Hi there!

So, the problem is with XC60 2015 T6 DTC ECM-P060B00. Trying to eliminate this DTC, ECM has been replaced with the one from scrapyard, the same DTC remains with software from used ECM as well as with cloned to used ECM original software. DTC itself makes no problems to engine behavior ...

He tried to enable it in carconfig, and then get a reload at the dealer to make it work, but the reload removed the config change.
The project was adding four-c to a V70 from an S60R, so it will probably be easier on a car that is already prepared for it.


That's natural - reload at dealer ...

Thank you for this valuable information. Can I assume that some features I want are already programmed in my CEM but not enabled? For instance trip computer and avg fuel consumption? I have the correct Switch with the Info button and knob, but not this feature.


Yes, it is. You just need to ...

oscilloscope wrote: 18 Oct 2022, 06:46

ZRimaZ wrote: 18 Oct 2022, 06:30 You have to copy eeprom 93c86 as well

No worries , I'll certainly do that. , does the microcontroller need a checksum performing in it if its a straight copy over?

No, just copy/paste

You have to copy eeprom 93c86 as well

5ft24 wrote: 11 Oct 2022, 11:04 you can change service intervals and a LOT of those options in VIDA for free...

Nope! If "user defined settings" in config is not set, you can not change intervals in Vida. For older P2 cars it can be done, but for newer ones - no.

it won't help..

my understanding is these flash files would have some sort of internal checksum to ensure integrity, changing that would surely change the entire checksum calculation. changing some of it would save the checksum calculation in a area which has data already in it.


Look: I'm ...

oscilloscope wrote: 10 Oct 2022, 11:06

My question is how can a checksum be calculated for only part of the flash dump but not the entire flash dump ?

In this case you have to read your hex editor's help about checksum claculation of selected area...

Length of xonfig block to be checksumed is 8C start of the block is next byte after DF, which is checksum

no! Read my answer one more time, looks at Matija's screenshot and analyse it one more time!