Nissan Pathfinder (2012 year). Manual — part 91
FRONT DISC BRAKE
BR-55
< UNIT DISASSEMBLY AND ASSEMBLY >
C
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2. Apply rubber grease to the new piston seals (1) and insert the
new piston seals (1) into the groove on the cylinder body.
CAUTION:
Do not reuse piston seals.
3. Apply rubber grease to the new piston boots (1). Cover the pis-
ton end (2) with the piston boot (1), and then install the cylinder
side lip on the piston boot (1) securely into the groove on the cyl-
inder body.
CAUTION:
• Do not reuse piston boot.
• Press pistons in evenly and vary the pressing points to
prevent the cylinder inner wall from being damaged.
4. Install the pistons (1) into the cylinder body and insert the piston
boots (2) side lip into the piston groove as shown.
CAUTION:
Press pistons in evenly and vary the pressing points to pre-
vent the cylinder inner wall from being damaged.
5. Apply rubber grease to the sliding pin boots, then install the new upper sliding pin, lower sliding pin, and
sliding pin boots on the torque member.
CAUTION:
Upper sliding pin must be replaced at each service.
6. Install the cylinder body on the torque member. Refer to
BR-42, "Removal and Installation of Brake Cali-
.
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2012 Pathfinder
BR-56
< UNIT DISASSEMBLY AND ASSEMBLY >
REAR DISC BRAKE
REAR DISC BRAKE
Exploded View of Brake Caliper
INFOID:0000000007356640
Rear Disc Brake Caliper
WARNING:
Clean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of airborne
particles or other materials.
CAUTION:
• While removing caliper body never depress brake pedal because piston will pop out.
• It is not necessary to remove bolts on torque member and brake hose except for disassembly or
replacement of caliper body. In this case, hang caliper body with a wire so as not to stretch the brake
hose.
• Do not damage the piston boot.
• If any shim is subject to serious corrosion, replace it with a new one.
• Always replace shim and shim cover as a set when replacing brake pads.
• Keep rotor free from grease and brake fluid.
• Burnish the brake contact surface after refinishing or replacing rotors, after replacing pads, or if a
soft pedal occurs at very low mileage. Refer to
.
Disassembly and Assembly
INFOID:0000000007356641
DISASSEMBLY
1. Remove the cylinder body. Refer to
BR-47, "Removal and Installation of Brake Caliper and Disc Rotor"
.
2. Remove the sliding pins and boots from the torque member.
AWFIA0471GB
1.
Union bolt
2.
Brake hose
3.
Copper sealing washers
4.
Sliding pin bolt
5.
Cap
6.
Bleed valve
7.
Caliper body
8.
Sliding pin
9.
Piston seal
10. Piston
11. Piston boot
12. Torque member
13. Torque member bolt
14. Sliding pin boot
R.
Rubber grease
August 2012
2012 Pathfinder
REAR DISC BRAKE
BR-57
< UNIT DISASSEMBLY AND ASSEMBLY >
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3. Place a wooden block in the cylinder body and blow air into the
union bolt hole to remove the piston and piston boot as shown.
WARNING:
Do not get your fingers caught between the piston and
wooden block.
4. Remove the piston boot from the piston.
CAUTION:
Do not reuse piston boot.
5. Remove piston seal from cylinder body, using a suitable tool.
CAUTION:
Be careful not to damage cylinder body inner wall.
6. Remove the bleed valve and cap.
CALIPER INSPECTION
Cylinder Body
• Check inside surface of cylinder for score, rust wear, damage or foreign materials. If any of the above condi-
tions are observed, replace cylinder body.
• Minor damage from rust or foreign materials may be eliminated by polishing surface with a fine emery paper.
Replace cylinder body if necessary.
CAUTION:
• Use new brake fluid for cleaning. Do not use mineral oils such as gasoline or kerosene.
Torque Member
Check the torque member for wear, cracks, and damage. If damage or deformation is present, replace the
torque member.
Piston
Check the piston for score, rust, wear, damage or presence of foreign materials. Replace if any of the above
conditions are observed.
CAUTION:
Piston sliding surface is plated, do not polish with emery paper even if rust or foreign materials are
stuck to sliding surface.
