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Inspection Procedure

  1. RESET MAYDAY ECU ASSEMBLY 
    1. Exit diagnosis mode and wait for 10 seconds.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for 10 minutes.
    3. Reconnect the cable to the negative (-) battery terminal, and wait for 10 seconds.
    4. Turn the ignition switch ON, and then check for the current DTC again.

      Result 

    RESULT REFERENCE

    Result Proceed to
    Current DTC 2-3 or 2-4 exists A
    Historic DTC 2-3 or 2-4 exists B
    NOTE: If replacement of the ECU is necessary, replace the mayday battery (backup battery) together with the ECU. After the replacement, register the ECU (See REGISTRATION  ).

    B: CLEAR HISTORIC DTC 

    A: REPLACE MAYDAY ECU ASSEMBLY (See  REMOVAL   ) 

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