Author |
Topic: Weird lights/wipers crossover fault (Read 647 times) |
|
adowds
Full Member
Scorpio Rising
 
Posts: 259
|
 |
Weird lights/wipers crossover fault
« on: Dec 22nd, 2006, 4:20pm » |
 Quote  Modify
|
Hey everyone,
Finally getting the 24v Scorp ready for MOT after many weeks sorting engine loom, vacuum hoses etc. Now there's a weird problem - when I turn the headlight switch on, the front washer pump runs briefly. The self-park function is gone on the wipers, and the intermittent wipe doesn't work either.
Clearly there's some connection/relay/fuse/earth point that's ruining things. Any ideas where would be good to check first?
Hope we're all having a top christmas...
Al
|
|
 IP Logged |
|
|
|
Simmo
Administrator
I'm an OAP !
Posts: 5508
|
|
Re: Weird lights/wipers crossover fault
« Reply #1 on: Dec 22nd, 2006, 4:50pm » |
Quote Modify
|
? wet fusebox??.
|
|
IP Logged |
Now I'm an OAP
|
|
|
adowds
Full Member
Scorpio Rising
Posts: 259
|
|
Re: Weird lights/wipers crossover fault
« Reply #2 on: Dec 22nd, 2006, 5:22pm » |
Quote Modify
|
I do have the battery cover, and there's no catastrophic water puddles or whatever in either fusebox. Plus it's been in the garage for a few weeks now.
Still worth another look I guess though, cheers...
Al
|
|
IP Logged |
|
|
|
scorpio_man
Administrator
Ford Kuga awd
Posts: 5654
|
|
Re: Weird lights/wipers crossover fault
« Reply #3 on: Dec 22nd, 2006, 5:52pm » |
Quote Modify
|
hi there
i'd have a look at the timer module/fuse. think it's fuse 36.
hth
btw, also check the main plug for the fusebox.
|
|
IP Logged |
|
|
|
Simmo
Administrator
I'm an OAP !
Posts: 5508
|
|
Re: Weird lights/wipers crossover fault
« Reply #4 on: Dec 22nd, 2006, 9:28pm » |
Quote Modify
|
The main fuse box connector has two lugs which MUST be located properly BEFORE the unit is pressed down and clipped home.
|
|
IP Logged |
Now I'm an OAP
|
|
|
adowds
Full Member
Scorpio Rising
Posts: 259
|
|
Re: Weird lights/wipers crossover fault
« Reply #5 on: Dec 30th, 2006, 2:17pm » |
Quote Modify
|
Lads lads lads...
Spent this morning faffing with it along with my leccy engineer mate. The problem has changed slightly, but essentially it is this:
Wiper stalk doesn't work in normal or fast wiper speed position. Nothing happens.
Washer button makes the wipers do the three strokes thing, but there's no washer pump operation.
When you put the stalk in intermittent position, the wipers work in normal mode - i.e. not intermittent, just constantly operating at normal speed.
ALSO
When you switch the headlights from dip to sidelights, the wipers do the 'three strokes' washer button function thing. Again, no washer pump operation.
This is all very interesting. but it's stopping me getting a MOT so has the car totally off the road...
I've checked visually the main fusebox and it all looks clean and dry. Had the relevant fuses and relays in and out and they all seem okay. I suspect an earth point - the two systems share earth point G5 according to the wiring diagrams - anyone know where this is? Other suggestion is a failed washer pump causing a short to earth - how do you access the washer pump?
Thanks for your time...
Al
|
|
IP Logged |
|
|
|
Simmo
Administrator
I'm an OAP !
Posts: 5508
|
|
Re: Weird lights/wipers crossover fault
« Reply #6 on: Dec 30th, 2006, 2:45pm » |
Quote Modify
|
Does THIS help, and are you sure that the drivers side fusebox connector IS properly located. Pegs fitted in to lugs BEFORE it is pressed home.
|
|
IP Logged |
Now I'm an OAP
|
|
|
adowds
Full Member
Scorpio Rising
Posts: 259
|
|
Re: Weird lights/wipers crossover fault
« Reply #7 on: Dec 30th, 2006, 2:54pm » |
Quote Modify
|
Cheers Simmo - I can see a G4 connection on the engine bulkhead schematic, but no G5. It's not too clear where that G4 is exactly either.
Main fusebox connector is deffo in place okay, yep.
Hmmm...
|
|
IP Logged |
|
|
|
SCORPY_NEWBY
Full Member
Scorpless but still an admirer!
Posts: 113
|
|
Re: Weird lights/wipers crossover fault
« Reply #8 on: Dec 30th, 2006, 6:47pm » |
Quote Modify
|
Mine did a similar kind of thing and the fuse boxes also seemed dry. But when i stripped the boxes down both had a bit of water in them and corrosion was bridging a few circuits and messing things up. Takes a couple of hours to do but is very satisfying in the end especially the money saving part 
|
|
IP Logged |
|
|
|
adowds
Full Member
Scorpio Rising
Posts: 259
|
|
Re: Weird lights/wipers crossover fault
« Reply #9 on: Dec 30th, 2006, 7:35pm » |
Quote Modify
|
Are they hard to get out? Deffo worth a go I suppose...
|
|
IP Logged |
|
|
|
SCORPY_NEWBY
Full Member
Scorpless but still an admirer!
