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Home >> Infiniti >> 2012 >> M37 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 144 (Audio, Visual & Navigation System (Telematics System)) >> DTC/Circuit Diagnosis >> DTC U1000: Can Comm Circuit >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.
  1. PERFORM SELF-DIAGNOSIS 
    1. Turn the power switch ON and hold it for 2 seconds or more.
    2. ""Check the self-diagnosis result of "TCU".

      Is CAN communication system displayed? 

      YES: Refer to "TROUBLE DIAGNOSIS FLOW CHART ".

      NO: Refer to "INTERMITTENT INCIDENT ".