OK.... it's an intermittent fault so the mechanic will NEVER find it. I
of course suspect the main relay (replaced once, like 10 years ago).
So... thought I'd wire in a switch across the terminals which I could
use to bypass it when it is being uncooperative, and either prove or
disprove the relay theory. And make the car run, if I am right. But I
can't find my Volvo wiring manual. So... which terminals would be
appropriate to bypass/jump?
Thanks.