DTC 1-2: Option Configuration Error: Procedure
- CHECK MAYDAY ECU ASSEMBLY
- Press the "SERVICES" button and check the LEXUS Link condition with the LEXUS Link call center.
OK
System operates normally.
NG
Current DTC 1-2 exists.
NOTE:If replacement of the ECU is necessary, replace the mayday battery (backup battery) together with the ECU. After the replacement, register the ECU. Refer to REGISTRATION .
NG → See step 2
OK → END
- Press the "SERVICES" button and check the LEXUS Link condition with the LEXUS Link call center.
- REPLACE MAYDAY ECU ASSEMBLY. Refer to REMOVAL