LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 1998 >> LX 470 >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Engine Immobilizer System >> Programming >> Additional Sub-Key Registration >> Using Scan Tool
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Using Scan Tool

  1. Connect scan tool to Data Link Connector (DLC) No. 3. See Figure. Insert registered master key in ignition lock cylinder.
  2. Within 2 minutes of inserting master key into ignition lock cylinder, select SUB-KEY REGISTRATION using scan tool. Within 20 seconds, remove master key from ignition lock cylinder.
  3. Within 10 seconds of removing master key from ignition lock cylinder, insert sub-key to be registered in ignition lock cylinder. Ensure SECURITY indicator light flashes. SECURITY indicator light is located near the clock at the center of instrument panel, just below the stereo. After one minute, additional sub-key should be registered and SECURITY indicator light should turn off.
  4. If registering additional sub-keys, repeat process starting with step 3) within 10 seconds. The registration mode is complete after removing sub-key from ignition lock cylinder and brake pedal is depressed and released once within 10 seconds, or SECURITY indicator has turned off for at least 10 seconds.
scientia non olet · About LEMON Manuals