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Home >> Infiniti >> 2005 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P1574: ASCD Vehicle Speed Sensor >> Diagnostic Procedure

Diagnostic Procedure

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  1. CHECK DTC WITH TCM 

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

    OK or NG 

    1. OK: GO TO 2.
    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 

    1. OK: GO TO 3.
    2. NG: Repair or replace.
  3. CHECK COMBINATION METER FUNCTION 

    Check combination meter function.

    Refer to "COMBINATION METERS ".

    1. INSPECTION END 
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