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NORMAL Mode Diagnostic Trouble Code Retrieval

  1. Connect Toyota hand-held tester or scan tool to Data Link Connector (DLC) No. 3. See Figure. Turn ignition on with engine off. Turn hand-held tester or scan tool on. Using hand-held tester or scan tool manufacturer's instructions, check for DTCs and freeze frame data.
  2. If hand-held tester or scan tool does not display UNABLE TO CONNECT TO VEHICLE, go to next step. If hand-held tester or scan tool displays UNABLE TO CONNECT TO VEHICLE, check DLC No. 3. See DATA LINK CONNECTOR NO. 3 INSPECTION  under SCAN TOOL PROBLEMS.
  3. Record any DTCs and freeze frame data displayed for system diagnosis. If driveability problem exists and no DTCs are present, go to TROUBLE SHOOTING - NO CODES article for diagnosis by symptom. If no DTCs are present and no driveability problem exists but Malfunction Indicator Light (MIL) is illuminated, a problem may exist in the Hybrid Vehicle (HV) control system. Consult authorized dealer for diagnosis of HV control system.
  4. If any DTCs are present, perform appropriate DTC test listed under DIAGNOSTIC TESTS. For DTC descriptions, see DIAGNOSTIC TROUBLE CODE DEFINITIONS  table under DIAGNOSTIC TROUBLE CODE DEFINITIONS. For information on freeze frame data, see FREEZE FRAME DATA . For information on two-trip detection logic DTCs, see TWO-TRIP DETECTION LOGIC .
  5. After repairs for DTC have been completed, DTC must be cleared from ECM. See CLEARING DIAGNOSTIC TROUBLE CODES . Road test vehicle to ensure all symptoms and/or complaints have been repaired.
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