Hi all.

I have a 2004 XC90 T6 with 170k miles that I'm currently trying to sell. I took it to a mech to run a diagnostic due to an anti skid service message. He told me it is a faulty DEM (differential electronic module).

To remove and rebuild would be $600+. I've found them online for half of that. My question is, how important is it to keep the same network codes and software? This computerized stuff is foreign to me...

I just want to clear the message display and sell it, any and all advice is welcome.

Thanks in advance.