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Home >> Infiniti >> 2012 >> M37 Base >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Security Control System (With Intelligent Key System) >> DTC/Circuit Diagnosis >> DTC B2557: Vehicle Speed >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK DTC OF "ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)" 

    Check DTC in "Self Diagnostic Result" mode of "ABS" using CONSULT.

    Is DTC detected? 

    YES: Perform the trouble diagnosis related to the detected DTC. Refer to "DTC INDEX ".

    NO: GO TO 2.

  2. CHECK DTC OF "COMBINATION METER" 

    Check DTC in "Self Diagnostic Result" mode of "METER/M&A" using CONSULT.

    Is DTC detected? 

    YES: Perform the trouble diagnosis related to the detected DTC. Refer to "DTC INDEX ".

    NO: GO TO 3.

  3. CHECK INTERMITTENT INCIDENT 

    Refer to "INTERMITTENT INCIDENT ".

    : INSPECTION END

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