Nissan Pathfinder (2011 year). Manual — part 120
PRECAUTIONS
BRC-225
< PRECAUTION >
[TYPE 2]
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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-III.
Precaution for Brake System
INFOID:0000000006246140
CAUTION:
• Refer to
MA-18, "FOR USA AND CANADA : Fluids and Lubricants"
20, "FOR MEXICO : Fluids and Lubricants"
(Mexico) for recommended brake fluid.
• Never reuse drained brake fluid.
• Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
• To clean or wash all parts of master cylinder and disc brake caliper, use clean brake fluid.
• Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic sys-
tem.
• Use flare nut wrench when removing and installing brake
tube.
• If a brake fluid leak is found, the part must be disassembled
without fail. Then it has to be replaced with a new one if a
defect exists.
• Turn the ignition switch OFF and remove the connector of the
ABS actuator and electric unit (control unit) or the battery ter-
minal before performing the work.
• Always torque brake lines when installing.
• Burnish the brake contact surfaces after refinishing or replac-
ing rotors, after replacing pads, or if a soft pedal occurs at
very low mileage.
Refer to
(front disc brake) or
WARNING:
• Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
Precaution for Brake Control
INFOID:0000000006246141
• During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
• Just after starting vehicle, the brake pedal may vibrate or a motor operating noise may be heard from engine
compartment. This is a normal status of operation check.
• Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
• When an error is indicated by ABS or another warning lamp, collect all necessary information from customer
(what symptoms are present under what conditions) and check for simple causes before starting diagnosis.
Besides electrical system inspection, check brake booster operation, brake fluid level, and fluid leaks.
• If incorrect tire sizes or types are installed on the vehicle or brake pads are not Genuine NISSAN parts, stop-
ping distance or steering stability may deteriorate.
• If there is a radio, antenna or related wiring near control module, ABS function may have a malfunction or
error.
• If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits or improper wiring.
• If the following components are replaced with non-genuine components or modified, the VDC OFF indicator
lamp and SLIP indicator lamp may turn on or the VDC system may not operate properly. Components
related to suspension (shock absorbers, struts, springs, bushings, etc.), tires, wheels (exclude specified
size), components related to brake system (pads, rotors, calipers, etc.), components related to engine (muf-
fler, ECM, etc.), components related to body reinforcement (roll bar, tower bar, etc.).
• Driving with broken or excessively worn suspension components, tires or brake system components may
cause the VDC OFF indicator lamp and the SLIP indicator lamp to turn on, and the VDC system may not
operate properly.
• When the TCS or VDC is activated by sudden acceleration or sudden turn, some noise may occur. The
noise is a result of the normal operation of the TCS and VDC.
• When driving on roads which have extreme slopes (such as mountainous roads) or high banks (such as
sharp curves on a freeway), the VDC may not operate normally, or the VDC warning lamp and the SLIP indi-
cator lamp may turn on. This is not a problem if normal operation can be resumed after restarting the engine.
SBR686C
2011 Pathfinder
BRC-226
< PRECAUTION >
[TYPE 2]
PRECAUTIONS
• Sudden turns (such as spin turns, acceleration turns), drifting, etc. with VDC turned off may cause the yaw
rate/side/decel G sensor to indicate a problem. This is not a problem if normal operation can be resumed
after restarting the engine.
• If battery is removed or steering angle sensor is disconnected, power to steering angle sensor is lost and the
screen goes into steering angle sensor safe mode.
• When screen goes into steering angle sensor safe mode, perform "Adjustment of Steering Angle Sensor
Neutral Position" with CONSUT-III and check that VDC OFF indicator turns off. Additionally, perform self-
diagnosis, check that only "Steering Angle Sensor Safe Mode" is shown for self-diagnostic result, and then
delete the memory. (If the self-diagnostic result shows an indication other than "Steering Angle Sensor Safe
Mode", repair the relevant part and restart self-diagnosis.) The steering angle sensor is released and returns
to normal condition by performing the above operation.
