I have the same exact problem.
I couldn't lock the door from either with remote or with unlock button.

Did research from here, got DLA from Tischer, and put them on.
It wasn't too hard. Just note it took them two weeks to deliver
Unfortunately, it didn't fix the problem.
Two possibilities.

1. Bad Part From Tischer
2. Electrical Module Needs reprogramming?

What do you think I should do?
FYI I start having many problem after replacing Driver's window regulator. I had to replace the switch, and replaced entire cable assembly.