Infiniti QX56 (JA60). Manual — part 125
VDC
BRC-13
< FUNCTION DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Component Description
INFOID:0000000005147949
7.
VDC OFF switch M253
8.
Active booster E49
9.
Delta stroke sensor E114
10. Brake fluid level switch E21
11. Front pressure sensor E31
12. Rear pressure sensor E32
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
Steering angle sensor
VDC OFF switch
ABS warning lamp
Brake warning lamp
VDC OFF indicator lamp
SLIP indicator lamp
Front pressure sensor
Rear pressure sensor
Active booster
Delta stroke sensor
BRC-14
< FUNCTION DIAGNOSIS >
[VDC/TCS/ABS]
TCS
TCS
System Diagram
INFOID:0000000005147950
System Description
INFOID:0000000005147951
• 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-III is available.
AWFIA0065GB
TCS
BRC-15
< FUNCTION DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Component Parts Location
INFOID:0000000005206964
1.
Front wheel sensor LH E18
Front wheel sensor RH E117
2.
ABS actuator and electric unit (con-
trol unit) E125
3.
Combination meter M23, M24
4.
Rear wheel sensor LH C11
Rear wheel sensor RH C10
5.
Yaw rate/side/decel G sensor M108 6.
Steering angle sensor M17
AWFIA0572GB
BRC-16
< FUNCTION DIAGNOSIS >
[VDC/TCS/ABS]
TCS
Component Description
INFOID:0000000005206965
7.
VDC OFF switch M253
8.
Active booster E49
9.
Delta stroke sensor E114
10. Brake fluid level switch E21
11. Front pressure sensor E31
12. Rear pressure sensor E32
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
Steering angle sensor
VDC OFF switch
ABS warning lamp
Brake warning lamp
VDC OFF indicator lamp
SLIP indicator lamp
Front pressure sensor
Rear pressure sensor
Active booster
Delta stroke sensor
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