cyberxn

I SOMHOW blew the new relay in my windshield Wipers.
I need to know if possible What Wires on the Swich Controld the windshield Wipers and if the Relay can be Bypass'd for a 2 way rocker switch of somkind.
If this is possible. I would like to know Ty

HAILERS

Yeah. the Blue/Red wire in the wiper switch plug is for HIGH and the Blue/White in the wiper switch plug is for LOW speed.

Those wires are looking for only one thing to make the wipers work. They are looking for a ground.

So, with the plug off, apply a gnd to the Blue/Red wire and the wipers should go high speed. Put a gnd on the Blue/White and you've got LOW speed.

If your gong to use a rocker switch it would be best to access the LR and the LW wires NOT at the wiper switch plug but rather at the plug located above and just to the right of the steering wheel column, just above your knees. It's BLUE in color.

That plug has a reference designator of X-18 on a series four, 1987 FSM wiring diagram. I don't know or care what they call it on other diagrams.

You'll have a slight problem after finding that plug. It has TWO LR and TWO LW wires and which of the two are for the wipers I don;t remember. You could find out easily enough by just ohming out the LR from the switch pulg to X-18 and the same with the LW wire.

EDIT: Actually it's not that hard finding which of the two LR and two of the LW are dedicated to the wipers. Just get a spare piece of wire and put one end to a known gnd. Then touch each of the LR wires til the wipers move. That LR is the wiper wire. Do the same with the two LW wires til the wipers move. DO NOT WORRY about touching the wrong LR or LW wire with a gnd. The other two LR and LW go to the Cruise control and in normal operation they get a gnd signal. So no harm can or will be done by putting a gnd to those two as you look for the right LR or LW wire.

Once found you would run the LR or the LW to a rocker switch and the other wire on the rocker would go to gnd. Done. Wipers now work in just the HIGH or just the LOW depending on which wire (LR or LW) you selected. I'd select LR myself. No intermittent, just high or low.

The power for the wipers is already at the wiper motor so all you have to do is what was described above to make the wipers work thru a rocker switch. The key should be to ON when doing this, common sense.

SureShot

Or - just replace the dinky relay in the switch module with any DPST 12volt relay.
That way you get all the low, high, & variable intermittant functions back.
They simply wear out once every 10 years.





OR - get it rebuilt professionally my Icemark - your friendly moderator in this forum.

cyberxn

I replaced it.... it lastid for like.... a month.. then after the car sat for 2 months... The windshield Wipers Were Done for

HAILERS

I assumed the circuit board was broken in the wiper module so another relay wouldn't do much good. Hence the post about how if one wanted, and needed the wipers to work in a hurry, he could just access the LR and or LW wires and put a ground on one or the other to make the wipers work (as in...it's going to rain tomorrow and I need to drive the car....situation. Or forever if he wanted.

And just in case there's doubt, I KNOW how to get a relay from Mouser and install one to make wipers work. That said, I've done what I wrote in my first post, because I needed them to work NOW not tomorrow. Except I didn't use a rocker switch. I used a piece of wire with an alligator clip to the cigar housing and when it rained I had the other end of the wire going to the LW wire at the switches plug (shoulda used the LR instead).

The NZCONVERTIBLE at one time, showed a jpg where he had one/two switches mounted in the interior.

Sureshots relay looks good IF the circuit board in the wiper swtich hasn't been cracked/wiped out/burnt up. Mousers relay cost maybe four bucks.

The G5LE-14-DC12 cost .96 cents and the G6C-2117P-US-DC12 cost $5.61.

MOUSER, 1000 NOTH MAIN STREET, MANSFIELD, TX 76063. Order online.

cyberxn

I did the Stuff above as you had me do it. and LOW and HIGh speed seem about the Same....
IS there any Reason why this might be?

thompsonrx7

can i pick up them relays at any auto store or order them?

HAILERS

Hmmm. Try both at the same time and see what happens. If your hesitant I'll go out and do mine tomorrow and write back. No time this day.

At least you can get them to work at some speed. Better than nothing.

I'm too lazy to look. Did your wipers work in just slow speed and not high?

HAILERS

Auto store? Not likely at all. You can buy them from Mouser at the link I wrote above or from JAMECO or from Digital something or other.
I'd just do the Mouser. They deliver is just a couple of days (depending on what time of day you order I suppose). Those relays have to be soldered in and you have to gain access to the relay area on the switch with, in my case, a Dremel motor with cutoff wheel. And buy a desolder device or some sort to boot in order to remove the relays without breaking the circuit board/traces.

