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Home >> Lexus >> 2007 >> LS 460 >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 76 (Engine Control System - DTC) >> DTC P1564: ASCD Steering Switch >> Diagnostic Procedure >> 2. Check ASCD Steering Switch Ground Circuit For Open And Short
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2. Check ASCD Steering Switch Ground Circuit For Open And Short

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition switch OFF.
  2. Disconnect combination switch harness connector M102.
  3. Disconnect ECM harness connector.
  4. Disconnect TCM harness connector.
  5. Check harness continuity between combination switch terminal 15 and ECM terminal 67, TCM terminal 42.

    Refer to WIRING DIAGRAM.

    1. Continuity should exist. 
  6. Also check harness for short to ground or short to power.

OK or NG 

  1. OK: GO TO 4 .
  2. NG: GO TO 3.
Fig 1: ASCD Steering Switch
G00877638Courtesy of NISSAN MOTOR CO., U.S.A.