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Home › Nissan-Datsun › 2004 › Quest SL › Repair and Diagnosis › Engine Performance › System › Engine Control System › 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) or 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 or TROUBLE DIAGNOSIS .

    OK or NG 

    1. OK: INSPECTION END 
    2. NG: Repair or replace.
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