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Clearing Diagnostic Trouble Codes

WARNING: This page is about a different car, the 1997 Mercury Grand Marquis and 1997 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect New Generation Star (NGS) scan tester on Data Link Connector (DLC) and perform proper hook-up procedure. See EQUIPMENT HOOK-UP.
    NOTE: If instructed to clear Diagnostic Trouble Codes (DTCs) from a specified test procedure, ensure ignition is in proper position as listed in test procedure.
  2. Turn ignition switch to RUN position unless otherwise instructed by specified test procedure. Rotate dial on scan tester to DIAGNOSTIC DATA LINK menu and press trigger.
  3. Rotate dial on scan tester to highlight the desired module you wish to access. Ensure DIAGNOSTIC TEST MODES is highlighted and press trigger.
  4. Rotate dial on scan tester to highlight RETRIEVE/CLEAR CONTINUOUS DTC and press trigger. Press button No. 3 to start.
  5. To clear an individual DTC from a selected module, rotate dial on scan tool to highlight the DTC to be cleared. Press button No. 8. This will clear only that DTC from that module.
  6. To clear all DTCs from a selected module, press button No. 7. This clears all DTCs from that module.
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