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Home >> Infiniti >> 2022 >> QX50 Essential, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 18 (Chassis Control) >> Chassis Control >> System Description >> System >> System Description >> Input Signal And Output Signal

Input Signal And Output Signal

WARNING: This page is about a different car, the 2021 Infiniti QX50. However, it is still accessible from the selected car via links, so may be relevant.

Major signal transmission between each unit via communication lines is shown in the following table.

Component parts

Signal description

ECM

Mainly transmits the following signals to chassis control module via CAN communication.

  • Accelerator pedal position signal
  • ECM malfunction signal
  • Engine status signal
  • Engine speed signal
  • Estimate drive torque signal
  • Request drive torque signal
  • Request drive torque status signal
  • Shift position signal

ABS actuator and electric unit (control unit)

Mainly transmits the following signals to chassis control module via CAN communication.

  • ABS malfunction signal
  • ABS operation signal
  • Automatic brake hold malfunction signal
  • Automatic brake hold permission signal
  • Automatic brake hold status signal
  • Brake hold status signal
  • Brake fluid pressure signal
  • Decel G signal
  • EBD malfunction signal
  • EBD operation signal
  • Front LH wheel speed signal
  • Front RH wheel speed signal
  • hill start assist display request signal
  • Rear LH wheel speed signal
  • Rear RH wheel speed signal
  • Side G signal
  • Slope signal
  • Steering angle signal
  • TCS malfunction signal
  • TCS operation signal
  • VDC accept permission signal
  • VDC malfunction signal
  • VDC OFF switch signal
  • VDC operation signal
  • Vehicle speed signal
  • Yaw rate signal

BCM

Mainly transmits the following signals to chassis control module via CAN communication.

  • BCM malfunction signal
  • Brake pedal position switch signal
  • Stop lamp switch signal
  • Turn indicator signal
  • Turn signal switch signal

TCM

Mainly transmits the following signals to chassis control module via CAN communication.

  • Current gear position signal
  • CVT accept permission signal
  • CVT target gear ratio signal
  • Input speed signal
  • Shift position signal
  • TCM malfunction signal

Combination meter

Mainly transmits the following signals to chassis control module via CAN communication.

  • Active engine brake setting change request signal
  • Active trace control setting change request signal
  • Combination meter malfunction signal
  • Seat belt buckle switch LH signal

Mainly receives the following signals from chassis control module via CAN communication.

  • Active engine brake display request signal
  • Active engine brake setting display request signal
  • Active ride control display request signal
  • Active trace control display request signal
  • Active trace control setting display request signal
  • Automatic brake hold indicator lamp signal
  • Chassis control malfunction display request signal
  • Curve display request signal
  • hill start assist display signal
  • Meter display signal
  • Tire display request signal

Steering angle sensor

Mainly transmits the following signals to chassis control module via CAN communication.

  • Steering angle sensor signal

Electric parking brake control module

Mainly transmits the following signals to chassis control module via CAN communication.

  • Automatic brake hold prohibition signal
  • Automatic brake hold malfunction signal
  • Brake system warning lamp signal
  • Electric parking brake operation signal (switch)
  • Electric parking brake status signal

Display control unit

Mainly transmits the integral switch selection signals to chassis control module via CAN communication.

Integral switch

Transmits each system selection signal to the display control unit.



Major signal transmission between each unit via communication lines is shown in the following table.

Component parts

Signal description

ECM

Mainly transmits the following signals to chassis control module via CAN communication.

  • Accelerator pedal position signal
  • Engine speed signal
  • Estimate drive torque signal
  • Request drive torque signal
  • Request drive torque status signal

ABS actuator and electric unit (control unit)

Mainly transmits the following signals to chassis control module via CAN communication.

  • Front LH wheel speed signal
  • Front RH wheel speed signal
  • Rear LH wheel speed signal
  • Rear RH wheel speed signal
  • TCS operation signal
  • VDC operation signal
  • Side G signal
  • Brake fluid pressure signal
  • Steering angle signal
  • VDC accept permission signal

Mainly receives the following signals from chassis control module via CAN communication.

  • Active trace control signal

BCM

Mainly transmits the following signals to chassis control module via CAN communication.

  • Stop lamp switch signal

TCM

Mainly transmits the following signals to chassis control module via CAN communication.

  • Current gear position signal
  • CVT target gear ratio signal

Combination meter

Mainly receives the following signals from chassis control module via CAN communication.

  • Curve display request signal
  • Tire display request signal
  • Active trace control setting display request signal
  • Chassis control malfunction display request signal

Steering angle sensor

Mainly transmits the following signals to chassis control module via CAN communication.

  • Steering angle sensor signal