LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2003 >> IS 300 Base, Standard >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Engine Immobilizer >> Programming >> Additional Sub-Key Registration
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Additional Sub-Key Registration

NOTE:
  • It is possible to register up to 3 sub-key codes including the already registered key code.
  • When any operation time described below is over, registration mode completes.
  • When the next procedure is performed while the timer is working, the timer completes counting time, then next timer starts.

There are 2 ways for registration of an additional sub-key:

  1. Depressing Brake and Acceleration Pedals

    Refer to the flowchart, see Fig 1.

  2. Using Hand-Held Tester

    Refer to the flowchart, see Fig 2.

Fig 1: Identifying Additional Sub-Key Registration Flowchart (Using Brake & Accelerator Pedal)
G00173769Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Identifying Additional Sub-Key Registration Flowchart (Using Hand-Held Tester)
G00173770Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
scientia non olet · About LEMON Manuals