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Home >> Infiniti >> 2021 >> QX50 Sensory, FWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (1 Of 3) >> System Description >> System >> Automatic Speed Control Device (ASCD) >> System Description >> System Diagram

System Diagram

GNSILL0180595-595Courtesy of NISSAN NORTH AMERICA, INC.

Component parts

Function

Brake pedal position switch

Stop Lamp Switch and Brake Pedal Position Switch 

Stop lamp switch

Stop Lamp Switch and Brake Pedal Position Switch 

ASCD steering switch

ASCD Steering Switch 

Transmission range switch

It transmits the park/neutral position signal.

TCM

It transmits the output shaft speed signal to ECM via CAN communication.

Combination meter

  • It transmits the vehicle speed signal to ECM via CAN communication.
  • It receives the ASCD status signal from ECM via CAN communication.

ABS actuator and electric unit

ECM

ECM 

Electric throttle control actuator

Electric Throttle Control Actuator