Jeep jk wipers wont turn off

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Got windshield wipers that won't turn off? There are several possible causes. Learn why this problem happens and how to fix it fast.
How the Wiper System Works
Why Wiper Blades Won’t Turn Off
How to Fix Wipers That Won’t Turn Off
What would cause my windshield wipers to not turn off?
Why do my wipers stay on when turned off?
How do I reset my windshield wipers?

Greetings! Last week I got caught in a downpour in my naked '15 JKU. Now I have the following issues:

Headlights won't turn off
Wipers won't turn off
Turn signals don't work

Buttons on left side of steering wheel don't work (i.e. Step), but buttons on the right side (cruise control) DO work
Buttons on both sides of the back of the steering wheel to control the radio don't work.

Someone mentioned a multi-function switch. When I googled, I found that it's the left side turn signal switch. But I'm wondering if replacing that will fix ALL my problems? Especially since the wipers are controlled by the right-side lever.
Has this happened to anyone else? If so, what are all the components you had to replace to resolve? Thought I'd ask here before I go to a shop and they tell me I need to replace all my steering column components when it could possibly be something as simple as a fuse (although I'm sure I won't get that lucky).

Thanks in advance.

Yep, sounds to me like your MFS (multi-function switch) is bad. These are classic symptoms of a bad MFS.

Posted byu/[deleted]11 months ago

Hello,

I turned on my 08 JK 4 door this morning and the wipers were on full speed. I couldn't turn them off. I also couldn't activate my rear wiper or my headlights. My turn signals were also not activated when I turned them accordingly.

Any idea what it might be? Everything was working perfectly fine yesterday when I drove home. The only way to get everything to turn off is when I shut the car off.

Please help!

level 1

Sounds like a possible multifunction switch issue. This is not a guaranteed fix, nor does it mean the switch is or isnt the problem, but try to tap on the end of the shaft for your turn signal lever and see if anything changes

level 1

Sucks but it sounds like a TIPM issue since it was both wipers and multiple lights not working. You can reset it by unplugging the battery and holding the connections together for about 10 minutes to drain all the capacitors. Not guaranteed to fix it for long though. Good luck

level 1

Good morning everyone. Thank you for your help! Last night I watched a video and it explained that if I disconnected the battery and zip tied the positive and negative leads together and left then like that overnight the issue might be fixed. I was skeptical at first because it seemed like an easy fix. But it turned out to work. All my controls work now and I don’t have the wipers running! Might be a temp fix but I’ll take it

level 1

Unfortunately it sounds like a TIPM issue. Chrysler products are notorious for them and they usually manifest themselves as the electrical system seeming to be possessed. Other symptoms? Dash lights cutting in and out radio have a mind of it's own?

level 2

I was too focused on the speeding windshield wipers to even notice any dash issues. Radio worked just fine

level 2

Without seeing first hand its hard to say for sure, but this sounds like a stuck multifunction switch or clockspring issue. The TIPM issues are very common, but usually youll see some really goofy stuff with no correlation. Every concern listed is all coming from the same switch. Multifunction switches are fairly common amongst these wranglers too. Also a switch for $20-50 bucks is a good try before a $1000+ TIPM. Im a mopar tech and we actually see this quite a bit!

Got windshield wipers that won't turn off? There are several possible causes. Learn why this problem happens and how to fix it fast.

If you’re not a car person, you might not realize just how complex modern automobiles are. This even applies to windshield wiper systems, which can malfunction for several reasons. One of the most alarming and unexpected issues is when the windshield wipers keep wiping, even when turned off. If your wipers refuse to quit, regardless of the position of the wiper switch control, there are a few possible causes. Learn why this may be happening so you can take the right steps to fix it.

How the Wiper System Works
Why Wiper Blades Won’t Turn Off
How to Fix Wipers That Won’t Turn Off

How the Wiper System Works

Modern windshield wiper assemblies have several parts: the wiper switch, electronic wiper motor, linkage assembly, two wiper arms and washer fluid tank.

When you flip the wiper switch on, it activates a small electric motor, which spins and moves the linkage assembly. The linkage assembly converts the rotational movement of the motor into side-to-side movement of the wiper blades in their familiar arced pattern over the windshield.

When you turn the wiper switch “off,” it activates a mechanism in the motor called the park switch, stopping the flow of power to the linkage assembly and wiper arms once the wipers return to the bottom position.

Why Wiper Blades Won’t Turn Off

If your wipers keep working even after you’ve switched them off, it’s probably one of the following three problems. The only way to know where the issue comes from is by trial and error replacement of parts, so you might as well start with the easiest one first:

Faulty Relay: Every windshield wiper system has an internal electric switch mechanism called a relay. Automotive relays are small plastic boxes that plug into a particular location in a covered panel underneath the hood near a handful of other relays. A failed relay can mean the wipers won’t work at all, or they may continue to work even when turned off. Changing the wiper relay is the easiest approach and it might solve your problem. Wiper relays usually cost less than $20.

Faulty Switch: This is the switch that’s activated when you turn the wipers on and off, and it has lots of complex internal circuitry inside. Sometimes one or more of these circuits fails in a way that causes the wipers to stay on, often in low or intermittent mode. Changing the switch will be more challenging than replacing the relay because you’ll need to take part of the steering column apart. Look for online videos about this particular operation for your make, model and year of vehicle.

Faulty Park Switch: When the park switch fails, the system no longer tells the wipers to stop at the bottom of the windshield, and they often won’t stop at all. Many systems include park switches built right into wiper motors, so the whole motor needs to be replaced in that case.

How to Fix Wipers That Won’t Turn Off

Fixing wipers that won’t turn off almost always involves replacement of the malfunctioning part. Luckily, it’s pretty easy to find replacement parts online. So once you’ve determined why your windshield wipers won’t turn off, you’ll know what to buy. The job of replacing the part is often simple enough to do at home, but if you’re not confident pulling parts out of your car or aren’t sure what the problem is, consider taking your car to a mechanic.

What would cause my windshield wipers to not turn off?

A loose wire or bad connection is a major reason why the windshield wipers won't turn off after you have turned it off. It could also be because of a faulty relay, broken control, or a bad park switch. If this happens, your windshield wipers won't receive the proper command and won't turn off.

Why do my wipers stay on when turned off?

If the park switch is the culprit of your problem, then your wipers could even continue to run when your vehicle is turned off, pulling power from your battery. Bad wiring: A loose wire or bad connection could also cause your windshield wipers to continue to run even when they are turned off.

How do I reset my windshield wipers?

Here's how:.

Take off the plastic covering between your car hood and your windshield. ... .

Remove the center nut from the wiper motor using your socket wrench. ... .

Reposition your wiper blades in the correct position and reattach them to the motor by pushing the arm back into the motor socket and putting the central nut back on..