I'm trying to way up options as to how to replace a failed engine ECU on this vehicle. Volvo prices would write the car off, so I'm exploring the options of replacing with a second hand unit to get my customer back up and running again. I've been told that it is possible to clear the immobiliser coding from this Fenix 5.1 system if I were to purchase a second hand unit, but I've never had to replace one of these so I don't know what is involved with recoding it to the vehicle. I have the Autodiagnos scanner here with the original Volvo kit, which I believe was the dealer tool for a while? Can anyone tell me what needs to be done and whether I can reprogram it to the vehicle using Autodiagnos?