Sliding Pin Bolts and Sliding Pin Boots
Check the sliding pins and sliding pin boots for wear, damage, and cracks. If damage or deformation is
present, replace the affected part.
ASSEMBLY
CAUTION:
Use NISSAN Rubber Grease when assembling.
1. Install the bleed valve and cap.
BRD0041D
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August 2012
2012 Pathfinder
BR-58
< UNIT DISASSEMBLY AND ASSEMBLY >
REAR DISC BRAKE
2. Apply rubber grease to the new piston seal (1) and insert the
new piston seal (1) into the groove on the cylinder body.
CAUTION:
Do not reuse piston seal.
3. Apply rubber grease to the new piston boot (1). Cover the piston
end (2) with the piston boot (1), and then install the cylinder side
lip on the piston boot (1) securely into the groove on the cylinder
body.
CAUTION:
• Do not reuse piston boot.
• Press pistons in evenly and vary the pressing points to
prevent the cylinder inner wall from being damaged.
4. Install the piston (1) into the cylinder body and insert the piston
boot (2) side lip into the piston groove as shown.
CAUTION:
Press pistons in evenly and vary the pressing points to pre-
vent the cylinder inner wall from being damaged.
5. Apply rubber grease to the sliding pin boots, then install the sliding pins and sliding pin boots on the torque
member.
6. Install the cylinder body on the torque member. Refer to
BR-47, "Removal and Installation of Brake Cali-
.
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August 2012
2012 Pathfinder
SERVICE DATA AND SPECIFICATIONS (SDS)
BR-59
< SERVICE DATA AND SPECIFICATIONS (SDS)
C
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G
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A
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BR
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General Specification
INFOID:0000000007356642
Unit: mm (in)
Brake Pedal
INFOID:0000000007356643
ADJUSTABLE PEDAL
Unit: mm (in)
Application
VQ40DE
VK56DE
Front brake
Brake model
CLZ33VB
Rotor outer diameter
×
thickness
296
×
28 (11.654
×
1.102)
320 x 28 (12.598 x 1.102)
Pad Length
×
width
×
thickness
140
×
50.5
×
10.0 (5.512
×
1.988
×
0.394)
130
×
52.3
×
11.0 (5.118
×
2.059
×
0.433)
Cylinder bore diameter (each)
46.4 (1.827)
45.0 (1.772)
Rear brake
Brake model
CLZ14VB
Rotor outer diameter
×
thickness
308
×
18 (12.126
×
0.709)
Pad Length
×
width
×
thickness
87.6
×
37.0
×
11.0 (3.449
×
1.457
×
0.433)
Cylinder bore diameter
38.1 (1.500)
Control valve
Valve model
Electric brake force distribution
Brake booster
Booster model
C215T
Diaphragm diameter
215 (8.465)
Recommended brake fluid
Refer to
MA-18, "FOR USA AND CANADA : Fluids and Lubricants"
(United
MA-20, "FOR MEXICO : Fluids and Lubricants"
(Mexico).
Pedal free height (H) with pedal in forward most position
182.1 (7.17)
Pedal full stroke (T)
153 (6.02)
Clearance between brake pedal bracket and threaded end of stop lamp switch and ASCD
cancel switch
0.74 - 1.96 (0.029 - 0.077)
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2012 Pathfinder
BR-60
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
CAUTION:
When equipped with adjustable pedal, the pedal must be in the forward most position (closest to the floor) for pedal height
adjustment.
