Overload on engine
Abusive driving
High engine rpm under no
load
Driving in low gear for ex-
tended time
Driving at extremely high
speed
Powertrain system malfunc-
tion
—
Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flow
Blocked bumper
Blocked air flow
—
Blocked radiator grille
Installed car brassiere
Mud contamination or paper
clogging
Blocked radiator
Blocked air flow
Blocked condenser
Installed large fog lamp
Symptom
Check items
2011 Pathfinder
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