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Home >> Nissan-Datsun >> 2009 >> Quest Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1211 To P2A03 >> DTC P1574 ASCD Vehicle Speed Sensor >> Diagnosis Procedure

Diagnosis 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 or TROUBLE DIAGNOSIS .

    OK or NG 

    OK: INSPECTION END 

    NG: Repair or replace.

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