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Title: screen wiper malfunction Post by bernard_slade on Oct 30th, 2016, 6:07pm my 1998 R reg diesel estate is mercifully devoid of arnitel wiring and normally behaves impeccably but now despite no car washing or rain the wipers have started intermittent wipe mode when in the off position --fast wipe and normal speed wipe function ok as do intermittent and reverse wipe and rear intermittent but i cant get them to stop when in the off position--it cant be a flooded fuse box --no rain but somehow power is getting to the intermittent relay when it should be isolated---is there a known malfunction in the switch that happens --any clues?? --i forgot to say they stop when the ignition is off |
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Title: Re: screen wiper malfunction Post by PJDavis on Oct 30th, 2016, 10:49pm Does it 'adjust' if you turn the wee switch to a different number? If it does the switch needs replacing. If you don't have the wee turn thingy for adjusting the time-delay, then wiggle it front-to-back, and see if it stops. If it stops it's the switch again. If it doesn't stop, I would be thinking there's a wire problem to the relay. |
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Title: Re: screen wiper malfunction Post by bernard_slade on Oct 31st, 2016, 2:04am changing the thingy to a different number simply alters the frequency as though it was set for time delay --no amount of wiggling it between 1 and 6 eliminates it wiping again after a delay i even checked the wash wipe button hadnt stuck but again that all responded as normal--i suppose its possible the relay may have stuck on but i think they normally fail in the off mode--i have a spare switch but reluctant to remove steering wheel and the airbag unless absolutely necessary to avoid the hassle of warning lights that inevitably start coming on until the clockspring decides its happy after umpteen repositionings--yes mot is due this month--not sure if the intermittent was wipe is a failure or not --i know an airbag warning light is |
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Title: Re: screen wiper malfunction Post by a900one on Oct 31st, 2016, 8:34am Can you just wire it up to see if its the switch, not fit it as such :-/. |
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Title: Re: screen wiper malfunction Post by Simmo on Oct 31st, 2016, 10:01am Bernard, how about removing the intermittent wiper relay, which is number 2 in the main,(drivers side) fuse box? The rear intermittent wiper is controlled by a separate relay situated near the steering column. Please let us know how you get on as I can't recall seeing this particular issue on here previously. Good luck. ;) |
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Title: Re: screen wiper malfunction Post by bernard_slade on Oct 31st, 2016, 3:51pm i tried replacing the r2 relay which didnt solve the problem --the relay is curious in that it has an upper and a lower part -i only changed the upper as the lower part resisted being removed ==my spare has tangs that are designed to keep it in place so i left well alone as i suspect it is a conversion adapter with different slots to the upper relay with probably no working parts --anyway i solved the dilemna by removing the relay =all is now well -i seldom used the intermittent feature anyway-every thing else works ok |
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Title: Re: screen wiper malfunction Post by Simmo on Oct 31st, 2016, 5:36pm Thank you Bernard. More info for the Forum. :) |
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Title: Re: screen wiper malfunction Post by bernard_slade on Nov 1st, 2016, 10:13pm bit more info--two unexpected side effects with the intermittent wipe relay removed --wipers work pefectly when turned on but no longer self park when switched off ---secondly with wiper switch in off position rear wiper works when reverse is engaged----i guess this is all pointing to the switchbeing defective---ive got one somewhere --its on my to do list after MOT is out of the way |
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Title: Re: screen wiper malfunction Post by Simmo on Nov 2nd, 2016, 8:50am Good luck with the MOT Bernard and please keep us in touch with events. ;) |
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Title: Re: screen wiper malfunction Post by Tompion on Nov 2nd, 2016, 12:01pm The self park switch is within the wiper motor assembly & that appears to be controlled by the relay so not parking is probably what you'd expect without the relay. Intermittent wipe is controlled by the central timer, are other timer functions working correctly such as interior lights off after a few seconds. A faulty switch or connection looks the most likely. All the best with the MOT |
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Title: Re: screen wiper malfunction Post by bernard_slade on Nov 3rd, 2016, 9:57pm the good news is my estate passed the mot and i have found my spare wiper switch --it turns out the estate wiper switch differs from the saloon one and my spare is for a saloon ----i am following one on ebay which is the correct estate one and the bidding has a week to run so i must be patient a bit longer |
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Title: Re: screen wiper malfunction Post by Simmo on Nov 3rd, 2016, 10:17pm Good news re the MOT Bernard. Hope you get the switch. ;) |
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Title: Re: screen wiper malfunction Post by Nunnspoet on Nov 5th, 2016, 9:08am Well done re. the MOT pass Bernard. Brill! Mike 8) |
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Title: Re: screen wiper malfunction Post by amigafan2003 on Nov 5th, 2016, 6:31pm Yeah - estate and salon switches are different as salons don't have a rear wiper. |
