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Home >> Infiniti >> 2014 >> Q50 Base, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Introduction) (Except Hybrid) >> System Description >> Operation >> Automatic Speed Control Device (ASCD) >> AUTOMATIC SPEED CONTROL DEVICE (ASCD): Switch Name and Function
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AUTOMATIC SPEED CONTROL DEVICE (ASCD): Switch Name and Function

Functions of each switch are listed in the following table.

Fig 1: Identifying Automatic Speed Control Device Switches And Function
G09159981Courtesy of NISSAN NORTH AMERICA, INC.
No. Name Function
(1) CANCEL switch When the switch is pressed, the ASCD control is cancelled.
(2) RESUME/ACCEL switch
  • When the switch is pressed after the cruise control is cancelled in any method other than main switch operation, the vehicle speed is reset to the previous speed setting before the cancellation(1).
  • When the switch is pressed during cruise control, the setting speed is increased and the vehicle speed increases.
(3) SET/COAST switch
  • When the switch is pressed at the preferred vehicle speed, the cruise control starts to operate.
  • When the switch is pressed during cruise control, the set speed is reduced and the vehicle speed reduces.
(4) ASCD MAIN switch Turns the ASCD ON/OFF.
(1) To reset vehicle speed, the vehicle condition must be as follows:

  • Brake pedal is released
  • Selector lever is in a position other than P, R, and N.
  • Vehicle speed is greater than 40 km/h (25 MPH) and 144 km/h (89 MPH)