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Home >> Infiniti >> 2011 >> M37 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0460 To P1235 >> DTC P0506: ISC System >> DTC Logic >> DTC Confirmation Procedure
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DTC Confirmation Procedure

  1. PRECONDITIONING

    If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

    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.

      If the idle speed is out of the specified value, perform  "WORK PROCEDURE ", before conducting DTC Confirmation Procedure. 

      TESTING CONDITION: 

      • Before performing the following procedure, confirm that battery voltage is more than 11 V at idle. 
      • Always perform the test at a temperature above -10°C(14°F). 

      GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE
    1. Start engine and warm it up to normal operating temperature.
    2. Turn ignition switch OFF and wait at least 10 seconds.
    3. Turn ignition switch ON.
    4. Turn ignition switch OFF and wait at least 10 seconds.
    5. Restart engine and run it for at least 1 minute at idle speed.
    6. Check 1st trip DTC.

      Is 1st trip DTC detected? 

      YES: Go to "DIAGNOSIS PROCEDURE ".

      NO: INSPECTION END