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Home >> Toyota >> 1997 >> Supra 3.0 D, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Engine Control System Tests W/Codes - Introduction) >> Self-Diagnostic System >> Retrieving Diagnostic Trouble Codes >> NORMAL Mode Code Retrieval

NORMAL Mode Code Retrieval

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 1998 Toyota Tercel, 1998 Toyota Tacoma, 1998 Toyota T100, 1998 Toyota Supra, and 1998 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect scan tool to Data Link Connector (DLC) No. 3. See 1 in TESTS W/CODES article. 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 DTC test under DIAGNOSTIC TESTS in TESTS W/CODES article. See DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION  table. For more information on freeze-frame data, see FREEZE-FRAME DATA  under INTRODUCTION. For information on 2-trip detection logic codes, see TWO-TRIP DETECTION LOGIC  under INTRODUCTION.
  5. After repairs for DTC have been completed, DTCs must be cleared from ECM memory. See CLEARING DIAGNOSTIC TROUBLE CODES . Road test vehicle to ensure all symptoms and/or complaints have been repaired.
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