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Home >> Infiniti >> 2003 >> FX45 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1572: Automatic Speed Control Device (ASCD) Brake Switch >> 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 for at least 5 seconds at more than 19 MPH. This step may be performed with drive wheels lifted. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE  . If 1st trip DTC is not detected, go to next step.
  3. Drive vehicle for at least 5 seconds at more than 19 MPH. Depress brake pedal for at least 5 seconds but do not slow to less than 19 MPH. 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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