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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Theft Deterrent / Keyless Entry) >> Engine Immobilizer System >> DTC B2790: ID BOX EEPROM Malfunction >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If the ID code box (immobilizer code ECU) is replaced, register the ECU code and ECU communication ID (See REGISTRATION  ).
  1. REPLACE ID CODE BOX (IMMOBILIZER CODE ECU) 
    1. Replace the ID code box (immobilizer code ECU) (See REMOVAL  ).
  2. ECU CODE REGISTRATION 
    1. Register the ECU code (See REGISTRATION  )
  3. ECU COMMUNICATION ID REGISTRATION 
    1. Register the ECU communication ID (See REGISTRATION  )

    NEXT: END (ID CODE BOX (IMMOBILIZER CODE ECU) IS DEFECTIVE)