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Title: Re: screen wiper malfunction Post by a900one on Nov 6th, 2016, 12:05am My saloon has an estate wiper switch. As it was one of the last ones, that was more than likely what was left in the bin ;D Gerald. |
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Title: Re: screen wiper malfunction Post by Technology2005 on Nov 17th, 2016, 12:09am Talk about a coincidence..... One of my Scorpios has the exact same fault as this one..... think I need to change the switch and or investigate the wiring. Just my luck that the Scorpio with wiper problems is not the one that is off the road due to the hit and run parking incident today. David |
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Title: Re: screen wiper malfunction Post by a900one on Nov 17th, 2016, 10:59am Just my luck that the Scorpio with wiper problems is not the one that is off the road due to the hit and run parking incident today. Sorry to hear the above, there seems to be so many scumbags around doing that. I tend to use the scorp less just in case that happens to me >:( >:( |
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Title: Re: screen wiper malfunction Post by a900one on Nov 17th, 2016, 11:00am Sorry to hear about your, hit and run, but there seems to be lots of scumbags doing that. I tend to use the scorp less in case that happens to me >:(. My Eos got a large dent in the passanger door in a local supermarket and will need the door resprayed at some time :-/ Gerald |
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Title: Re: screen wiper malfunction Post by bernard_slade on Feb 20th, 2017, 9:39pm i got the right switch ok and finally got roundto removing the steering wheel and airbag to fit the replacement switch and lo and behold with the relay plugged back in the fusebox wiper functions back to normal then a pidgeon pooed on the screen so i pressed the washer button and nothing happened --yes i checked there is fluid in the bottle--now the switch only has one multiplug so i know i got that right so now i think i have a switch with another defect---the fuze to the washer bottle is the same one that feeds the wipers so its not a fuse and i cant see any mention of a relay for the washers so maybe its coincidental to the washer pump failing at that precise moment but this saga is to be continued |
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Title: Re: screen wiper malfunction Post by Nunnspoet on Feb 21st, 2017, 9:38am Yes, well done with the MOT Bernard. Happy days 8) |
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Title: Re: screen wiper malfunction Post by Simmo on Feb 21st, 2017, 10:37am Bernard. Just one thing to check. The washer pump is a push fit into the washer bottle and sits in a rubber cup which is a filter. This can get covered in slime and thus stop water getting to the pump. It is likely to happen if things like washing up liquid have been added to the washer bottle at any time as they react with screen fluid. Worth a check but beware of getting wet when you ease the pump out! |
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Title: Re: screen wiper malfunction Post by bernard_slade on Feb 21st, 2017, 9:01pm yes and i know i have a full washer bottle but i am not optimistic its a blockage because in the past i found electric washer pumps buzz even if starved of water so it seems to be electrical as mine remains silent--what is worse today driving to a hospital appointment a few spots of rain came on the windscreen and magically the wipers did 3 wipes then although the screen wasnt even wet it repeated 3 wipes about half a mile later --the wiper switch was off --now i know the scorp was never fitted wirh hygroscopic wipers so the gremlin has returned and there wasnt enough raindrops to reach the fuseboxes and we have had at least a week of dry weather---i could probably get the washers back by refitting the old wiper stalk and putting up with no intermittent wipe and no self parkor i can try to work out what multiplug blades do what -the old haynes manuals often showed component terminal identification but ford wiring loom diagrams only give any detail on major looms ---i figure if i can identify the earth in the multiplug it should be possible to work out whether the switch is passing current in each position using a multimeter on continuity check mode or i may give up and let my local garage sort it out as i am not really able to do much crawling about under the car any more and they do have diagnostic equipment and the know how |
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Title: Re: screen wiper malfunction Post by bernard_slade on Feb 27th, 2017, 6:54pm today i gave in and took the car to dmvs motors and their diagnosis showed i had voltage at the pump for the rear wiper but nothing at the front confirming that my recently replaced wiper switch is faulty-- with no replacement switch to hand they came up with an ingenius idea that was to swap the washer outlet pipes over so that pressing rear screenwash washes the front screen --not only can i now see where i am going but it will also pass an MOT when the time comes---well worth the £48 bill i thought also a tip well worth passing on --i doubt i would have thought of it---now the less urgen search for yet another switch starts --i havent found a way of testing continuity of circuit in the washer switcheven partially dismantleing the old one didnt show which wires went to each terminal -all showing connectivity or not remaining the same whether the wash button was depressed or not and the identification numbers cast into the plastic multiplug bore no relation to any numbers shown on the wiring diagrams so you dont know if a switch works before it is installed |
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