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HOMESERVICE MANUALSLEXUS2005ES 330REPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISSFI SYSTEM - DIAGNOSTICSDTC CHECK/CLEAR
2005 Lexus ES 330

DTC Check/Clear

2005 Lexus ES 330SECTION DTC Check/Clear
NOTE:
  • If no DTC appears in normal mode:

    On the OBD II scan tool or the hand-held tester, check the pending fault code using the Continuous Test Results function (Mode 7 for SAE J1979).

  • When the diagnosis system is changed from normal mode to check mode or vice-versa, all DTCs and freeze frame data recorded in normal mode will be erased. Before changing modes, always check and make a note of DTCs and freeze frame data.
  1. CHECK DTC (Using the OBD II scan tool or hand-held tester) 
    1. Connect the OBD II scan tool or hand-held tester to the DLC3.
    2. Turn the ignition switch to ON.
    3. Use the OBD II scan tool or the hand-held tester to check the DTCs and freeze frame data and then write them down. For the hand-held tester, select the item: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES. For the OBD II scan tool, see its instruction manual.
    4. See CHECK MODE PROCEDURE  to confirm the details of the DTCs.
      Fig 1: Connecting Hand-Held Tester To DLC3 To Check DTC
      G02937436Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE:
    • When simulating a symptom with the OBD II scan tool (excluding hand-held tester) to check DTCs, use normal mode. For DTCs subject to "2 trip detection logic", perform either of the following actions.
    • Turn the ignition switch to OFF after the symptom is simulated once. Then repeat the simulation process again. When the problem has been simulated again, the MIL illuminates and the DTCs are recorded in the ECM.
    • Check the pending fault code using the Continuous Test Results function (Mode 7 for SAE J1979) on the OBD II scan tool.
  2. CLEAR DTC (Using the OBD II scan tool or hand-held tester) 
    1. Connect the OBD II scan tool or the hand-held tester to the DLC3.
    2. Turn the ignition switch to ON.
    3. Erase DTCs and freeze frame data with the OBD II scan tool (complying with SAE J1978) or the hand-held tester. For the hand-held tester: 1) enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CLEAR CODES; and 2) press YES. For the OBD II scan tool, see its instruction manual.
  3. CLEAR DTC (Not using the OBD II scan tool or hand-held tester) 
    1. Remove the EFI and ETCS fuse from the engine room J/B for more than 60 seconds, or disconnect the battery cable for more than 60 seconds. When disconnecting the battery cable, perform the "INITIALIZE" procedure (see ON-VEHICLE INSPECTION ).
RENDER: 1.0x

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

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