Hello!
I have a 2001 Volvo V70 D5 with 523000 km (325000 miles)
For about a year I've had a problem with cruise control (CC). It started off by disabling the CC while i was driving short trips
Realize that cruise control system is operated by computers on your Volvo you could check for a blown fuse or loose wiring but that's about all you could do because the modules themselves are computers and you would need a Volvo dealer scan tool in order to do bi-directional testing of that system.but make sure you brake light works cuz of your brake light switch goes bad it'll shut off the whole cruise control pray it said easy