How VVDI MB Fix Mercedes Vito Key not Sync to EIS?

Question:

l have situation with Mercedes Vito (w639, 2008). Only 1 Key stopped starting, remote is still working. I checked with VVDI MB BGA, see screens. Can l program new key on bench or do more diagnostic?

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Here is the Answer:

Add key on bench by VVDI MB.

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To connect extra power supply, 3 wires are required as diagram.

 

Done!

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