2014 Infiniti QX50 Base, AWDFACTORY OEM SERVICE PROCEDURE

Component Description

x: Applicable
Component Function Description Description
(1) (2) (3)
ICC sensor integrated unit x x x Refer to "DESCRIPTION ".
ECM x x x Refer to "DESCRIPTION ".
ABS actuator and electric unit (control unit) x x x Refer to "DESCRIPTION ".
BCM x     Transmits the front wiper request signal to ICC sensor integrated unit via CAN communication.
TCM x x   Refer to "DESCRIPTION ".
Unified meter and A/C amp. x x x Receives the meter display signal, ICC warning lamp signal, and IBA OFF indicator lamp signal from ICC sensor integrated unit via CAN communication and transmits them to the combination meter via the communication line.
Combination meter x x x Performs the following operations using the signals received from the unified meter and A/C amp. via the communication line.
  • Displays the ICC system operation status using the meter display signal.
  • Illuminates the ICC system warning lamp using the ICC warning lamp signal.
  • Illuminates the IBA OFF indicator lamp using the IBA OFF indicator lamp signal.
ICC brake switch x x x Refer to "DESCRIPTION ".
Stop lamp switch x x x
ICC brake hold relay x   x Refer to "DESCRIPTION ".
Brake booster control unit x x x Refer to "DESCRIPTION ".
Brake booster x   x Refer to "DESCRIPTION ".
Brake pressure sensor x   x Refer to "DESCRIPTION ".
Booster solenoid/Release switch x   x
ICC warning chime x x x Refer to "DESCRIPTION ".
Steering angle sensor x     Refer to "DESCRIPTION ".
IBA OFF switch     x(4) Refer to "DESCRIPTION ".
(1) Vehicle-to-vehicle distance control mode
(2) Conventional (fixed speed) cruise control mode
(3) IBA system and Brake Assist (With Preview Function)
NOTE:
(4) Only IBA system uses
Factory Service Tools

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  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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