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Home >> Infiniti >> 2008 >> M45 Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (VK45DE) - DTCS P1550 Through P2A03 >> DTC P1574 ASCD Vehicle Speed Sensor >> Diagnostic Procedure
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Diagnostic Procedure

  1. CHECK DTC WITH TCM 

    Check DTC with TCM. Refer to "OBD-II DIAGNOSTIC TROUBLE CODE (DTC) ".

    OK or NG 

    OK: GO TO  2.

    NG: Perform trouble shooting relevant to DTC indicated.

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

    Refer to "TROUBLE DIAGNOSIS ".

    OK or NG 

    OK: GO TO  3.

    NG: Repair or replace.

  3. CHECK DTC WITH "UNIFIED METER AND A/C AMP." 

    Refer to "UNIFIED METER AND A/C AMP ".

    >> INSPECTION END 

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