Hi, I'm new here and thanks for accepting me.

"Disclaimer I'm not a certified TMH technician, so do this at you own risk"
Fyi- I end up replacing the Key pad also, as the ribbon cable is very fragile so B-careful ;).

Here is a little contribution to this problem
How I was able to fix the E159 code on the E-pallets jack was, By checking (I did All the other stuff that the manual recommends too) also The 3v coin battery on the ETAC CARD witch it was 0, so I replaced that and problem solved no more E159... Hope this help someone