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Home >> Infiniti >> 2003 >> FX45 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1574: Automatic Speed Control Device (ASCD) Vehicle Speed Sensor >> DTC Confirmation Test
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DTC Confirmation Test

  1. Start engine (VDC switch off). Select DATA MONITOR with scan tool.
  2. Drive vehicle at more than 25 MPH. If easier, lift drive wheels.
  3. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE  . If 1st trip DTC is not detected, system is okay at this time.
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