Audi Q7 edc17cp04 cheksum

[ziko]

Hi, I have this ecu, car not start
dtc:
2 Faults Found:
005648 - Internal Control Module
P1610 - 007 - Memory Check Sum Error - MIL ON
005648 - Internal Control Module
P1610 - 008 - Memory Check Sum Error - MIL ON

Readiness: 0 0 0 0 1


Anyone can fix it?

[mprog]

Do You make TPROT before write file ?

Tell what interface you read and write this ECU

[ziko]

I not did anything,servicer brings me ecu and told me car not start and has 2 errors
I open and read with ktag

[boomeer]

I not did anything,servicer brings me ecu and told me car not start and has 2 errors
I open and read with ktag

Try write back this file that you read

[ziko]

I put other eep dump then shows +1 error related to cheksum. Also I found same sw version and has only those difference (see image),but after writing flash I read again and there was no any changes in flash, still ori flash remains in ecu.
I use ktag boot mode and CAN L+H to read/write.
Car was not started several days so costumer used extra battery with cables and from that point engine not start

[ziko]

Anyone?

Tnx

[boomeer]

This difference is otp area....
If you have ori in flash and ecu give you same error than you have problems in eeprom

[ziko]

I already put other dump in eep, same errors

[ziko]

I put other ecu and all ok. Opened ori ecu and see water damage inside,cleared but cheksum errors remain.