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Clearing Diagnostic Trouble Codes

WARNING: This page is about a different car, the 1999 Mazda B4000, 1999 Mazda B3000, and 1999 Mazda B2500. However, it is still accessible from the selected car via links, so may be relevant.
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 or the test will fail.
  1. Connect New Generation Star (NGS) tester to Data Link Connector (DLC) and perform proper hookup procedure. See EQUIPMENT HOOKUP .
  2. Turn ignition switch to ON position, unless otherwise instructed by specified test procedure. Rotate dial on NGS tester to select DIAGNOSTIC DATA LINK menu and press trigger.
  3. Rotate dial on NGS tester to highlight the desired module you wish to access. Ensure DIAGNOSTIC TEST MODES is highlighted and press trigger.
  4. Rotate dial on NGS tester to highlight RETRIEVE/CLEAR CONTINUOUS DTC and press trigger. Press button No. 7 to initiate procedure.
  5. To clear an individual DTC from a selected module, rotate dial on NGS tester to highlight the DTC to be cleared. Press button No. 8. This will clear only that DTC from 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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