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Home >> Infiniti >> 2012 >> EX35 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 64 (Engine Control System - DTCS P0451 To P1212) >> P0506 ISC System >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2008 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.
  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 "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : SPECIAL REPAIR REQUIREMENT ".

    INSPECTION END

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