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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 891 (Engine Control System (Diagnostic Codes & Symptom Tests)) >> DTC/Circuit Diagnosis >> DTC P1564: ASCD Steering Switch >> On Board Diagnosis Logic

On Board Diagnosis Logic

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If DTC P1564 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to P0605 ECM .
DTC No. Trouble Diagnosis Name DTC Detecting Condition Possible Cause
P1564
1564
ASCD steering switch
  • 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 (The switch circuit is open or shorted.)
  • ASCD steering switch
  • Combination switch (spiral cable)
  • ECM