LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2016 >> QX80 Base, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostic Trouble Codes (DTCS) P1553-P26AB And Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC P1568: Intelligent Cruise Control (ICC) Command Signal Value Fault >> DTC Logic >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

NOTE:
  • If DTC P1568 is displayed with DTC UXXXX, perform the trouble diagnosis for DTC UXXXX. 
  • If DTC P1568 is displayed with DTC P0605, perform the trouble diagnosis for DTC P0605. Refer to  DTC LOGIC  .
  • If DTC P1568 is displayed with DTC P0607, perform the trouble diagnosis for DTC P0607. Refer to  DTC LOGIC  . 
DTC No. Trouble diagnosis name
(Trouble diagnosis content)
DTC Detecting Condition Possible Cause
P1568 ICC COMMAND VALUE
(ICC function)
ECM detects a difference between signals from ADAS control unit is out of specified range.
  • Harness or connectors

    (The CAN communication line is open or shorted.)

  • ADAS control unit
  • ECM