Wiper Control Module
 

On the 94 F150 there is a "wiper control module" located behind the glove box. In fact to get to it you have to remove the glove box. Does anyone know what this thing does? I'm having some funky problems with my wiper system and would just like to know what this thing does.

That module controls all of your wiper and washer functions using the steering column control as an input. What problems are you having ?

When I push the washer button, I can hear it clicking behind the glove box.The wipers come on but no fluid comes out. The problem is intermittent. The pump is good, hoses are open, and nozzles are clear. I tend to think the switch is OK because it must be making contact in order to make the control module click.

I know you said the module clicks but just for grins and it only takes a few minutes pop the cap off the end of the switch on the column then remove the screw and slide off the rotating part. Now clean the contacts with alcohol or contact cleaner then lube with petroleum jelly or some light grease then pop it back together and try it again. I've had to do this with every ford I've owned with this setup.

Ok, I'll give it a go. Thanks

wiper control module
 

Mine did exactly the same thing... clicking near the glovebox, some of the intermittent settings wouldn't work, etc. Anyway, you need to change your MFS (turn signal switch). I did last weekend and it's perfect now. Advance has them for sixty bucks and all you need is to unscrew 3 phillips in the belly of the steering column molding and 2 T20 torx screws that hold the switch on. Unplug the two plugs and put the new one in. 30 minutes and I guarantee this will fix it. The guy at Advance will probably mention how many he sells, too.

You can buy a new one but all they need is a cleanup.

I finally got around to working on my wipers ( now that it's raining again) and the cleaning of the contacts in the switch seems to have done the trick.

Thanks a bunch, guys!:banana:

I also have the same problem with the 1994 Wipers. I have changed the motor, NO HELP. I changed the Switch, NO HELP. Cleaned all contacts, NO HELP. Last thing I can think of to do is replace the wiper control module. HELP !!!!!!!!!!!!!!!!!!!!

Well I commend your efforts with the search function, but this thread is just a wee bit old. Start a new one.

I took it apart
 

I took it apart to clean the contacts but a spring fell out and I can not figure out where it sits. I also can't figure out the proper position to put it back together. Any advice?

Russo who the heck r u to moderate crap in here

That post was made 3 years ago - who are YOU to complain? This isn't the first thread you've gotten cranky in.

I did the pull and cleN and mine worked fine after . Don't pay att to glc and his redirections to get an answer

No body would be cranky in here if it had answers and not MODERATIONS

I am having a similar issue with my 1993 windshield wipers. I have replaced the switch and the module, both of which I now think were not bad, as neither solved the problem. None of the interval functions work. When I turn off the wipers, they stop where they are and do not go all the way down. When I use the fluid, the fluid works and the wipers work, but they will not stop working until I actually turn off the truck. Any suggestions would be helpful. Thanks, Jim

wiper problem
 

I watched a video online to test the wiper moter. Using a test light I checked to see if power was going to the motor and then proper ground. I determined that the motor was bad. I replaced it - which took a while and it works great. I found a new one for under $50.00. :thumbsup:

Exact same issue
 

I'm having the exact same issue here... what fixed your problem Jim?? Already tried new switch, no change....please help!!!

Most probably the motor.

I can hear a clicking from behind/ under glove box..

That's the wiper module - it's supposed to click. Very rare for anything to go wrong with them.
If you already did the switch, it's most likely the motor.

alright, thanks for the input!
I will try the motor next

I've got a 93 F150, 4.9 4x4 and have intermittent problems with the wipers. Sometime they would not work at all, sometimes they would just stop. Sometimes they would move at like half speed and jerky. If they stopped, I would smack the dash and they would restart. I was going to try to pull the module (now that I know where it is, but I think I'll try the switch cleaning trick first. And for what it's worth, I don't care how old a thread is as long as it helps. Its not like my truck is getting any newer. Thanks for the tips!

I cleaned the wiper switch and while I'm sure that it will help prevent some future issues, it didn't fix this problem. I found the wiper delay module, (fun to remove) and found that it was quite warm, suggesting that the motor was hung up. So I watched some You Tube videos on removing the wiper motor, then got a new motor from O'Reillys and changed it out. Problem solved. I did note that people were having problems removing the arm from the motor shaft. I soaked mine with penetrant, then used a crescent wrench between the motor and the arm to pry the arm off. The motor shaft appears to be tapered, which explains the difficulty, so for future help, I put a dab of anti-seize on the shaft.

What was your fix for this? I just recently purchased a 94 150 and I am having this issue.

Wiper issue
 

What was your fix for this?