fiat punto bcm swapping

[KILL_THE_IMMO]

hi all dk members,

i have a fiat punto year 2004 that ecu is broken , so ro fix problem i bought ecu+bcm+key from a same car
finally car work but no code light, no check engine , no direction light no city light in the dash
i swapp eprom to the old bcm all light working but car dont work and code light stay on
and when i diagnose it it write me can communication problem (code not received to ecu)
i need ur help to fix that and thanks

[Milkman]

Maybe you should try to do Proxy alignment.

[KILL_THE_IMMO]

how can i do that??

[kanzus]

Have same problem.
Must perform proxy alignement with fiatecuscan or similar.
Dash BSI ans ecu must be well coded with keys.