Audi A4 MSA15 - 0281001656 028906021GL 24c02 Immo Problem

[Volker]

I have already done some MSA15 successfully, but with one vehicle I have a strange phenomenon.

24c02 on the bottom (in the corner), ImmoOff and soldered again.

Vehicle starts without IMMO Box, no problems.

But now the engine control light flashes and I can't establish a connection with VCDS.

EEPROM broken?
Or do I also have to adjust the EEPROM (also a 24C02, b58328) on the upper side?

I attach IMMOOff files also.

[kiszka]

I have already done some MSA15 successfully, but with one vehicle I have a strange phenomenon.

24c02 on the bottom (in the corner), ImmoOff and soldered again.

Vehicle starts without IMMO Box, no problems.

But now the engine control light flashes and I can't establish a connection with VCDS.

EEPROM broken?
Or do I also have to adjust the EEPROM (also a 24C02, b58328) on the upper side?

I attach IMMOOff files also.
you used a program of dubious quality (clon) to immo off
and you're surprised it's not working
after all you are good at these puzzle
it's hard to overtake you

[Volker]

........ i´ll think i locate the problem

[Volker]

Problem solved......everything is fine.

Special THX to kiszka for helping me....not kidding...seriously....

[Volker]

Also found this on another forum...and its exactly what i mean...some cars running with "4 edited"...and especally this car today works with "2 edited"



Just to make some more mess in this, I'll add what I have found on two ECUs:

The "55 22 00 xx" pattern method worked on ECU HW V3.1. There were two places with this pattern: first one followed by value 0x73 and second followed by 0xF3 (adress 0x65 and 0x82 in my case). Values changed to 0x60 and it worked.

But the ECU HW V3.0 did not contain this pattern. There were 4 places with 0x33 value instead. So I've only changed values on 0x35 and 0x67 adresses and it worked.

[kiszka]

Also found this on another forum...and its exactly what i mean...some cars running with "4 edited"...and especally this car today works with "2 edited"
like everything, you'll do publicly
then you won't be needed here
remember, the hand that feeds you

[kiszka]

Problem solved......everything is fine.

Special THX to kiszka for helping me....not kidding...seriously....
thank you very much for the special thanks to me :tears_of_joy:
I'm modest, you did the work yourself :applause:

[rafal]

It looks like happy end....well done

[Volker]

It looks like happy end....well done

Hmmm...i think its not well done.

Same Problems after corrected solution....1 day later

Starting blinking ECU control lamp....no communication with ECU.....but ImmoOff works :distrust: