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Home >> Infiniti >> 2011 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0460 Through P1220 >> DTC P0643: Sensor Power Supply >> DTC Logic >> DTC Confirmation Procedure

DTC Confirmation Procedure

  1. PRECONDITIONING
    1. Turn ignition switch OFF and wait at least 10 seconds.
    2. Turn ignition switch ON.
    3. Turn ignition switch OFF and wait at least 10 seconds.

      TESTING CONDITION: 

      Before performing the following procedure, confirm that battery voltage is 8 V or more at idle. 

      GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE
    1. Start engine and let it idle for 1 second.
    2. Check DTC.

      Is DTC detected? 

      YES: Go to "DIAGNOSIS PROCEDURE ".

      NO: INSPECTION END