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Hi,
I think they are located under the center vents on a horizontal bar above the center console.
You cannot reach them from under the console unless you can lean or pull it out quite a bit.
They are clipped very tightly in a row.
They have been very reliable for me so I hope you are not on a wild goose chase.
The switch can be problematic as it most used by our human hands or a dogs paw. 🙃
Open and closing the door can take a toll on that wiring harness eventually.
You might want an ohmmeter test them while wiggling. A test light can tell you more about the condition of ALL of that loom. There are lots more than one wire involved from that main switch.
The relay’s ends do not get moved much, if any, unless you have been back on under them for something else?
You should be able to reach them from the instrument cluster side or even with the glove box or removed.
The center vents facia also might give you access them from under the duct manifold.
Things are “tucked” in that area.
It’s been a long time since I have been in the junkyards and when I went there most of the time someone had already remove some of that stuff across the dash.
I recently found out the headlight relay and its socket has two homes on the 240s.
I had a socket overheat because of a terminal going bad inside.
I spliced around it with bullet or spade connectors.
The older cars have that THING located down by your left foot with the wiper relay.
It’s one of those strange quirks Volvo did related to the wagons tailgate ruling over the sedans.
This was on my 1986 245. I think I have seen there until 1988.
The 1989s got the change over with the advent of CPS or EZK ignition controls.
Good luck with the hunting.
Phil
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