ABS ESP invalid data and lost communication codes

[shan092009]

Hi everyone. I am new on this forum looking for some help. I bought a peugeot 2008 year 2018 from an ouction which has only done 12K miles. The car was dead. After some detective work we found out that ecu was burnt and no one was able to clone/programe replacement ecu apart from main dealer. We chose to get immo off ecu. The car starts and drive fine but it has fault codes
Main ecu U1213 81. U1113 87. P2088 11.(all permanent)
ABS Module codes U1108. U1208 (both intermittent) I have also attached the pictures of the faults on the computer
A technician has said that ecu is faulty, but the person who sold the ECU has said that ECU dint have any faults when he tested it on the bench. Now I was wondering could it be the wiring or the ABS module itself. I dont know if burnt ecu has caused damage to other systems in the car. The old ecu is burnt quite badly and some of the components have fallen off the PCB and these is a hole in the PCB where it burnt from. I have also attached the picture of the old ECU.