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Section 599 (Engine Immobilizer System - Diagnosis): Pre-Check

WARNING: This page is about a different car, the 2002 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. DTC CHECK (Using LEXUS hand-held tester). 
    1. Prepare the LEXUS hand-held tester.
    2. Connect the LEXUS hand-held to DLC3.
    3. Turn the ignition switch ON and the LEXUS hand-held tester main switch ON.
    4. Use the LEXUS hand-held tester to check the DTCs, note them down. (For opening instructions, see the LEXUS hand-held tester's instruction book).
    5. See DIAGNOSTIC TROUBLE CODE INDEX  table, to confirm the details of the DLC3.
      6. Fig 1: Connecting LEXUS Hand-Held To DLC3
      G03150031Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. DTC CLEARANCE. 
    • PRESENT CODE:  DTC will be cleared when the trouble output as DTC is recovered normally.
    • PAST CODE:  Clear it using the LEXUS hand-held tester.
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