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DTC 1-2 Option Configuration Error: Description

This DTC is output if the mayday ECU assembly has a writing error while downloading information from the LEXUS Link call center.

DTC DETECTION CONDITION

DTC No. DTC Detection Condition Trouble Area
1 - 2 Mayday ECU has writing error of information from LEXUS Link call center Mayday ECU assembly
  1. CHECK MAYDAY ECU ASSEMBLY 
    1. 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. 

    NG: REPLACE MAYDAY ECU ASSEMBLY TOGETHER WITH MAYDAY BATTERY AND THEN PERFORM  REGISTRATION  

    OK: END