Posts: 113
|
|
Re: Weird lights/wipers crossover fault
« Reply #10 on: Dec 30th, 2006, 10:32pm » |
Quote Modify
|
Battery side is easiest, Undo the battery first then remove the two ten mil bolts in front of the fuse box and lift up then remove the thirteen mil nut for the positive feed once done you should be able to remove all the plugs below. Looks daunting but is actually quite straight forward.
The main fuse box is a little awkward. Remove the light and carpet from the drivers footwell, Just above the accelerator you should see a small square of sound deadening material remove this and you will see quite a few plugs, Once disconected remove the four eight mil nuts that hold the box in place from inside the car. Before removing the box take a picture of the fuse and relay placements as you will have to remove a couple of relays for the fuse box to slide out underneath the wiper regulator. Once removed try to keep everything in order ( i used tipex to mark the layers ) and you should get on fine  Have fun
|
|
IP Logged |
|
|
|
adowds
Full Member
Scorpio Rising
Posts: 259
|
|
Re: Weird lights/wipers crossover fault
« Reply #11 on: Dec 31st, 2006, 9:31am » |
Quote Modify
|
Cheers for that mate, will have a go if i can't find anything else to try...
Al
|
|
IP Logged |
|
|
|
Thunderchild
Full Member
My other car's an Aprilia
Posts: 199
|
|
Re: Weird lights/wipers crossover fault
« Reply #12 on: Dec 31st, 2006, 6:16pm » |
Quote Modify
|
Hi there, it actually sounds as if you are missing an earth. since you were fixing the loom etc did you reconnect all the earths and are they good.
Thunderchild
|
|
IP Logged |
|
|
|
adowds
Full Member
Scorpio Rising
Posts: 259
|
|
Re: Weird lights/wipers crossover fault
« Reply #13 on: Jan 2nd, 2007, 12:10am » |
Quote Modify
|
Hey mate,
I agree actually on the earth point. I have replaced the entire engine loom, but I'm pretty sure I have reconnected everything I took off.
Annoying thing is I found this post:
http://www.fordscorpio.co.uk/cgi-bin/yabb/YaBB.pl?board=Problems;action= display;num=1137175139;start=0#0
Which is the exact same problem. But oddlien only posted twice and never mentioned if/how he sorted it... Have pmed him but I guess he's not on the forum any more.
It'd be good to find earth point G5 - anyone any idea how to track it down? Or could I connect a new earth to the washer pump wiring as an experiment?
Cheers lads and lasses,
Al
|
|
IP Logged |
|
|
|
Tompion
Administrator
1997 2.3 Ultima estate.
Posts: 2918
|
|
Re: Weird lights/wipers crossover fault
« Reply #14 on: Jan 2nd, 2007, 1:23am » |
Quote Modify
|
Hi Al
On my 2.3 there's an earth on top of the steering column behind the dash, but what connects to it I don't know.
Dave
|
|
IP Logged |
ABS multiplug wheel sensor pins MK IV or MK 20
|
|
|
adowds
Full Member
Scorpio Rising
Posts: 259
|
|
Re: Weird lights/wipers crossover fault
« Reply #15 on: Jan 2nd, 2007, 10:24am » |
Quote Modify
|
Well, top marks to my man Oddlien - he's replied to my PM.
<quote>
Hi
I solved the problem by dismantling the pump , turned it upside down and put on the current at the same time as I hit it firmly with a screwdriver. It have worked ever since... I guess it just needed to come loose from some dirt.
</quote>
So I guess I need to strip the pump down and check it out... Will report back and let you all know how it goes.
|
|
IP Logged |
|
|
|
oddlien1
Newbie
Norwegian 2,3
Posts: 7
|
|
Re: Weird lights/wipers crossover fault
« Reply #16 on: Jan 2nd, 2007, 7:35pm » |
Quote Modify
|
Hi again
Forgot to mention that when I put current on the pump it was direct from a battery-charger and had no connectin to the car .When I put it back in it was ok. Still working. But now there is another problem ....about to post it now in the forum.
Best regards
|
|
IP Logged |
Norwegian owner of a 2.3 litre 97mod.
|
|
|
adowds
Full Member
Scorpio Rising
Posts: 259
|
|
Re: Weird lights/wipers crossover fault
« Reply #17 on: Jan 2nd, 2007, 7:50pm » |
Quote Modify
|
Hey Oddlien, thanks a lot for that. I'm pricing a new washer pump anyway, and am about to go out and have a dig at mine now...
Cheers,
Al
|
|
IP Logged |
|
|
|
adowds
Full Member
Scorpio Rising
Posts: 259
|
|
Re: Weird lights/wipers crossover fault
« Reply #18 on: Jan 2nd, 2007, 10:13pm » |
Quote Modify
|
Well I've had the washer off and it's fine - works okay from a battery off the car. Wipers still operate from the headlight switch with the pump disconnected too, hmmm.
Got to investigate further tomorrow, with some fly leads to see if it's the earth or the 12v side that's playing up...
|
|
IP Logged |
|
|
|
adowds
Full Member
Scorpio Rising
Posts: 259
|
|
Re: Weird lights/wipers crossover fault
« Reply #19 on: Jan 2nd, 2007, 11:09pm » |
Quote Modify
|
Had a mad notion that it might have been the central timer module, so swapped in a spare one I had - no joy. Still the same problem.
Must be fusebox or earths I reckon. Going to try giving direct live and earth feeds alternately tomorrow to experiment and narrow down the problem.
|
|
IP Logged |
|
|
|
|
Home
Help
Search
Members
Login
Reply
Send Topic
Print