2018 Infiniti QX30 BaseFACTORY OEM SERVICE PROCEDURE

Component Parts Location

GNSJSGIA2078Z-078Courtesy of NISSAN NORTH AMERICA, INC.

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Steering gear assembly

No.

Component

Function

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Electronic stability program control unit
  • Transmits mainly the following signals to EPS control unit via CAN communication.
    • Front LH wheel speed signal
    • Front RH wheel speed signal
    • Rear LH wheel speed signal
    • Rear RH wheel speed signal
    • Steering assistance torque request signal
    • Yaw rate signal
    • Side G signal
  • For detailed installation location, refer to Component Parts Location .

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ECM
  • Transmits mainly the following signal to EPS control unit via CAN communication.
    • Engine speed signal
  • For detailed installation location, refer to Component Parts Location .

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Combination meter
  • Receives mainly the following signals from EPS control unit via CAN communication.
    • EPS warning message signal
  • For detailed installation location, refer to Component Parts Location .

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Steering column control module
  • Transmits mainly the following signals to EPS control unit via CAN communication.
    • Steering angle sensor signal
  • For detailed installation location, refer to Component Parts Location .

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Electronic ignition switch control unit
  • Transmits mainly the following signal to EPS control unit via CAN communication.
    • Ignition switch ON signal
    • Battery voltage signal
  • For detailed installation location, refer to Component Parts Location .

SYMBOL

Sonar control unit
  • Transmits mainly the following signals to EPS control unit via CAN communication.
    • Park assist status signal
    • Steering angle command signal
  • Receives mainly the following signals from EPS control unit via CAN communication.
    • EPS control unit status signal
  • For detailed installation location, refer to Component Parts Location .

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EPS actuator

EPS Control Unit, EPS Actuator 

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EPS torque sensor

EPS Torque Sensor 

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EPS control unit

EPS Control Unit, EPS Actuator 
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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.