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Home >> Infiniti >> 2017 >> QX80 Base, AWD >> Repair and Diagnosis >> Brakes >> Brakes Control Systems >> Brake Control System (With VDC) >> System Description >> Component Parts >> Component Description
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Component Description

Component Reference/Function
ABS actuator and electric unit (control unit) Motor/accumulator assembly ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) 
Motor relay
Actuator relay (main relay)
ABS IN valve
ABS OUT valve
Cut valve 1
Cut valve 2
Suction valve 1
Suction valve 2
Control pressure sensor* 1
Accumulator pressure sensor
Master cylinder pressure sensor
Wheel sensor WHEEL SENSOR AND SENSOR ROTOR 
Stop lamp switch STOP LAMP SWITCH 
Steering angle sensor STEERING ANGLE SENSOR 
Yaw rate/side/decel G sensor YAW RATE/SIDE/DECEL G SENSOR 
Brake fluid level switch BRAKE FLUID LEVEL SWITCH 
Parking brake switch PARKING BRAKE SWITCH 
VDC OFF switch VDC OFF SWITCH 
ECM Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN communication.
  • Accelerator pedal position signal
  • Engine speed signal

Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN communication.
  • Target throttle position signal
TCM Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN communication.
  • Shift position signal
  • Current gear position signal
Transfer control unit* 2 Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN communication.
  • Current 4WD mode signal
ABS warning lamp SYSTEM DESCRIPTION 
Brake warning lamp
VDC warning lamp
VDC OFF indicator lamp

* 1: Models with Advanced Driver Assistance System

* 2: Models with 4WD system