Nissan Altima HL32 Hybrid. Manual - part 158

ABS MOTOR RELAY NO. 1 AND NO. 2

BRC-197

< ON-VEHICLE MAINTENANCE >

[VDC/TCS/ABS]

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ABS MOTOR RELAY NO. 1 AND NO. 2

Inspection

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INSPECT ABS MOTOR RELAY NO.1 AND NO.2

Measure the resistance according to the value(s) in the table below.

If the value is not as specified, replace the ABS motor relay No.1 or No.2.

Tester connection

Condition

Specified condition

3 – 5

Always

10 k

Ω or higher

3 – 5

Apply B+ between termi-

nal is 1 and 2

Below 1 

Ω

BRC-198

< ON-VEHICLE REPAIR >

[VDC/TCS/ABS]

BRAKE ECU

ON-VEHICLE REPAIR

BRAKE ECU

Exploded View

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Removal and Installation

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REMOVAL

CAUTION:

Do not apply excessive impact to brake ECU, such as dropping it.
1. Disconnect brake ECU connector.
2. Remove two nuts and brake ECU from lower bracket.
3. Remove screws and bracket from brake ECU.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

After erasing Brake ECU memories, perform zero adjustment of following sensors and initialization of

linear solenoid valve. These procedures should be performed on a flat place.

• Steering angle sensor. Refer to 

BRC-9, "PERFORM ZERO POINT OF STEERING ANGLE SENSOR :

Description"

.

• Yaw rate/side/decel G sensor. Refer to 

BRC-8, "PERFORM ZERO POINT OF YAW RATE/SIDE/DECEL

G SENSOR : Description"

.

• Brake stroke sensor. Refer to 

BRC-9, "PERFORM ADJUSTMENT OF STROKE SENSOR : Descrip-

tion"

.

1.

Bracket

2.

Brake ECU

AWFIA0512GB

BRAKE ECU

BRC-199

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[VDC/TCS/ABS]

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• Linear solenoid valve. Refer to 

BRC-7, "PERFORM INITIALIZATION OF LINEAR SOLENOID VALVE

AND CALIBRATION : Description"

.

BRC-200

< ON-VEHICLE REPAIR >

[VDC/TCS/ABS]

BRAKE ACTUATOR

BRAKE ACTUATOR

Exploded View

INFOID:0000000004212777

Removal and Installation

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REMOVAL

CAUTION:

• Disconnect the 12-volt battery negative terminal for two minutes after turning the Hybrid System

OFF. During this period, do not open/close doors, nor step on the brake pedal.

• Note the location of each tube on removal to avoid mixing them up during installation.

• To remove brake tube, use a flare nut wrench to prevent flare nuts and brake tube from being dam-

aged. To install, use flare nut torque wrench.

• Do not apply excessive impact to brake actuator, such as dropping it.

• Do not remove and install actuator by holding harness.

• After work is completed, bleed air from brake tube. Refer to 

BR-14, "Bleeding Brake System"

.

• If brake fluid spills on any painted surface, wash or otherwise remove it completely.

• Perform accumulator pressure zero down.
1. Disconnect the 12-volt battery negative terminal.
2. Remove ABS motor relay No. 1 and No. 2.

NOTE:

If the pump motor operates while air remains inside the brake actuator hose, the air will enter the actuator

resulting in difficulty in bleeding the brakes.

3. Relieve fuel pressure. Refer to 

FL-4, "Quick Connector"

.

4. Drain brake fluid. Refer to 

BR-14, "Bleeding Brake System"

.

5. Remove front wiper arms. Refer to 

WW-92, "FRONT WIPER ARMS : Removal and Installation"

.

1.

Fluid reservoir

2.

Brake actuator

3.

Bracket

AWFIA0513GB