About every three months my2005 XC 70 Gives a red triangle and says either brake failure (brakes work) or immobilizer ... and car either must be pulled over or wont start. Thank goodness if I wait about a half hour it will restart and go. I put it on a do it yourself diagnostic and it said high speed sensor intermittant and high speed CAN Communication bus performance.

Has anyone successfully resolved this problem? What about Xenmodex ?

Thanx much