EDIT: OOOPS. I didn't give a LINK to Mouser. Sorry 'bout that. Go online and do a Google search for MOUSER and I think you'll find it. I'd sell you the ones in the scanned picture but you'd have to pay the freight also and in advance. I trust no one. Do the Mouser order.

EDIT: http://www.mouser.com/ Type in the numbers I stated in another post and order them.

Or get them locally. But if you don't know where an electroics store is in you city and or don't usually mess with things electronic..........make life easy. Do the internet. It's swift and clean and you don't waste time driving around the city.

My5ABaby

iTrader: (7)

You might be able to get them at Autozone or something but I would find a good electronics store nearby.

thompsonrx7

yea cause my def only has one speed left

cyberxn

im going out to Cross the 2.... Hope thsi works

cyberxn

Slightly Faster. But not MAX speed, not nearly.
erm any ideas?

HAILERS

Sure do. Answer me this. Do you still have the plug connected to the wiper switch in the dash? Must have that answer.

I couldn't convince myself to tear my dash apart for this. So I went to the wiper motor itself and installed a wire in the back of the Blue/White and ANOTHER wire in the back of the Blue/Red.

THen with the wiper arms raised and off the windshield, key to ON, I touched the Blue/White (lo speed) to the batt gnd. They operated in the slow speed mode, at least seemingly.

Then I set that wire to the side and touched the Blue/Red wire to the batt gnd and the wipers seemed faster....but not as fast as expected.

Then I touched both those new wires to the batt neg at the same time. Not favorable. They actually seemed to be in the slow mode. Not good. Hmmm.

So I had an idea. There is a Blue/Yellow wire at the motor. I de-pinned it and set it aside where it won't short to gnd.

Then I went back to the wire that I installed in the back of the Blue/Red wire and touched that new wire to batt gnd and............the wipers really went to town back and forth. I stopped there and declared final victory.

Off hand I'd say don't couple the Blue/Red to the Blue/White for any extended time period. I have my reasons for saying that. So don't leave both blue/white and blue/red both toching gnd at the same time. Short periods of time won't matter since I've done that and there's no harm done as of now.

IF you had the plug connected to the wiper SWITCH when you did your test, then next time leave that plug off and try just putting a gnd on the Blue/Red by ITSELF again and see if things don't pickup a bit.

That Blue/Yellow runs from the wiper moter plug directly to the wiper SWITCH plug. So if you already had that plug off the switch it would be the same as me depinning the Blue/Yellow at the wiper motor. So no need to depin at the wiper motor if that was the case. And if that was the case, then I don't know what to say.

Tell you what. Tomorrow I'll remove the dash and switch and repeat what I did today but with the plug off the SWITCH.

If your doing a lot of experimenting around, do yourself and the wiper motor a favor. Lift the arms up in the air and leave them there so there won't be such a load on the motor when running them. And no, I don't think you have a wiper motor problem in case you were going to ask that.

I'm done with wipers today. Maybe tomorrow depending on your answer to my first question at the top of this page.

Oh yeah. ONe other thing. Just where were you putting the gnd on the blue/red and the blue/white??? At the plug at the wipers or the plug down under the dash/steering wheel area???? If it was at that large plug under the dash/steering wheel area, do this next time you gnd the blue/red. Gnd that blue/red and as the wipers move, flip the wiper switch that is still hooked up, to first slow speed the to high speed and see if the rate the wipers move does not speed up. I'm done.

HAILERS

Always meant to say that I like what SureShot did with that relay of his. Just appeals to me for some reason. I like work arounds. Their more fun.

cyberxn

Its a Body Gnd on the Side panle by the radio. its a Solid gnd.
SO..... You mean to tell me blue/red is the one i should check out?
this not being a problem. i can Set that up as soon as i get the go ahead from you ( Dont like cutting into wires) none the less I thank you So much for the help and TIME taken To get this working for me.
And this post will probly Help others as well

HAILERS

I admit I rattle too much, so there's miscommunication here b/t us.

There is no reason to cut any of the wires that go to the plugs. You can buy what I call jewelers screwdrivers at the supermarket or the auto store. They are very tiny screwdrivers. The kind you would screw eyeglasses screws with. Cost about three to four bucks.

