Nissan Quest E52. Manual - part 257

WHEEL SENSOR

BRC-121

< REMOVAL AND INSTALLATION >

[WITH VDC]

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Never rotate or pull rear wheel sensor as much as possible, when pulling out.

2.

Remove rear wheel sensor harness from the vehicle.

CAUTION:

Never twist and never pull rear wheel sensor harness, when removing.

INSTALLATION

Note the following, and install in the reverse order of the removal.
• Check that there is no foreign material like iron powder or damage on inner surface of rear wheel sensor

mounting hole of wheel hub and bearing assembly and sensor rotor. Install after cleaning when there are for-
eign material like iron powder, or replace when there is a malfunction.

• Never twist rear wheel sensor harness when installing rear wheel

sensor. Check that grommet (2) is fully inserted to bracket (1).
Check that rear wheel sensor harness is not twisted after installa-
tion.

CAUTION:

Check that the identification line of the rear wheel sensor is
faced vehicle front.

JPFIC0209ZZ

BRC-122

< REMOVAL AND INSTALLATION >

[WITH VDC]

SENSOR ROTOR

SENSOR ROTOR

FRONT SENSOR ROTOR

FRONT SENSOR ROTOR : Removal and Installation

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REMOVAL

Replace wheel hub as an assembly when replacing because sensor rotor cannot be disassembled. Refer to

FAX-9, "Removal and Installation"

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INSTALLATION

Replace wheel hub as an assembly when replacing because sensor rotor cannot be disassembled. Refer to

RAX-6, "Removal and Installation"

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REAR SENSOR ROTOR

REAR SENSOR ROTOR : Removal and Installation

INFOID:0000000009651457

REMOVAL

Replace wheel hub as an assembly when replacing because sensor rotor cannot be disassembled. Refer to

RAX-6, "Removal and Installation"

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INSTALLATION

Replace wheel hub as an assembly when replacing because sensor rotor cannot be disassembled. Refer to

RAX-6, "Removal and Installation"

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ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-123

< REMOVAL AND INSTALLATION >

[WITH VDC]

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ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Exploded View

INFOID:0000000009651458

Removal and Installation

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REMOVAL

1.

Disconnect battery cable from negative terminal.

2.

Drain brake fluid. Refer to 

BR-10, "Draining"

.

3.

Remove cowl top cover. Refer to 

EXT-22, "Removal and Installation"

.

4.

Remove brake tube form between ABS actuator and electric unit (control unit) and master cylinder
assembly. Refer to 

BR-20, "FRONT : Exploded View"

.

5.

Remove vacuum piping. Refer to 

BR-33, "Removal and Installation"

.

6.

Move the High-pressure pipe. Refer to 

HA-36, "HIGH-PRESSURE PIPE : Removal and Installation"

.

1.

ABS actuator and electric unit (con-
trol unit)

2.

ABS actuator and electric unit (con-
trol unit) harness connector

3.

Bracket

A.

To master cylinder primary side

B.

To front RH caliper

C.

To front LH caliper

D.

To master cylinder secondary side

E.

To rear RH caliper

F.

To rear LH caliper

: Vehicle front

: N·m (kg-m, ft-lb)

: N·m (kg-m, in-lb)

JSFIA0974GB

BRC-124

< REMOVAL AND INSTALLATION >

[WITH VDC]

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

7.

Disconnect ABS actuator and electric unit (control unit) harness
connector (1), follow the procedure described below.

a.

Push the pawl (A).

b.

Move the lever (B) in the direction (C) until locked.

c.

Disconnect ABS actuator and electric unit (control unit) harness
connector.

8.

Remove ABS actuator and electric unit (control unit) and
bracket.

CAUTION:

• Never remove and never install ABS actuator and electric

unit (control unit) by holding harness connector.

• Be careful not to drop ABS actuator and electric unit (control unit) and apply excessive impact to

it.

9.

Remove bracket from ABS actuator and electric unit (control unit).

INSTALLATION

Note the following, and install in the reverse order of removal.
• When replacing with a new ABS actuator and electric unit (control unit), never remove the protector of the

brake tube mounting hole until right before the brake tube is installed.

• Install ABS actuator and electric unit (control unit) as per the following instruction.
- Temporarily tighten mounting bolt (1) and temporarily fix bracket

(2). Tighten mounting bolts to the specified torque, according to the
tightening order (3) 

→

 (4) 

→

 (1).

• When installing brake tube, tighten to the specified torque using a

crowfoot and torque wrench so that flare nut and brake tube are
not damaged. Refer to 

BR-20, "FRONT : Exploded View"

.

• Never remove and install ABS actuator and electric unit (control

unit) by holding actuator harness.

• Bleed the brake piping after installation. Refer to 

BR-11, "Bleeding

Brake System"

.

• Never apply excessive impact to actuator, such as by dropping it.

• After installing the ABS actuator and electric unit (control unit) har-

ness connector (1), move the lever (A) in the direction (B) to
secure the locking.

• Perform steering angle sensor neutral position adjustment when

ABS actuator and electric unit (control unit) is replaced. Refer to

BRC-49, "Work Procedure"

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JSFIA0662ZZ

JSFIA0975ZZ

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