Nissan Pathfinder (2012 year). Instruction — part 563
SRC-84
< SYMPTOM DIAGNOSIS >
SRS AIR BAG SYSTEM
SYMPTOM DIAGNOSIS
SRS AIR BAG SYSTEM
"AIR BAG" Warning Lamp Does Not Turn Off
INFOID:0000000007356561
DIAGNOSTIC PROCEDURE 7
1.
CHECK CONDITION OF AIR BAG MODULE
Inspect for any deployed air bag modules or seat belt pre-tensioners.
Are any air bag modules or seat belt pre-tensioners deployed?
YES
>> Refer to
SR-19, "For Frontal Collision"
or
SR-21, "For Side and Rollover Collision"
NO
>> GO TO 2
2.
CHECK THE AIR BAG FUSE
Check 10A fuse [No. 13, located in the fuse block (J/B)].
Is the fuse blown?
YES
>> GO TO 3
NO
>> GO TO 4
3.
CHECK AIR BAG FUSE AGAIN
Replace 10A fuse [No. 13, located in the fuse block (J/B)] and turn ignition switch ON.
Does the fuse blow again?
YES
>> Replace harness.
NO
>> Inspection End.
4.
CHECK AIR BAG DIAGNOSIS SENSOR UNIT
Connect CONSULT.
Is “AIR BAG” displayed on CONSULT?
YES
>> GO TO 5
NO
>> Visually inspect the air bag diagnosis sensor unit harness connections. If the connections are OK,
replace the air bag diagnosis sensor unit. Refer to
SR-16, "Removal and Installation"
.
5.
CHECK HARNESS CONNECTION
Check for loose connections between the combination meter and the air bag diagnosis sensor unit.
Are there any loose connections?
YES
>> Properly connect the combination meter and air bag diagnosis sensor unit harness connectors. If
“AIR BAG” warning lamp still does not turn off, replace the wiring harness.
NO
>> Replace air bag diagnosis sensor unit.
"AIR BAG" Warning Lamp Does Not Turn On
INFOID:0000000007356562
DIAGNOSTIC PROCEDURE 8
1.
CHECK METER FUSE
Check the 10A fuse [No. 14, located in the fuse block (J/B)] .
Is the fuse blown?
YES
>> GO TO 2
NO
>> GO TO 3
2.
REPLACE METER FUSE AND CHECK AGAIN
Replace 10A fuse [No. 14, located in the fuse block (J/B)] and turn ignition switch ON.
Does the fuse blow again?
YES
>> Replace harness.
NO
>> Inspection End.
3.
CHECK HARNESS CONNECTIONS BETWEEN AIR BAG DIAGNOSIS SENSOR UNIT AND COMBINA-
August 2012
2012 Pathfinder
SRS AIR BAG SYSTEM
SRC-85
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TION METER
Inspect the harness and connectors between the air bag diagnosis sensor unit and the combination meter.
Do the harness or connectors have any visible damage?
YES
>> Replace harness.
NO
>> GO TO 4
4.
CHECK COMBINATION METER
Disconnect the air bag diagnosis sensor unit harness connectors and turn ignition switch ON.
Does “AIR BAG” warning lamp turn on?
YES
>> Replace the air bag diagnosis sensor unit. Refer to
SR-16, "Removal and Installation"
NO
>> Replace the combination meter. Refer to
MWI-89, "Removal and Installation"
.
August 2012
2012 Pathfinder
SRC-86
< SYMPTOM DIAGNOSIS >
PASSENGER SEAT BELT WARNING SYSTEM
PASSENGER SEAT BELT WARNING SYSTEM
Seat Belt Warning System Does Not Function
INFOID:0000000007356563
1.
SEAT BELT WARNING LIGHT
Turn ignition switch ON.
Does the seat belt warning lamp come ON?
YES
>> GO TO 2
NO
>> • Check 10A fuse [No. 14, located in the fuse block (J/B)].
• Check seat belt buckle switch LH.
• Check harness between combination meter and seat belt buckle switch LH.
• Check combination meter. Refer to
.
2.
SEAT BELT BUCKLE LH
Fasten the seat belt buckle LH.
Does the seat belt warning lamp go OFF?
YES
>> GO TO 3
NO
>> • Check seat belt buckle switch LH.
• Check harness between combination meter and seat belt buckle switch LH.
3.
OCCUPANT CLASSIFICATION SYSTEM
Have a helper sit in the passenger seat.
Does the seat belt warning lamp go ON?
YES
>> GO TO 4
NO
>> • Check occupant classification system. Refer to
SRC-10, "Occupant Classification System
.
