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Home >> Nissan-Datsun >> 2014 >> Sentra S, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes & Symptom Tests) >> DTC/Circuit Diagnosis >> DTC P1564: ASCD Steering Switch >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

NOTE: If DTC P1564 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to "DTC LOGIC ".
DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause
P1564 ASCD SW (ASCD SW)
  • An excessively high voltage signal from the ASCD steering switch is sent to ECM.
  • ECM detects that input signal from the ASCD steering switch is out of the specified range.
  • ECM detects that the ASCD steering switch is stuck ON.
  • Harness or connectors (ASCD steering switch circuit is open or shorted.)
  • ASCD steering switch
  • ECM