• When checking, if only "Steering Angle Sensor Safe Mode" is shown in the self-diagnostic result and VDC
OFF indicator is off, delete history of malfunction. This happens when battery power supply is lost and the
screen goes into Steering Angle Sensor Safe Mode, and then screen returns to normal mode automatically
by driving the vehicle in a straight forward direction [for approximately 30 seconds at 20 km/h (12 MPH) or
more] after power is supplied again.
NOTE:
VDC OFF indicator lamp is on when VDC OFF switch is on.
Precaution for CAN System
INFOID:0000000006246142
• Do not apply voltage of 7.0V or higher to terminal to be measured.
• Maximum open terminal voltage of tester in use must be less than 7.0V.
• Before checking harnesses, turn ignition switch OFF and disconnect battery negative cable.
• Area to be repaired must be soldered and wrapped with tape.
Make sure that fraying of twisted wire is within 110 mm (4.33 in).
• Do not make a bypass connection to repaired area. (If the circuit is
bypassed, characteristics of twisted wire will be lost.)
PKIA0306E
PKIA0307E
2011 Pathfinder
PREPARATION
BRC-227
< PREPARATION >
[TYPE 2]
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PREPARATION
PREPARATION
Special Service Tool
INFOID:0000000006246143
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
KV991J0080
(J-45741)
ABS active wheel sensor tester
Checking operation of ABS active wheel sen-
sors
ST30031000
(
—
)
Bearing puller
Removing sensor rotor
ST30720000
(J-25405)
Drift
Installing rear sensor rotor
a: 77 mm (0.03 in) diameter
b: 55 mm (2.17 in) diameter
ST27863000
(
—
)
Drift
Installing rear sensor rotor
a: 75 mm (2.95 in) diameter
b: 62 mm (2.44 in) diameter
KV40104710
(
—
)
Drift
Installing rear sensor rotor
a: 76 mm (2.99 in) diameter
b: 68.5 mm (2.697 in) diameter
WFIA0101E
ZZA0700D
ZZA0701D
ZZA0832D
ZZA0832D
2011 Pathfinder
BRC-228
< PREPARATION >
[TYPE 2]
PREPARATION
Commercial Service Tool
INFOID:0000000006246144
Tool name
Description
1. Flare nut crowfoot
2. Torque wrench
Removing and installing brake piping
a: 10 mm (0.39 in)/12 mm (0.47 in)
Power tool
Removing nuts, bolts and screws
S-NT360
PIIB1407E
2011 Pathfinder
WHEEL SENSORS
BRC-229
< UNIT REMOVAL AND INSTALLATION >
[TYPE 2]
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UNIT REMOVAL AND INSTALLATION
WHEEL SENSORS
Removal and Installation
INFOID:0000000006246145
REMOVAL
1. When removing the front wheel sensor, remove the disc rotor to gain access to the front wheel sensor
bolt. Refer to
BR-43, "Removal and Installation of Brake Caliper and Disc Rotor"
.
2. When removing the rear wheel sensor, remove the spare tire.
3. Remove the wheel sensor bolt.
4. Pull the wheel sensor out, being careful to turn it as little as possible.
CAUTION:
• Be careful not to damage wheel sensor edge or the sensor rotor teeth.
• Do not pull on the wheel sensor harness.
5. Disconnect the wheel sensor harness connector, then remove the wheel sensor harness from the mounts
and remove the wheel sensor.
• When removing the rear wheel sensor, both sensors must be removed as they are on the same har-
ness.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Inspect wheel sensor O-ring, replace wheel sensor if damaged.
• Before installing the wheel sensor, make sure no foreign materials (such as iron fragments) are
adhered to the pick-up part of the wheel sensor, to the inside of the wheel sensor hole or on the sen-
sor rotor in the wheel hub assembly.
• Clean wheel sensor hole and mating surface with brake cleaner and a lint-free shop rag. Be careful
that dirt and debris do not enter the axle or wheel hub assembly.
NOTE:
Apply a coat of suitable grease to the wheel sensor O-ring and mating hole.
1.
