Nissan Leaf. Manual - part 172

PREPARATION

BR-9

< PREPARATION >

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PREPARATION

PREPARATION

Special Service Tool

INFOID:0000000010431970

The actual shape of the tools may differ from those illustrated here.

Commercial Service Tools

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Tool number
(TechMate No.)
Tool name

Description

—

(J-46532)
Brake height tool

Measuring brake pedal height

38-PFM92
( — )
ProCut™ PFM Series Lathe

Refinishing rotors

LFIA0227E

ALFIA0092ZZ

Tool name

Description

Power tool

Loosening nuts, screws and bolts

Brake caliper wrench

Return the piston

PIIB1407E

NNFIA0040ZZ

BR-10

< SYSTEM DESCRIPTION >

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

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View with the glove box assembly re-
moved

Brake pedal

Inside motor room (left)

Inside luggage side lower finisher LH

JSFIA2282ZZ

COMPONENT PARTS

BR-11

< SYSTEM DESCRIPTION >

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Component parts

Function

VCM

Mainly transmits the following signals to electrically-driven intelligent brake unit via 
CAN communication.
• VCM control signal
• Current regenerative torque signal
• VCM status signal
• Shift position signal
Mainly receives the following signal from electrically-driven intelligent brake unit via 
CAN communication.
• Target braking force signal
Refer to 

EVC-15, "Component Parts Location"

 for detailed installation location.

ABS actuator and electric unit (control 
unit)

Mainly transmits the following signals to electrically-driven intelligent brake unit via 
CAN communication.
• ABS actuator and electric unit (control unit) control signal
• Vehicle speed signal (ABS)
• Decel G signal
• Front LH wheel speed signal
• Rear LH wheel speed signal
• Front RH wheel speed signal
• Rear RH wheel speed signal
• Yaw rate signal
• Side G signal
• VDC malfunction signal
• VDC OFF switch signal
• Master cylinder fluid pressure signal
Mainly receives the following signals from electrically-driven intelligent brake unit via 
CAN communication.
• Electrically-driven intelligent brake control signal
• Brake assist request signal
• Brake power supply backup operation signal
• Brake power supply backup operation request signal
• Brake warning lamp request signal
• Brake system warning lamp request signal
Refer to 

BRC-10, "Component Parts Location"

 for detailed installation location.

BCM

Mainly transmits the following signals to electrically-driven intelligent brake unit via 
CAN communication.
• Sleep wake up signal
• Power switch ON signal
• Door switch signal
Refer to 

BCS-5, "BODY CONTROL SYSTEM : Component Parts Location"

 for de-

tailed installation location.

Combination meter (brake warning 
lamp, brake system warning lamp)

Mainly receives the following signals from ABS actuator electric unit (control unit) via 
electrically-driven intelligent brake unit via CAN communication.
• Brake warning lamp signal
• Brake system warning lamp signal
Refer to 

MWI-6, "METER SYSTEM : Component Parts Location"

 for detailed installa-

tion location.

Steering angle sensor

Mainly transmits the following signal to electrically-driven intelligent brake unit via 
CAN communication.
• Steering angle sensor signal
Refer to 

BRC-10, "Component Parts Location"

 for detailed installation location.

Warning buzzer

BR-13, "Warning Buzzer"

Stroke sensor

BR-13, "Stroke Sensor"

Electrically-driven intelligent brake unit

BR-12, "Electrically-driven Intelligent Brake Unit"

Brake power supply backup unit

BR-13, "Brake Power Supply Backup Unit"

BR-12

< SYSTEM DESCRIPTION >

COMPONENT PARTS

Electrically-driven Intelligent Brake Unit

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Integrates the control module, master cylinder, and brake booster,

and it controls the fluid pressure that is sent to the ABS actuator and

electric unit (control unit).

CONTROL MODULE

• Controls the fluid pressure that is applied to the brake calipers, based on the signals from each sensor and

unit.

• Performs cooperative regenerative brake control.

• When a malfunction is detected, the system enters fail-safe mode.

MASTER CYLINDER

• Generates brake fluid pressure according to the amount of piston movement.

• The fluid pressure generated by the master cylinder is sent to the ABS actuator and electric unit (control

unit).

BRAKE BOOSTER

• Contains a motor and generates boost force according to the amount that the brake pedal is depressed and

the amount of cooperative regenerative brake control.

• Uses the boost force to generate fluid pressure in the master cylinder.

JSFIA1830ZZ

Motor

Piston

JSFIA1643ZZ