Tried different ecu now some things not working

[Boss260]

I had issues with a 2012 308 that turned out to be water in the fuse box. However I switched the ecu with another 308 I had, as apart of diagnosing the problem. After changing the ecu's back over the gear selection is not showing on the dash cluster, rear reverse sensors aren't working and auto wipers. I have check on my diagnostic tool and it is reading which gear is selected. All reversed sensors settings are turned on and working. I have checked fuses also. Thanks for reading

 

[Shaggy]

the gear selection is not showing on the dash cluster, rear reverse sensors aren't working and auto wipers.

When ECUs get swapped around on these the car's configuration can get mixed up, so things like the gear display, parking sensors and auto wipers stop showing even though the parts themselves work. I'd have someone with Diagbox redo the configuration for the BSI and the cluster. Was it the engine ECU or the BSI you swapped?