LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 1995 >> Avalon XL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Testing >> Code P0401 - Insufficient Exhaust Gas RECIRCULATION Flow Detected >> Test Drive Confirmation
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test Drive Confirmation

  1. Connect scan tester. See Figure. Start and warm engine to normal operating temperature. Operate vehicle at 43-56 MPH for 3 minutes or more. Stop vehicle and allow to idle for about 2 minutes. Turn ignition off.
  2. Start engine and allow to idle. Operate vehicle at 43-56 MPH for 3 minutes or more. Stop vehicle and allow to idle for about 2 minutes.
  3. Check "Readiness Tests". May also be known as I/M flag. If COMPL is displayed on scan tester and MIL is not illuminated, system is normal. If INCPL is displayed and MIL is not illuminated, repeat test drive procedure.
scientia non olet · About LEMON Manuals