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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1161 (Engine Control System - DTCS P1550 To P2A03) >> DTC P1564 ASCD Steering Switch >> On Board Diagnosis Logic

On Board Diagnosis Logic

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

This self-diagnosis has the one trip detection logic. 

The MIL will not light up for this diagnosis. 

NOTE: If DTC P1564 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to DTC P0605 ECM .
DTC DETECTING CONDITION POSSIBLE CAUSE

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.)

  • ECM
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