Windscreen wipers stop anywhere after few seconds (citroen xsara)

[Jungle]

Hi everybody. I bought a Citroen Xsara 2 1,6 16v 2002 with light and rain SENSOR. When i bought it 4 years ago, it had problems with lights so i changed the COM2000. After that lights works right. My problem is the wipers never worked fine. I can't tell if it was like this since i bought it, if it was before i changed the COM2000, i think so, but not sure cause i changed the COM just few months after i bought the car and maybe i didn't realized about the wipers.But i haven't been able to fix the problem with wipers already 3 years....i would try to describe the problem:
Most times i turn on the wipers, donesn't matter with position in the stalk, after 7 seconds the FRONT wipers stop in any place, sometimes in the middle in the middle of the windscreen. It does the same in any postion ,slow or fast, often stops after 7 seconds. When they stop. if you move the stalk to other position, they work again aproximately 7 seconds. If you move the stalk for example after 6 seconds, the wipers works again 7 seconds, so you avoid them to stop . But it is dangerous to drive under rain paying so much attention to move the stalk all the time so they don't stop. It works always the same, even in the stalk position where they should just work one time and came back to the rest position, the work seven seconds and stop anywhere. If i put the stalk in the AUTO position , the same, even if it is not raining, they work 7 seconds.
I took car to repair it one year ago, they changed me whole arm, including wiper and motor , even if i said, i didn't think that would solve the prolem, they did it , and as i expected nothing change. Something i learned searcheing info is that the Xsara has a relay in the motor itself.
More info: fron time to time, wipers work perfect for a while....one of the last days it works perfect for 44 minutes!!! and when they work they do it as they should in any of the stalk positions. For example the AUTO position works if it is raining but don't if it is not raining, the fast position works until you turn it of and stops in the right place ..... often when i take the car in the morning after been pak all night, they work fine and after a while working they stop and then, when they have stopped once , they don't work fine until next day, i guess after the car is park for hours...
I have check fuse f17 and it is fine, the one for wipers. Rear wiper works fine. The behaviour is the same if i use lights in auto or not .... I tried some time ago the BSI methods and nothing changed....
I think maybe there is something worng in the BSI, BSM or in any of the wires..... i think maybe nothing is broken, maybe any bad conexion, cause it is the only reason i can think why some times it works perfect for 30 or 40 minutes and some times not even a minute.....
Any ideas? thanks

[GiveMeABreak]

Your issue may be that you replaced the COMMS unit with the incorrect one for your vehicle. These are all different according to functions and options, so if you have the wrong one, it can affect operation.

[Jungle]

Your issue may be that you replaced the COMMS unit with the incorrect one for your vehicle. These are all different according to functions and options, so if you have the wrong one, it can affect operation.

Thanks for your answer. The problem, i am not 100 % if wipers were working wrong before i replaced the COM2000 (for a brand new valeo one) just some months after i bought the car, i think probably the problem was there before but i am not 100% sure. When i bought the COM , by the way i bought it in AMAZON, i checked the model , also that was for cars with light and rain sensor.etc.... but yes, there is a possibility information was wrong, but the thing is then why sometimes, like some days ago, wipers worked perfect for 44 minutes......
The reason for the wrong behaviour should be something that makes possible that wipers works perfect some times ...... for example if fuse would be broken, it would be imposible that wipers worked 44 minutes perfect... i checked the fuse anyway, but you know what i mean?

[GiveMeABreak]

If it was the fuse, then it wouldn't work at all most likely.

[Jungle]

If it was the fuse, then it wouldn't work at all most likely.

Yes i know, but also about wrong COM, if so, do you think it would be possible that from time to time it works perfect for 30 , 40 minutes?

[GiveMeABreak]

Pop your VIN up for me so I can check the wiring on your model.

[Jungle]

Pop your VIN up for me so I can check the wiring on your model.

0932882

[GiveMeABreak]

That's not recognised as a valid VIS. Best to pop the whole VIN up or double check.

[Hell Razor5543]

Just a thought. Try unplugging/plugging in the relevant fuses a dozen times or so. Years ago (on my first C5) the rear wiper was intermittent, in that sometimes it would work, and sometimes not (and NO, I don't mean the normal action). I checked the fuse (both visually and with a multi-meter), and it was OK. I then noticed the blades were a very dull grey, suggesting tarnish. After I removed/fitted the fuse several times the blades were a lot cleaner, and then the wiper behaved normally.

[Jungle]

Just a thought. Try unplugging/plugging in the relevant fuses a dozen times or so. Years ago (on my first C5) the rear wiper was intermittent, in that sometimes it would work, and sometimes not (and NO, I don't mean the normal action). I checked the fuse (both visually and with a multi-meter), and it was OK. I then noticed the blades were a very dull grey, suggesting tarnish. After I removed/fitted the fuse several times the blades were a lot cleaner, and then the wiper behaved normally.

do you mean the blades of the fuse?

[Hell Razor5543]

If you look at a typical car fuse you will see that they have 'blades' that go into their holders, like this;

https://www.competitionsupplies.com/aps ... boEALw_wcB

[Jungle]

If you look at a typical car fuse you will see that they have 'blades' that go into their holders, like this;

https://www.competitionsupplies.com/aps ... boEALw_wcB

ok, maybe it would be better idea to clean it with a product? like contact cleaner?

[Hell Razor5543]

I just unplugged it several times, and the action scraped off the tarnish.

[Jungle]

I just unplugged it several times, and the action scraped off the tarnish.

Do you think the problem was in the fuse blades or in the holders?

[Hell Razor5543]

Just tarnish on the blades that had built up over time (at least 10 years). I do NOT say that this is what your problem is down to, but it was what caused my issue.