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Home >> Infiniti >> 2022 >> QX55 Essential >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter, Warning Lamp & Indicator (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC U102B-87: M-Can Communication System >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

  1. CHECK SELF DIAGNOSTIC RESULT 

    Check if any DTC other than "U102B-87" is detected in "Self Diagnostic Result" mode of "MULTI AV".

    Is any DTC detected?

    YES

    Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to DTC Index .

    NO

    Replace AV control unit. Refer to Removal and Installation .