Front wheel sensor LH
2.
Rear wheel sensor RH
AWFIA0786GB
2011 Pathfinder
BRC-230
< UNIT REMOVAL AND INSTALLATION >
[TYPE 2]
SENSOR ROTOR
SENSOR ROTOR
Removal and Installation
INFOID:0000000006246146
FRONT WHEEL SENSOR ROTOR
The front wheel sensor rotors are built into the front wheel hub and bearing assemblies and are not remov-
able. If damaged, replace the front wheel hub and bearing assembly. Refer to
FAX-10, "Removal and Installa-
.
REAR WHEEL SENSOR ROTOR
Removal
1. Remove the side flange from the final drive assembly. Refer to
DLN-460, "Removal and Installation"
.
CAUTION:
Discard side oil seal.
2. Remove the sensor rotor from the side flange, using suitable tool with Tool.
Installation
1. Install the new sensor rotor on the side flange using Tools and a
suitable press as shown. Make sure the sensor rotor is fully
seated on the side flange.
CAUTION:
Do not reuse the old sensor rotor.
2. Install the side flange on the final drive assembly. Refer to
DLN-460, "Removal and Installation"
CAUTION:
Do not reuse the side oil seal. The side oil seal must be replaced every time the side flange is
removed from the final drive assembly.
Tool number
: ST30031000 ( — )
Tool numbers
A: ST30720000 (J-25405)
B: ST27863000 ( — )
C: KV40104710 ( — )
WFIA0334E
2011 Pathfinder
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
BRC-231
< UNIT REMOVAL AND INSTALLATION >
[TYPE 2]
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ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
Removal and Installation
INFOID:0000000006246147
REMOVAL
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
1. Disconnect the battery negative terminal. Refer to
PG-76, "Removal and Installation"
2. Remove air cleaner assembly. Refer to
EM-165, "Removal and Installation"
.
3. Disconnect the actuator harness from the ABS actuator and electric unit (control unit).
4. Disconnect the brake tubes.
CAUTION:
• To remove the brake tubes, use a flare nut wrench to prevent the flare nuts and brake tubes from
being damaged.
• Be careful not to splash brake fluid on painted areas.
5. Remove the three bolts and remove the ABS actuator and electric unit (control unit) and bracket.
6. Remove the bracket from the ABS actuator and electric unit (control unit).
INSTALLATION
Installation is in the reverse order of removal.
1.
To rear left disc brake
13.0 N·m (1.3 kg-m, 10 ft-lb)
2.
To rear right disc brake
13.0 N·m (1.3 kg-m, 10 ft-lb)
3.
To front left disc brake
13.0 N·m (1.3 kg-m, 10 ft-lb)
4.
To front right disc brake
13.0 N·m (1.3 kg-m, 10 ft-lb)
5.
From master cylinder secondary side
18.2 N·m (1.9 kg-m, 13 ft-lb)
6.
From master cylinder primary side
18.2 N·m (1.9 kg-m, 13 ft-lb)
7.
ABS actuator and electric unit
(control unit)
8.
Harness connector
WFIA0375E
2011 Pathfinder
BRC-232
< UNIT REMOVAL AND INSTALLATION >
[TYPE 2]
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
• If the ABS actuator and electric unit (control unit) is replaced, the neutral position of the steering angle sen-
sor position must be reset. Refer to
BRC-122, "CALIBRATION OF DECEL G SENSOR : Special Repair
.
CAUTION:
• To tighten the brake tube flare nuts use a suitable tool (flare nut wrench).
• Always tighten the brake tube flare nuts to specification when installing.
• Never reuse the drained brake fluid.
• After installation of the ABS actuator and electric unit (control unit), refill the brake system with new
brake fluid. Then bleed the air from the brake system. Refer to
BR-20, "Bleeding Brake System"
.
• If the ABS actuator and electronic unit (control unit) is replaced, the neutral position of the steering
angle sensor must be reset. Refer to
BRC-122, "CALIBRATION OF DECEL G SENSOR : Special
.
2011 Pathfinder
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