My wipers will simply will not turn off unless I turn the key off. Annoying!
Everything else about them is perfectly fine. They initially turn on only when I want them, they set to the speeds I want, etc. If I turn them OFF, they behave as though I set it on the slowest intermittent setting. I have to shut the key off and back on in order to make it stop. Madness!
I have checked fuses. I have tried swapping relays (at least one relay in the main box is for the wipers, so far as I can tell). All to no avail. If anyone has insight on what else to try or look for, that would be great. It really seems like a stuck relay issue to me... but I dont know where else to look. Or, what else could it be?
For anyone else that comes across this or a similar issue, here is more detail.
I checked/swapped all relays related to wipers with same type relays related to other things. No change. So I knew it had to be the wiper switch. Furthermore, when hooked up to a Ford specific OBD II scanner, indeed, it showed an issue for the Multifunction Switch.
...resolved the issue. Cheapest I found was around $90 online. Dealer cost was around $130. Part Number for my rig: SW5548
Either way, its a stupid rip off and a stupid thing to have go bad that should in theory never go bad. After all, there is usually a cause and effect when parts go bad. Such as water leak causes short. But no... this part failed without cause. Awesome. Of course, there is no aftermarket part for something this specific, so I expcet another failure without cause at some point.
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