• Check harness between occupant classification control unit and air bag diagnosis sensor unit.
4.
SEAT BELT BUCKLE RH
Fasten the seat belt buckle RH.
Does the seat belt warning lamp go OFF?
YES
>> System OK.
NO
>> • Check seat belt buckle switch RH.
• Check harness between seat belt buckle switch RH and air bag diagnosis sensor unit.
• Replace air bag diagnosis sensor unit. Refer to
SR-16, "Removal and Installation"
.
August 2012
2012 Pathfinder
PRECAUTIONS
SRC-87
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000007829414
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 for SRS "AIR BAG" and "SEAT BELT PRE-TENSIONER" Service
INFOID:0000000007356565
• Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Instruction.
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-
tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have
passed.
• The air bag diagnosis sensor unit must always be installed with the arrow mark “
⇐
” pointing toward the front
of the vehicle for proper operation. Also check air bag diagnosis sensor unit for cracks, deformities or rust
before installation and replace as required.
• The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or column after removal of steering gear.
• Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad side
facing upward and seat mounted front side air bag module standing with the stud bolt side facing down.
• Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
• After air bag inflates, the front instrument panel assembly should be replaced if damaged.
Occupant Classification System Precaution
INFOID:0000000007356566
Replace occupant classification system control unit and passenger front seat cushion as an assembly.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000007356567
NOTE:
August 2012
2012 Pathfinder
SRC-88
< PRECAUTION >
PRECAUTIONS
• 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 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.
August 2012
2012 Pathfinder
ST-1
STEERING
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CONTENTS
STEERING SYSTEM
PRECAUTION . . . . . . . . . . . ...
PRECAUTIONS . . . . . . . . . . . . ...
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect . . . . . . . . .....
PREPARATION . . . . . . . . . . .
PREPARATION . . . . . . . . . . . . ...
Special Service Tool . . . . . . . . . . . .....
Commercial Service Tool . . . . . . . . . . ..
SYSTEM DESCRIPTION . . . . . . . ..
HEATED STEERING WHEEL . . . . . . . .
System Diagram . . . . . . . . . . . . . ....
System Description . . . . . . . . . . . . ...
Component Parts Location . . . . . . . . . ....
Component Description . . . . . . . . . . .....
WIRING DIAGRAM . . . . . . . . . ...
HEATED STEERING WHEEL . . . . . . . .
Wiring Diagram . . . . . . . . . . . . . .....
SYMPTOM DIAGNOSIS . . . . . . . ..
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING . . . . . . .
NVH Troubleshooting Chart . . . . . . . . .
PERIODIC MAINTENANCE . . . . . . .
POWER STEERING FLUID . . . . . . . ...
Checking Fluid Level . . . . . . . . . . . ...
Checking Fluid Leakage . . . . . . . . . . ..
Air Bleeding Hydraulic System . . . . . . . .
STEERING WHEEL . . . . . . . . . . .
On-Vehicle Inspection and Service . . . . . . .
POWER STEERING OIL PUMP . . . . . ...
On-Vehicle Inspection and Service . . . . . . .
REMOVAL AND INSTALLATION . . . ...
STEERING COLUMN . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
STEERING WHEEL . . . . . . . . . . ..
Removal and Installation . . . . . . . . . . .
POWER STEERING GEAR AND LINKAGE .
Removal and Installation . . . . . . . . . . .
POWER STEERING OIL PUMP . . . . . ...
Removal and Installation . . . . . . . . . . .
HYDRAULIC LINE . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
UNIT DISASSEMBLY AND ASSEMBLY .
STEERING COLUMN . . . . . . . . . .
Disassembly and Assembly . . . . . . . . . .
POWER STEERING OIL PUMP . . . . . ...
Disassembly and Assembly . . . . . . . . . .
STEERING GEAR AND LINKAGE . . . . ...
Disassembly and Assembly . . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . . .
Steering Wheel . . . . . . . . . . . . . .
Steering Column . . . . . . . . . . . . . ..
Steering Gear . . . . . . . . . . . . . . ..
Oil Pump . . . . . . . . . . . . . . . . ..
Steering Fluid . . . . . . . . . . . . . . ..
August 2012
2012 Pathfinder
2012 Pathfinder
ST-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000007356568
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 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:0000000007356569
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 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.
August 2012
2012 Pathfinder
2012 Pathfinder
PRECAUTIONS
ST-3
< PRECAUTION >
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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.
August 2012
2012 Pathfinder
2012 Pathfinder
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