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NORMAL Mode Code Retrieval

  1. Connect scan tool to Data Link Connector (DLC) No. 3. See Figure. DLC No. 3 is located under left side of instrument panel. Turn ignition on with engine off. Turn scan tool on. Using scan tool manufacturer's instructions, check for DTCs and freeze-frame data.
  2. If scan tool displays UNABLE TO CONNECT TO VEHICLE, DLC No. 3 must be checked. See DLC NO. 3 INSPECTION  under SCAN TOOL PROBLEMS. If scan tool does not display UNABLE TO CONNECT TO VEHICLE, go to next step.
  3. Record any DTCs and freeze-frame data displayed for system diagnosis. If driveability problem exists and no DTCs are present, go to TESTS W/O CODES article for diagnosis by symptom.
  4. If any DTCs are present, perform appropriate circuit test. See DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION . For more information on freeze-frame data, see FREEZE-FRAME DATA  under INTRODUCTION. For information on 2-trip detection logic codes, see DETECTION LOGIC  under INTRODUCTION.
  5. After repairs for DTC have been completed, DTCs must be cleared from ECM memory. See CLEARING DIAGNOSTIC TROUBLE CODES .
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