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Retrieving Diagnostic Trouble Codes

NOTE: Procedure may be used for retrieving continuous Diagnostic Trouble Codes (DTCs).
  1. Connect New Generation Star (NGS) scan tester to the Data Link Connector (DLC) and perform proper hook-up procedure. See EQUIPMENT HOOK-UP  under COMMUNICATION NETWORK DIAGNOSTICS.
  2. Turn ignition switch to ON position unless otherwise instructed. 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. Record all Diagnostic Trouble Codes (DTCs) that are displayed for specified module. Proceed to DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS for DTC identification and reference for proper DTC testing procedure. DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS are listed after TESTING  in this article.