Retrieving/Clearing Diagnostic Trouble Codes

1996 Ford Crown Victoria Police Interceptor, 4.6 9SECTION Retrieving/Clearing Diagnostic Trouble Codes
  1. Perform New Generation Star (NGS) tester hookup and vehicle selection. See NEW GENERATION STAR (NGS) TESTER USAGE  .
  2. The ignition switch must be in the RUN position or test will fail. Rotate dial to menu item Diagnostic Data Link and press trigger.
  3. Select module to test by rotating dial to highlight module and press trigger.
  4. Menu item Diagnostic Test Modes is highlighted. Press trigger.
  5. Rotate dial to menu item Retrieve/Clear Continuous DTC, press trigger, then press start (Button 3). Note DTCs and go to DIAGNOSTIC TROUBLE CODE DEFINITIONS. 
  6. Clear individual DTC from selected module, highlight DTC by rotating dial then press Button 8.
  7. Clear all DTCs from selected module, press Button 7.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.