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Home >> Infiniti >> 2012 >> QX56 RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1550 To P2A03 >> DTC P1574: ASCD Vehicle Speed Sensor >> Diagnosis Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Diagnosis Procedure

  1. CHECK DTC WITH TCM

    Check DTC with TCM. Refer to "CONSULT FUNCTION (TRANSMISSION) ".

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Perform Diagnosis Procedure corresponding to the DTC indicated.

  2. CHECK DTC WITH "ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)"

    Refer to "CONSULT FUNCTION ".

    Is the inspection result normal? 

    YES: GO TO 3.

    NO: Perform Diagnosis Procedure corresponding to the DTC indicated.

  3. CHECK DTC WITH "COMBINATION METER"

    Refer to "CONSULT FUNCTION ".

    : INSPECTION END

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