Nissan Altima HL32 Hybrid. Manual - part 116

 

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Nissan Altima HL32 Hybrid. Manual - part 116

 

 

EBD

BRC-29

< FUNCTION DIAGNOSIS >

[VDC/TCS/ABS]

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Component Description

INFOID:0000000004212624

1.

ABS relay No.1

2.

ABS motor relay No.1

3.

ABS motor relay No.2

4.

ABS relay No.2

5.

Brake ECU

6.

Front RH wheel sensor

7.

Front LH wheel sensor

8.

Brake actuator

9.

Brake simulator

10. Brake warning buzzer 

11. Brake stroke sensor

12. VDC warning lamp

13. SLIP indicator lamp

14. ABS warning lamp (For US)

15. ABS warning lamp (For CANADA)

16. Brake warning lamp (For US)

17. Brake warning lamp (For CANADA) 18. Electronically Controlled Brake 

warning lamp

19. Steering angle sensor

20. Yaw rate/side/decel G sensor

21. Rear RH wheel sensor

22. Rear LH wheel sensor

23. Brake capacitor

A.

Engine room right side

B.

Engine room right side

C.

Steering knuckle (RH)

D.

Steering knuckle (LH)

E.

Engine room right side

F.

Engine room left side

G.

Cluster lid C

H.

Instrument driver panel lower

I.

Combination meter

J.

Spiral cable assembly

K.

Center Console

L.

Rear knuckle (RH)

M.

Rear knuckle

N.

Trunk room right side

AWFIA0495ZZ

BRC-30

< FUNCTION DIAGNOSIS >

[VDC/TCS/ABS]

EBD

Components

Functions

Brake ECU

Processes the signals from each sensor to perform brake control for ABS, TCS, and VDC. 
In addition, it communicates with the HV control ECU to output a control signal.

ABS main relay
(ABS relay No.1, 2)

Controlled by the brake ECU. In addition to supplying power to each solenoid, it supplies 
power to the brake ECU.

ABS motor relay
(ABS motor relay No.1, 2)

Controlled by the brake ECU. Supplies power to the pump motor.

Wheel sensor

Detects the wheel speed and inputs the results to the brake ECU.

Stop lamp switch

Detects the brake operating conditions and inputs the result to the brake ECU. It supplies 
power to the brake ECU.

Brake stroke sensor

Detects the brake pedal stroke volume and inputs the result to the brake ECU.

Brake capacitor

Provides the system with a supplementary power supply by discharging the electric charge 
of the brake capacitor. It happens when an electric charge is accumulator in the brake capac-
itor in the unit and the vehicle power voltage (12 V) is reduced.

Brake warning buzzer

Sounds continuously to warm the driver of a reduction in accumulator hydraulic pressure in 
the brake actuator, an abnormality in the power supply system, or a reduction in the vehicle 
power voltage (12 V).

HV ECU

Controls the engine output during the operation of TCS and VDC by communicating with the 
brake ECU.

Yaw rate/side/decel G sensor

Detects the yaw rate (axial rotation) and the forward and lateral acceleration, and inputs the 
results to the brake ECU.

Steering angle sensor

Detects the steering angle and direction, and outputs the results to the brake ECU through 
CAN communication.

Master cylinder

Generates pressure in accordance with the force of the brake operation.

Brake fluid reservoir

Stores brake fluid for the master cylinder system and power supply system.

Brake fluid level switch

Detects a reduction in the level of the brake fluid in the reservoir.

Brake simulator

Generates a natural pedal stroke in accordance with the pedal force of the driver during sys-
tem control.

Brake actuator

Controls the hydraulic pressure of each of the four wheel cylinders using the output signal of 
the brake ECU.

Pump motor

Pumps up the brake fluid from the reservoir and supplies the accumulator with high hydraulic 
pressure.

Accumulator

Accumulators for the hydraulic pressure that was generated by the pump.

Accumulator pressure sensor (PACC)

Built into the brake actuator to detect the accumulator hydraulic pressure.

Relief valve

Prevents excessive high pressure in the power supply system. It relieves the system by 
sending brake fluid to the reservoir when the pump has operated continuously, for example, 
during an accumulator hydraulic pressure sensor malfunction.

Master cylinder pressure sensor
(PMC1, PMC2)

Built into the brake actuator to detect the pressure of the master cylinder and input the results 
to the brake ECU.

Wheel cylinder pressure sensor
(PFR, PFL, PRR, PRL)

Built into the brake actuator to detect the brake hydraulic pressure of each wheel cylinder.

Switching solenoid valve
(SMC1, SMC2)

Circuits from a master cylinder to a wheel cylinder are interrupted.

Linear solenoid valve
(SLA##, SLR##)

Controls the wheel cylinder hydraulic pressure during normal brake operation, ABS, TCS, 
and VDC control. SLA## are solenoids for controlling pressure increases, while SLR## are 
solenoids for controlling pressure decreases.

ABS warning lamp

Comes on to inform the driver that a malfunction in the ABS have occurred.

Brake warning lamp

• When a malfunction occurs in the oil pressure system.
• When EBD is not controlled.

Electronically Controlled Brake warning 
lamp

Comes on to inform the driver that a malfunction in the Electronically Controlled Brake or de-
generative brake has occurred.

EBD

BRC-31

< FUNCTION DIAGNOSIS >

[VDC/TCS/ABS]

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SLIP indicator lamp

Blinks to inform the driver that ABS, TCS and VDC are operating.

VDC warning lamp

• Comes on to inform the driver that a malfunction in VDC system have occurred.
• Zero point of steering angle sensor is dislocated.
• Remove the auxiliary battery.

Components

Functions

BRC-32

< FUNCTION DIAGNOSIS >

[VDC/TCS/ABS]

TCS

TCS

System Diagram

INFOID:0000000004212625

System Description

INFOID:0000000004212626

SYSTEM DESCRIPTION

The TCS (Traction Control System) helps prevent the drive wheels from slipping when the driver depresses

the accelerator pedal excessively while starting off or accelerating on a slippery surface.

OPERATION DESCRIPTION

The brake ECU detects wheelspin by receiving signals from each wheel sensor. The brake ECU controls

engine torque with the HV ECU via CAN communication and brake hydraulic pressure through the solenoid

valve. The SLIP indicator lamp blinks when the system is operating. When there is a malfunction in the TCS

system, the VDC warning lamp come ON.

JSFIA0059GB

 

 

 

 

 

 

 

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