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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 117 (Engine Control System (DTC/Circuit Diagnosis) (VQ35DE) (Except Hybrid) (2 Of 3)) >> DTC/Circuit Diagnosis >> DTC P0506: ISC System >> Diagnosis Procedure >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

  1. CHECK INTAKE AIR LEAKAGE

    1. Start engine and let it idle.
    2. Listen for an intake air leakage after the mass air flow sensor.

    Is intake air leakage detected?

    YES 

    Discover air leakage location and repair.

    NO 

    Replace ECM. Refer to REMOVAL AND INSTALLATION .

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