I have a 98 V90. Turn signals and flashers are not working properly. With the car off, the flashers work properly. With the car on, one turn signal light (the left) stays lit and the other stays off. This is regardless of the position of the turn signal switch. With the car on, the flashers do not work at all, i.e. the one signal/flasher stays lit, and the other stays off.
Poking around a bit, seems this may be the flasher relay. I can't find where this is located. Not enough info in the Chilton manual.