Nissan Xterra. Manual — part 119
VDC
BRC-133
< SYSTEM DESCRIPTION >
[TYPE 2]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
VDC
System Diagram
INFOID:0000000009482729
System Description
INFOID:0000000009482730
• Vehicle Dynamics Control system detects driver
′s steering operation amount and brake pedal travel from
steering angle sensor. Using information from yaw rate/side/decel G sensor and wheel sensor, VDC judges
driving condition (conditions of under steer and over steer) to improve vehicle driving stability by controlling
brake application to 4 wheels and engine output.
• During VDC operation, it informs driver of system operation by flashing SLIP indicator lamp.
• Electrical system diagnosis by CONSULT is available.
AWFIA0680GB
BRC-134
< SYSTEM DESCRIPTION >
[TYPE 2]
VDC
Component Parts Location
INFOID:0000000009482731
AWFIA0989GB
1.
Front wheel sensor LH E18
Front wheel sensor RH E117
2.
Brake fluid level switch E21
3.
ABS actuator and electric unit (control unit)
E125
4.
Hill descent control switch M155 5.
Combination meter M24
6.
Yaw rate/side/decel G sensor B73
VDC
BRC-135
< SYSTEM DESCRIPTION >
[TYPE 2]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Component Description
INFOID:0000000009482732
7.
Rear wheel sensor LH C11
Rear wheel sensor RH C10
8.
Steering angle sensor (behind spiral ca-
ble) M47
(Steering wheel removed for clarity)
9.
VDC OFF switch M154
10. Stop lamp switch E39
11.
Stop lamp relay E12
Component parts
Reference
ABS actuator and electric unit (control unit)
Pump
Motor
Actuator relay
Solenoid valve
VDC switch-over valve
(CV1, CV2, SV1, SV2)
Wheel sensor
Yaw rate/side/decel G sensor
Stop lamp switch
Steering angle sensor
Brake fluid level switch
Hill descent control switch
VDC OFF switch
ABS warning lamp
Brake warning lamp
Hill descent control indicator lamp
VDC OFF indicator lamp
SLIP indicator lamp
BRC-136
< SYSTEM DESCRIPTION >
[TYPE 2]
TCS
TCS
System Diagram
INFOID:0000000009482733
System Description
INFOID:0000000009482734
• Traction Control System is a function that electronically controls engine torque, brake fluid pressure and A/T
gear position 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 (rear
wheels), it compares wheel speed signals from all 4 wheels. At this time, LH and RH rear brake fluid pres-
sure are controlled, while fuel being cut to engine and throttle valve being closed to reduce engine torque by
the control unit. Further more, throttle 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.
AWFIA0680GB
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