On the wiper switches electrical plug, what you would do is look at the plug side opposite where the wires are in the plug. IF you look in each socket you'll see a plastic TAB in the middle. You take the very small jewelers screwdriver and lift up on that tap while you pull on the wire that is installed in that hole. The wire will come out. So you don't have to cut the wire at all.

Anyway, what I really, really need to know, when your grounding the wires, whether blue/red or blue/white, is the electrical plug still connected to the wiper switch????? Just curious.

The plug would not have to be connected to the switch for the wipers to work if you jumpered a ground to the socket where the blue/red or blue/white wires are, so I'm not trying to *catch* you doing something wrong etc. It's just something I was interested in.

IF and only IF you had the wiper switch plug connected to the wiper switch and were grounding the blue/red or blue/white by backprobing the plug or some other way, would I like to suggest something else.

The following is the only thing I'm really interested in right now: *****Anyway, what I really, really need to know, when your grounding the wires, whether blue/red or blue/white, is the electrical plug still connected to the wiper switch????? Just curious. ****************************************

HAILERS

But to answer your first question, Yes. The blue/red wire by itself to ground will make the wipers run. But I also find it I remove the blue/yellow wire from the circuit the wipers will move a lot faster when the plug is connected to the wiper switch.

I'm going to fiddle some more tomorrow. I'll take the wiper switch plug off and gnd the blue/red and see if it moves as fast as it did today when I gnded it from the engine bay.

HAILERS

It's Wednesday now: I went out and pulled the plug off my wiper switch this morning.

I took the wiper blades and lifted them off the windshield so when they rotate they don't touch the windshield. You can see the speed difference better this way when you test the speed diff b/t the Blue/Red and the Blue/White.

Then with the key to ON I put a gnd to the blue/white and the wipers move back and forth. Then I took the gnd off the blue/white and put the gnd on the Blue/Red and the wipers moved back and forth at a faster rate than before.

So I'm suggesting that if your not going to use the wiper switch but use a toggle switch instead, that you remove the plug from the wiper switch and then use the Blue/Red wire as the wire to go to your toggle switch and just leave the Blue/White one alone. Unless of course you wanted to have two toggle switches and in that case have the blue/white go to that other switch.

It's raining. I need to put the thing back together asap. Send me your switch and I'll see if it can be fixed. You pay all shipping and no more than that.

thompsonrx7

ICEMARK...can you PM me about a relay rebuild thanks i may be interested...

Nick86

iTrader: (1)

HAILERS, those two relays you picked up from Mouser - is one for the intermittent / speed selector and the other for the rear wiper, or both for the intermittent / speed selector?

Both my intermittent / speed selector relay and Rear Wiper relay are fried. If those relays you showed are not for the rear wiper as well, what are the part numbers I need to redo the front and rear wiper relays?

Thanks!

SureShot

FWIW here is that over sized relay installed. It tucks in next to the turn & flash switch.



It goes tick-tock with each intermittant wiper cycle, but it should outlast the car.

-Bill

cyberxn

Good deal. Wires Hook'd In Wipers Working perfectly.
ALSO seemd i had a Crappy Body Ground. Wich Is now Fix'd as well

HAILERS

NICK86..............Go to this thread by Asherwood https://www.rx7club.com/forum/showth...threadid=35372

In other words the one with the xxxxxxx21117P in the number. The one in my picutre with the copper wire showing thru the cover.

But, heck, buy the other one also. Its only a buck or so and WHAT IF???????????!!!!!!!!!! Just because you buy it does not mean you HAVE to install it later. Install the top and bottom relays and test the switch. If it works, leave the other one alone,

Did I ever mention how I BUTCHERED the second wiper I tried to fix??? Ruined the *traces* because I didn't desolder the old relays good enough and used brute force a little too much. The next wiper I fixed, I used a desoldering tool that I bought from RS or FRY'S. It's just a suction device where you heat the solder up and trigger the desoldering tool and it sucks the old solder into a tube. It's better than the soldering wick (copper braid) that I bought prior to the desoldering tool.

I'm done with wiper talk. My advice is to Search and look for the name Asherwood and in one of his posts he gives a fairly good description of what is what and where it goes.. Like the link above.

HAILERS

For speeds over 40mph I prefer RainEx over wipers anyway.