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Home >> Infiniti >> 2012 >> M37 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0460 Through P1217 >> DTC P0506: ISC System >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK INTAKE AIR LEAK 
    1. Start engine and let it idle.
    2. Listen for an intake air leak after the mass air flow sensor.

      Is intake air leak detected? 

      YES: Discover air leak location and repair.

      NO: GO TO 2.

  2. REPLACE ECM 
    1. Stop engine.
    2. Replace ECM.
    3. Go to "WORK PROCEDURE ".

      : INSPECTION END

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