Windscreen and headlight washers not working

check the motor

It should be that when you pull the stalk towards you the front wiper/headlight wiper operate, away from you for the rear wiper. It hasn't just rewired itself, and miswiring seems quite unlikely.
2005 VOLVO XC90
Has it been dismantled? Has any other electrical work been done near relays or fusebox?
Some history would be useful. I'm also wondering whether it could also be changed by programming the computer? If you don't have any history I would join a volvo forum and seek further advice before you start dismantling the stalk wiring.
not sure where you are in the world so here are a couple
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the wiring on the back of the column switch may have broken off check that first common prob

I would check the relay by pulling it and swapping another in it's place but it is probably an issue with the stalk

If the wipers work normally they are on the same fuse. I would say it's more like the pump

hi the wiper stalk is at fault regards

Hello I have a saab 9.3 SS 04 and had the same problem.

- intermittent wipe doesn't work, at all
- windscreen washers don't work, at all
- "normal" continuous, and fast wipe work, but the wipers
freeze in the middle of the windscreen if you let go of the
control stalk, rather than sweeping back to the resting position
- same "freeze" happens with the manual wipe (push down on the control stalk)

The weird thing is that, this morning, for about 10 minutes, it seemed to fix itself,
partially - the washers started working etc - but the intermittent wipe still didn't work. However not long after that it went back to the symptoms described above.
also if I unplugged my car battery for a minute the washers worked for several seconds but again same problem occurs.

Solution is to replace your wiper motor. its that "simple"
worked for me. The wiper motor has a lot of electronic stuff and seems to control the washer engine.
Good luck.

it sounds like to me you could have a bad motor or a bad switch

Hello I have a saab 9.3 SS 04 and had the same problem.

- intermittent wipe doesn't work, at all
- windscreen washers don't work, at all
- "normal" continuous, and fast wipe work, but the wipers
freeze in the middle of the windscreen if you let go of the
control stalk, rather than sweeping back to the resting position
- same "freeze" happens with the manual wipe (push down on the control stalk)

The weird thing is that, this morning, for about 10 minutes, it seemed to fix itself,
partially - the washers started working etc - but the intermittent wipe still didn't work. However not long after that it went back to the symptoms described above.
also if I unplugged my car battery for a minute the washers worked for several seconds but again same problem occurs.

Solution is to replace your wiper motor. its that "simple"
worked for me. The wiper motor has a lot of electronic stuff and seems to control the washer engine.
Good luck.