FixVault

DTC Detection Logic

NOTE:
  • If DTC P1574 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.
  • If DTC P1574 is displayed with DTC P0500, first perform the trouble diagnosis for DTC P0500. Refer to DTC LOGIC .
  • If DTC P1574 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to DTC LOGIC .
  • If DTC P1574 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer to DTC LOGIC .
DTC DETECTION LOGIC TABLE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1574 ASCD vehicle speed sensor ECM detects a difference between two vehicle speed signals is out of the specified range.
  • Harness or connectors (The CAN communication line is open or shorted.)
  • Unified meter and A/C amp.
  • ABS actuator and electric unit (control unit)
  • Wheel sensor
  • TCM
  • ECM