Pre-Check

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Part 5:

HINT: The rolling code is the code changing at each time when the wave is transmitted from the transmitter and changing when the wave is synchronized between transmitter side and ECU side.

When the rolling code is not synchronized between the transmitter and ECU, a symptom of "Only LOCK operation is available." appears.

In this case, it goes back to normal by synchronizing the rolling code (The method to synchronize it is the same as of the registration of the recognition code.).