Fiat Grande Punto 1.3 75hp error U1706

hi all!
Are two days that I fight against this problem...
describe briefly the problem:
the car comes with the ecu tampered with, I can start the bike by fixing the ecu and doing the partial...
can I encode the injectors and forth without problems, except for the battery completely to the ground.
Change the battery in and out the problems...I have no idea what they have done.
diagnosis errors are the following

Ecu engine:
U1706 Can Network (NCM-NFR)

Body Computer:
U1701 Ncm
B1053 NCM inertial Switch
U1715 Node Yaw
U1706 Brake System
U1702 electric Steering (NGE)
U0019 Line B-Can

Framework tools:
U1019 Can Cable
U1700 Central Computer
U1701Ncm
U1706 Node Brake

In the framework remain flicked the lights on: ABS,ESP, Brake and anti-skid
Power steering does not work
I tried to rialineare all the ecu but nothing to do
Checked all fuses all ok...
to someone ? gi? experienced something similar?

thank you for your attention!

hello, I try to start the bike and disconnect a battery terminal if the engine is switched off and the alternator is not charging and you d this problem await news

performed test alternator all ok
tried with various diagnoses to perform network alignment
texa everything is ok
brainbee node is not configurable
wow error alignment

hello I do not do, with its as and was advised to disconnect the battery with the engine running the alternator should be checked with appropriate instruments

I fully agree, these tests you could do on the 127, but not even enough to have a tester....!! however, check the power supply and the masses on the ABS, and check the CAN Line from the ODB.

Sorry, OBD.

Hello on these cars often damages the earth cable on the gearbox since ? too short, it seems that it is ok instead of damage

I update the post:
wiring body-abs body-power steering completely rebuilt...and the problem doesn't it ? most presented
thanks to all

ok, the important ? risolvere...............