Mercedes w210 EZS swap issue

[McDowell]

Hello mates,

I have the following EZS unit not working on bench,

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I change both 1D69J to a one 100% working one and still not working, so I solder donor 1D69J to the ori not working and now it´s working.

Problem is information because I checked the key and it looks ok.

Have you had this issue before? Any ideas how to fix it?

Thank you so much in advance.

[McDowell]

No one? thanks