2007 Lexus ES 350FACTORY OEM SERVICE PROCEDURE

DTC Check / Clear

  1. CHECK DTC 
    1. DTCs which are stored in the TCM can be displayed with the intelligent tester.

      These scan tools can display pending DTCs and current DTCs. Some DTCs are not stored if the TCM doesn't detect a malfunction during consecutive driving. However, the malfunction detected while a driving is stored as a pending DTC.

      1. Connect the intelligent tester to the Controller Area Network Vehicle Interface Module (CAN VIM). Then connect the CAN VIM to the Data Link Connector 3 (DLC3).
        Fig 1: Connecting Intelligent Tester To DLC3
        G05247599Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Turn the engine switch on (IG).
      3. Enter the following menus: DIAGNOSIS / OBD / MOBD / ECT / DTC INFO / CURRENT CODES (or PENDING CODE).
      4. Confirm the DTCs and freeze frame data and then write them down.
      5. Confirm the details of the DTCs (See DIAGNOSTIC TROUBLE CODE CHART  ).
        NOTE: When a symptom has been duplicated using normal mode, use the intelligent tester to check for DTCs. For DTCs that are subject to "2-trip detection logic", perform the following steps:

        Turn the engine switch OFF after the symptom has occurred once. Repeat the process of attempting to duplicate the symptom. When the problem or symptom happens for the second time and a DTC has been recorded, the MIL will illuminate, and the code will be stored.

  2. CLEAR DTC 
    1. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
    2. Turn the engine switch on (IG).
    3. Enter the following menus: DIAGNOSIS / OBD / MOBD / ECT / DTC INFO / CLEAR CODES and press YES.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.