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Home › Infiniti › 2006 › QX56 AWD › Repair and Diagnosis › Engine Performance › System › Engine Control System - DTCS P1225 To P2A03 › DTC P1574 ASCD Vehicle Speed Sensor › Diagnostic Procedure

Diagnostic Procedure

  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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