Nissan Maxima. Manual - part 247

VDC

BRC-9

< SYSTEM DESCRIPTION >

[VDC/TCS/ABS]

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Hydraulic Circuit Diagram

INFOID:0000000010049021

System Description

INFOID:0000000010049022

• Vehicle dynamic control system detects driver's steering operation amount from the steering angle sensor.

Using input information from the yaw rate/side/decel G sensor and wheel speed sensors, the VDC system

judges driving conditions (conditions of understeer and oversteer) and controls engine output and brake

application to improve vehicle driving stability.

• During VDC operation, it informs driver of system operation by flashing SLIP indicator lamp.

• Electrical system diagnosis by CONSULT is available. 

1.

Primary side

2.

VDC/TCS/ABS actuator

3.

Primary side VDC switch-over valve 
1 (USV1)

4.

Primary side VDC switch-over valve 
1 (HSV1)

5.

Primary side pump

6.

Rear right inlet solenoid valve

7.

Primary side inlet valve

8.

Primary side damper

9.

Front left inlet solenoid valve

10. Rear right outlet solenoid valve

11. Front left outlet solenoid valve

12. Front left caliper

13. Rear right caliper

14. Rear left caliper

15. Front right caliper

16. Rear left outlet solenoid valve

17. Front right outlet solenoid valve

18. Rear left inlet solenoid valve

19. Secondary side damper

20. Secondary side inlet valve

21. Front right inlet solenoid valve

22. Secondary side pump

23. Secondary side VDC switch-over 

valve 2 (HSV2)

24. Secondary side VDC switch-over 

valve 2 (USV2)

25. Secondary side

ALFIA0189ZZ

BRC-10

< SYSTEM DESCRIPTION >

[VDC/TCS/ABS]

VDC

Component Parts Location

INFOID:0000000010049023

AWFIA0942GB

1.

Front wheel sensor LH E19
Front wheel sensor RH E41

2.

Brake fluid level switch E24

3.

Parking brake switch E35

4.

Stop lamp switch E38

5.

VDC OFF switch M72

6.

Combination meter M24

VDC

BRC-11

< SYSTEM DESCRIPTION >

[VDC/TCS/ABS]

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Component Description

INFOID:0000000010049024

7.

Rear wheel sensor LH C1
Rear wheel sensor RH C2

8.

Yaw rate/side/decel G sensor M55

9.

Steering angle sensor M53 (view with steer-
ing wheel removed)

10. ABS actuator and electric unit (con-

trol unit) E26

Component parts

Reference

ABS actuator and electric unit (control unit)

Pump

BRC-35, "Description"

Motor

Actuator relay (Main relay)

BRC-37, "Description"

Solenoid valve

BRC-44, "Description"

Pressure sensor

BRC-51, "Description"

VDC switch-over valve (HSV1, HSV2, USV1, 
USV2)

BRC-59, "Description"

Wheel sensor

BRC-39, "Description"

Stop lamp switch

BRC-42, "Description"

Steering angle sensor

BRC-54, "Description"

Yaw rate/side/G sensor

BRC-56, "Description"

Brake fluid level switch

BRC-64, "Description"

Parking brake switch

BRC-68, "Description"

VDC OFF switch

BRC-70, "Description"

ABS warning lamp

BRC-72, "Description"

Brake warning lamp

BRC-73, "Description"

VDC OFF indicator lamp

BRC-75, "Description"

Slip indicator lamp

BRC-77, "Description"

BRC-12

< SYSTEM DESCRIPTION >

[VDC/TCS/ABS]

TCS

TCS

System Diagram

INFOID:0000000010049025

System Description

INFOID:0000000010049026

• Traction Control System is a function that electronically controls engine torque and brake fluid pressure to

ensure the optimum slippage ratio at drive wheels by computing wheel speed signals from 4 wheel sensors.

When ABS actuator and electric unit (control unit) detects a spin at drive wheels, it compares wheel speed

signals from all 4 wheels. At this time, LH and RH front brake fluid pressure are controlled, while fuel being

cut to engine and throttle valve being closed to reduce engine torque by the control unit. Further more, throt-

tle position is continuously controlled to ensure the optimum engine torque at all times.

• During TCS operation, it informs driver of system operation by flashing slip indicator lamp.

• Electrical system diagnosis by CONSULT is available.

AWFIA0440GB