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.

REPLACE MAYDAY BATTERY (BACKUP BATTERY)
1. Replace the mayday battery.
2. Perform registration (see REGISTRATION ).
3. Check for DTC again (see DTC CHECK / CLEAR )
  OK: Current DTC 6-1 is not output.
  
  NG: PERFORM REGISTRATION AGAIN (See REGISTRATION )
  
  OK: CLEAR HISTORIC DTC (See DTC CHECK / CLEAR )