Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.

CHECK MAYDAY ECU
1. Press the SERVICES button and check the LEXUS Link condition with the LEXUS Link call center
  OK: System operates normally.
  
  NG:
  
  System does not connect to LEXUS Link call center. (Current DTC 1-2 exists.)
  
  NG: REPLACE MAYDAY ECU TOGETHER WITH MAYDAY BATTERY AND THEN PERFORM REGISTRATION
  
  OK: END