Nissan Pathfinder (2009 year). Manual - part 91

 

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Nissan Pathfinder (2009 year). Manual - part 91

 

 

BR-10

< BASIC INSPECTION >

BRAKE BOOSTER

BRAKE BOOSTER

Inspection

INFOID:0000000004391464

OPERATION

With engine stopped, change vacuum to atmospheric pressure by
depressing brake pedal several times. Then with brake pedal fully
depressed, start engine and when vacuum pressure reaches the
standard, make sure that clearance between brake pedal and floor
panel decreases.

AIR TIGHT

• Run engine at idle for approximately 1 minute, and stop it after

applying vacuum to booster. Depress brake pedal normally to
change vacuum to atmospheric pressure. Make sure that distance
at intervals of 5 seconds between brake pedal and floor panel
gradually increases.

• Depress brake pedal while engine is running, and stop engine with pedal depressed. The pedal stroke

should not change after holding pedal down for 30 seconds.

BRA0037D

SBR365AA

2009 Pathfinder

VACUUM LINES

BR-11

< BASIC INSPECTION >

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VACUUM LINES

Inspection

INFOID:0000000004375889

VISUAL INSPECTION

Check for improper assembly, damage and deterioration. Replace as necessary.

CHECK VALVE INSPECTION

Airtightness Inspection

Use a suitable vacuum pump to check. Connect to brake booster
side of check valve.

Check valve specification

: Refer to 

BR-56, "Check 

Valve"

.

LFIA0217E

2009 Pathfinder

BR-12

< BASIC INSPECTION >

BRAKE MASTER CYLINDER

BRAKE MASTER CYLINDER

On Board Inspection

INFOID:0000000004375890

LEAK INSPECTION

Check for leaks at master cylinder to brake booster attachment point, reservoir tank, and brake tube connec-
tions.

2009 Pathfinder

BRAKE TUBE AND HOSE

BR-13

< BASIC INSPECTION >

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BRAKE TUBE AND HOSE

Hydraulic Circuit

INFOID:0000000004391465

Brake Tube and Hose Connections

AWFIA0411ZZ

1.

Actuator

2.

Master cylinder

3.

Brake booster

4.

Connector

A.

Union bolt
18.2 N·m (1.9 kg-m, 13 ft-lb)

B.

Flare nut M12
18.2 N·m (1.9 kg-m, 13 ft-lb)

C.

Flare nut M10
13.0 N·m (1.3 kg-m, 10 ft-lb)

2009 Pathfinder

BR-14

< BASIC INSPECTION >

BRAKE TUBE AND HOSE

ABS Actuator and Electric Unit Brake Pipe Connections for VK56DE

WFIA0389E

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 the master cylinder secondary side
18.2 N·m (1.9 kg-m, 13 ft-lb)

6.

From the 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

9.

Grommet

10. Collar

2009 Pathfinder

BRAKE TUBE AND HOSE

BR-15

< BASIC INSPECTION >

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ABS Actuator and Electric Unit Brake Pipe Connections for VQ40DE

CAUTION:

• All hoses and piping (tubes) must be free from excessive bending, twisting and pulling.
• Make sure there is no interference with other parts when turning the steering wheel both clockwise

and counterclockwise.

• The brake piping is an important safety part. If a brake fluid leak is detected, always disassemble the

parts. Replace applicable part with a new one, if necessary.

• 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.

• Do not bend or twist brake hose sharply, or strongly pull it.
• When removing components, cover connections so that no dirt, dust, or other foreign matter gets in.
• Refill with new specified brake fluid. Refer to 

MA-12, "Fluids and Lubricants"

.

• Do not reuse drained brake fluid.

FRONT BRAKE

FRONT BRAKE : Inspection

INFOID:0000000004375892

INSPECTION AFTER REMOVAL

CAUTION:

Brake tubes and hoses are important safety parts. Always disassemble the parts and retighten their fit-
tings, if a brake fluid leak is detected. Replace applicable part with a new one, if damaged part is
detected. 

ALFIA0146ZZ

1.

From master cylinder secondary side
18.2 N·m (1.9 kg-m, 13 ft-lb)

2.

To rear right disc brake
13.0 N·m (1.3 kg-m, 10 ft-lb)

3.

To rear 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.

To front left disc brake
13.0 N·m (1.3 kg-m, 10 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

Front

2009 Pathfinder

BR-16

< BASIC INSPECTION >

BRAKE TUBE AND HOSE

1.

Check brake lines (tubes and hoses) and connections for fluid leaks, damage, twists, deformation, contact
with other parts, and loose connections. Replace any parts as necessary. Refer to 

BR-13, "Hydraulic Cir-

cuit"

.

2.

While depressing brake pedal under a force of 785 N (80 kg-f, 177 lb-f) with engine running for approxi-
mately 5 seconds, check each part for fluid leaks.

REAR BRAKE

REAR BRAKE : Inspection

INFOID:0000000004375893

INSPECTION AFTER REMOVAL

CAUTION:

Brake tubes and hoses are important safety parts. Always disassemble the parts and retighten their fit-
tings, if a brake fluid leak is detected. Replace applicable part with a new one, if damaged part is
detected. 

1.

Check brake lines (tubes and hoses) and connections for fluid leaks, damage, twists, deformation, contact
with other parts, and loose connections. Replace any parts as necessary. Refer to 

BR-13, "Hydraulic Cir-

cuit"

.

2.

While depressing brake pedal under a force of 785 N (80 kg-f, 177 lb-f) with engine running for approxi-
mately 5 seconds, check each part for fluid leaks.

2009 Pathfinder

BRAKE PEDAL

BR-17

< ON-VEHICLE MAINTENANCE >

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ON-VEHICLE MAINTENANCE

BRAKE PEDAL

Inspection and Adjustment - Standard Pedal

INFOID:0000000004375894

INSPECTION

1.

Inspect the brake pedal free height (H) from the floor using Tool
at a 90

°

 angle to the floor as shown. 

2.

Adjust the brake pedal height to specifications.

Brake Pedal Specifications

Unit: mm (in)

ADJUSTMENT

1.

Loosen the stop lamp switch and ASCD cancel switch by turning 45

°

 counterclockwise.

Tool number

: 

—

(J-46532)

AWFIA0433ZZ

Pedal free height (H)

Refer to 

BR-55, "Brake Pedal"

.

Pedal full stroke (S)
[Depressed under a force of 490 N (50 kg, 110 lb) with engine running]

Refer to 

BR-55, "Brake Pedal"

.

Clearance between pedal stopper and threaded end of stop lamp switch and ASCD 
switch (C

1

) or (C

2

)

Refer to 

BR-55, "Brake Pedal"

.

2009 Pathfinder

 

 

 

 

 

 

 

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