STANDARD PEDAL
Unit: mm (in)
Brake Booster
INFOID:0000000007356644
Unit: mm (in)
Check Valve
INFOID:0000000007356645
Pedal free height (H)
182.1 (7.17)
Pedal full stroke (S)
153 (6.02)
Clearance between brake pedal bracket (C
1
) and threaded end of stop lamp switch and
ASCD cancel switch (C
2
)
0.74 - 1.96 (0.029 - 0.077)
AWFIA0433ZZ
Input rod installation length (B)
145 - 152 (5.71 - 5.98)
WFIA0382E
Vacuum leakage
[at vacuum of -66.7 kPa(-500 mmHg, -19.69 inHg)]
Within 1.3 kPa (10 mmHg, 0.39 inHg) of vacuum for 15 seconds
August 2012
2012 Pathfinder
SERVICE DATA AND SPECIFICATIONS (SDS)
BR-61
< SERVICE DATA AND SPECIFICATIONS (SDS)
C
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Front Disc Brake
INFOID:0000000007356646
Unit: mm (in)
Rear Disc Brake
INFOID:0000000007356647
Unit: mm (in)
Brake model
CLZ33VB
Application
VQ40DE
VQ56DE
Brake pad
Standard thickness (new)
10.0 (0.394)
11.0 (0.043)
Minimum thickness
2.0 (0.079)
Disc rotor
Standard thickness (new)
28.0 (1.102)
Minimum thickness
26.0 (1.024)
Maximum uneven wear (measured at 8 positions)
0.015 (0.0006)
Runout limit (with it attached to the vehicle)
0.05 (0.0020)
Brake model
CLZ14VB
Brake pad
Standard thickness (new)
11.0 (0.433)
Minimum thickness
2.0 (0.079)
Disc rotor
Standard thickness (new)
18.0 (0.709)
Minimum thickness
16.0 (0.630)
Maximum uneven wear (measured at 8 positions)
0.015 (0.0006)
Runout limit (with it attached to the vehicle)
0.05 (0.0020)
August 2012
2012 Pathfinder
BRC-1
BRAKES
C
D
E
G
H
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SECTION
BRC
A
B
BRC
N
O
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CONTENTS
BRAKE CONTROL SYSTEM
TYPE 1
BASIC INSPECTION . . . . . . . . .
APPLICATION NOTICE . . . . . . . . . ..
Application Notice . . . . . . . . . . . . .....
DIAGNOSIS AND REPAIR WORKFLOW . . ..
Work Flow . . . . . . . . . . . . . . . .....
Diagnostic Work Sheet . . . . . . . . . . .
INSPECTION AND ADJUSTMENT . . . . .
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT . . . . . . . . . . . . . .
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description . . . . . . . .
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement . .
ADJUSTMENT OF STEERING ANGLE SENSOR
NEUTRAL POSITION . . . . . . . . . . . .
ADJUSTMENT OF STEERING ANGLE SENSOR
NEUTRAL POSITION : Description . . . . . .
CALIBRATION OF DECEL G SENSOR . . . . ...
CALIBRATION OF DECEL G SENSOR : Descrip-
tion . . . . . . . . . . . . . . . . . . ..
CALIBRATION OF DECEL G SENSOR : Special
Repair Requirement . . . . . . . . . . . .
SYSTEM DESCRIPTION . . . . . . . .
APPLICATION NOTICE . . . . . . . . . .
Application Notice . . . . . . . . . . . . ...
VDC . . . . . . . . . . . . . . . . .
System Diagram . . . . . . . . . . . . . ..
Hydraulic Circuit Diagram . . . . . . . . . ...
System Description . . . . . . . . . . . . .
Component Parts Location . . . . . . . . . ..
Component Description . . . . . . . . . . ...
TCS . . . . . . . . . . . . . . . . .
System Diagram . . . . . . . . . . . . . ..
System Description . . . . . . . . . . . . ..
Component Parts Location . . . . . . . . . ..
Component Description . . . . . . . . . . ...
ABS . . . . . . . . . . . . . . . . ...
System Diagram . . . . . . . . . . . . . ..
System Description . . . . . . . . . . . . ..
Component Parts Location . . . . . . . . . ..
Component Description . . . . . . . . . . ...
EBD . . . . . . . . . . . . . . . . ...
System Diagram . . . . . . . . . . . . . ..
System Description . . . . . . . . . . . . ..
Component Parts Location . . . . . . . . . ..
Component Description . . . . . . . . . . ...
DIAGNOSIS SYSTEM [ABS ACTUATOR
AND ELECTRIC UNIT (CONTROL UNIT)] . ...
CONSULT Function (ABS) . . . . . . . . . ..
DTC/CIRCUIT DIAGNOSIS . . . . . . .
APPLICATION NOTICE . . . . . . . . .
Application Notice . . . . . . . . . . . . .
C1101, C1102, C1103, C1104 WHEEL SEN-
SOR-1 . . . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Component Inspection . . . . . . . . . . . .
Special Repair Requirement . . . . . . . . .
C1105, C1106, C1107, C1108 WHEEL SEN-
SOR-2 . . . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
August 2012
2012 Pathfinder
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