2000 V70 Cross Country AWD SE 167k miles. Just bought this car for a friend and going through to fix all the issues. Power side mirrors, cruise control, and seat belt warning all don't work. Previous owner mentioned lift gate's washer also doesn't work. These are all on fuse 29 (10A) and the fuse is good (checked for 12V while fused plugged in). Also checked the power mirror switch connector for power (I believe blue wire but I checked all) and there is no power on any pin with key in position II. Master window control switch works perfectly. Previous owner did replace the ECM. Not sure if ECM replacement would require any kind of sync with respect to this failing circuit. Thoughts on where to chase next. Also great if anyone knows where I can find wiring diagrams for this car. Got Volvo's EWD but its for P2s.