2017 Infiniti Q50 Base, AWDFACTORY OEM SERVICE PROCEDURE

For VR30DDTT Engine Models

GNSJSOIA2402ZZ-402Courtesy of NISSAN NORTH AMERICA, INC.
WZ-A Integral switch WZ-B Inside of dash side finisher LH    
No. Part Description
WHITE-1 Display control unit
  • Display control unit receives the following signal from integral switch.
    • Select signal
  • Display control unit transmits information of PERSONAL mode set by the driver to the chassis control module via the following signal.
    • Drive mode characteristics customizing signal
  • The display control unit transmits an user information signal to the following units:
    • Combination meter
    • A/C auto amp.
    • Driver seat control unit
    • ADAS control unit
    • Chassis control unit
    • BCM
  • The display control unit receives a key link signal and a log - in permit signal from chassis control module.
  • The display control unit receives a key ID signal from BCM.
WHITE-2 A/C auto amp.
  • The A/C auto amp. receives a key link signal and a log - in permit signal from chassis control module.
  • The A/C auto amp. receives a key ID signal from BCM.
  • The A/C auto amp. receives a user information signal from display control unit.
Refer to COMPONENT LOCATION for installation.
WHITE-3 NAVI control unit The NAVI control unit receives a user information signal from display control unit.
Refer to COMPONENT LOCATION for installation.
WHITE-4 AV control unit The AV control unit receives a user information signal from display control unit.
Refer to COMPONENT LOCATION for installation.
WHITE-5 Steering force control module*1
  • Steering force control module receives the following signal from chassis control module.
    • Drive mode signal
  • Steering force control module controls the steering mode and response according to the received signal.
Refer to COMPONENT LOCATION for installation.
WHITE-6 BCM
  • The BCM transmits a key ID signal to the following units:
    • Combination meter
    • Display control unit
    • A/C auto amp.
    • Chassis control unit
    • Driver seat control unit
    • ADAS control unit
  • The BCM receives a key link signal and a log - in permit signal from chassis control module.
  • The BCM receives a user information signal from display control unit.
Refer to COMPONENT LOCATION for installation.
WHITE-7 ECM
  • ECM receives the following signal from TCM.
    • Drive mode signal
  • ECM controls throttle angle characteristics and torque according to the received signal and transmits the following signals to ADAS control unit.
    • ECO pedal reaction force control signal
Refer to COMPONENT LOCATION for installation.
WHITE-8 Power steering control module*2
  • Power steering control module receives the following signal from chassis control module.
    • Drive mode signal
  • Power steering control module controls the steering mode to the received signal.
Refer to COMPONENT LOCATION for installation.
WHITE-9 TCM
  • TCM receives the following signal from chassis control module.
    • Drive mode signal
  • TCM selects a shift pattern according to the received signal and transmits the following signal to ECM and the ADAS control unit.
    • Drive mode signal
Refer to COMPONENT LOCATION for installation.
WHITE-10 Accelerator pedal actuator
  • Accelerator pedal actuator receives the following signal from the ADAS control unit.
    • ECO pedal reaction force control signal
  • Accelerator pedal actuator exerts a feedback force on the accelerator pedal according to the received signal.
WHITE-11 ABS actuator and electric unit
  • ABS actuator and electric unit receives the following signals from chassis control module.
    • Active trace control function control signal
    • Drive mode signal
  • ABS actuator and electric unit controls the active trace control function according to the received signal.
Refer to COMPONENT LOCATION for installation.
WHITE-12 Driver seat control unit
  • The driver seat control unit receives a key link signal and a log - in permit signal from chassis control module.
  • The driver seat control unit receives a user information signal from display control unit.
  • The driver seat control unit receives a key ID signal from BCM.

    Refer to COMPONENT LOCATION for installation.
WHITE-13 Combination meter
  • Combination meter receives the following signals from chassis control module.
    • Drive mode signal
    • Key link signal
    • Log - in permit signal
  • Combination meter displays the status of drive mode selected by the driver on the information display according to the received signal.
  • The combination meter receives a key ID signal from BCM.
  • The combination meter receives a user information signal from display control unit.
Refer to COMPONENT LOCATION for installation.
WHITE-14 Drive mode select switch DRIVE MODE SELECT SWITCH 
WHITE-15 ADAS control unit
  • ADAS control unit receives the following signal from chassis control module.
    • Drive mode signal
    • Key link signal
    • Log - in permit signal
  • ADAS control unit controls accelerator reaction force of accelerator pedal actuator according to the received signal and transmits the following signals to accelerator pedal actuator.
    • ECO pedal reaction force control signal
  • The ADAS control unit receives a user information signal from display control unit.
  • The ADAS control unit receives a key ID signal from BCM.
Refer to COMPONENT LOCATION for installation.
WHITE-16 Integral switch (lower display)
  • Integral switch (lower display) allows the driver to set a PERSONAL mode arbitrarily.
  • Integral switch (lower display) outputs the following signal (set by a driver) to the display control unit.
    • Select signal
WHITE-17 Chassis control module
  • Chassis control module receives the following signals from drive mode select switch and display control unit.

    From drive mode select switch

    • Up/down signal

    From display control unit

    • Drive mode characteristics customizing signal
  • Chassis control module identifies the drive mode selected by the driver according to the received signal and transmits the following signal to related control modules.
    • Drive mode signal
  • The chassis control module transmits a key link signal and a log-in permit signal to the following units:
    • Combination meter
    • Display control unit
    • A/C auto amp.
    • Driver seat control unit
    • ADAS control unit
    • BCM
  • The chassis control module receives a key ID signal from BCM.
  • The chassis control module receives a user information signal from display control unit.
Refer to COMPONENT LOCATION for installation.

*1: Applied to the direct adaptive steering system models only.

*2: Applied to the electric power steering system models only.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • 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.