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Home >> Nissan-Datsun >> 2005 >> Quest SL >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> 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 FUNCTION FOR A/T SYSTEM - 4 SPEED or OBD-II FUNCTION FOR A/T SYSTEM - 5 SPEED .

    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 - ABS/TCS SYSTEM " or "TROUBLE DIAGNOSIS - ABS/TCS/VDC SYSTEM "

    OK or NG

    • OK: INSPECTION END 
    • NG: Repair or replace.