AnotherOldJeepGuy

Look closely at the contacts for the solenoid on the control board, I believe that was my issue...

If I were in your sitch I guess I'd swap the headlight bulbs just to rule out it isn't just a bad bulb. And of course check the voltage with DMM at the bulb connector.

I got an email from the Jeep folks that says they are planning to honor "all eligible badge requests". They didn't go into detail how they define an eligible badge request. But the potential is still out there.

I have bench.

I am the original owner of my particular 90 and I can vouch that these have never been touched since the day I drove it off the lot. Judging from this conversation, it would appear there are at least 2 different OEM nuts for this use .

Got the PCB cleaned up and put it back in for a test, all wiper operations are good! The vinegar was very foggy so it did pull off some crud. The large cap that @The86manche noted before actually looks fine (no deformity) once viewed with better focus looking at that cap. I think the most likely future failure may be the solenoid spring. I may take a look at the HW store to see if they have any springs that look the same, but swapping it would be risky cause the same "looking" spring may not have the same tension and I am not sure I could get the old one off and back on still in tack if needed. I'll soak it with a drop or 2 of oil before final reassembly and hope for the best! The old formed foam was dried up and crumbling so I threw it out and did not attempt to replace it. Not sure it was useful anyway.

Gotcha, thanks! I will let the vinegar clean probably for 24 hours, don't really know it needs that long but that's how long I soaked my blower control, then let it dry real good and then see what happens.

Opened up the module to take a look. You get in by drilling out four rivets that holed it together. The coil switch contacts are very ugly, and there's ugly elsewhere, but I don't see any opens or stressed components with visual inspection. (Some of what looks ugly is really because the component side had a formed block of foam covering everything and small bits of that foam remained stuck to components when I remove it.) I couldn't really get zoomed in clear focus to get a good view of the contacts to post, but they did look like they needed cleaned pretty badly. I got my ac blower speed control contacts working on my car before by soaking the assembly in vinegar so I'm going to try cleaning up this assembly the same way and see what happens. I may re-flow the solder joints as well, some are less shiny that others, although I can't see any are visually not connected.

Great! I plan on taking a look just to see if I can find a visible fault I can just solder or jumper, probably over the weekend. If that doesn't work I would be glad to send mine your way for core or repair. Stay tuned!

@The86manche, do you still have any working to sell, or are you willing to repair mine? I just pulled mine and restored non-intermittent functions, so it would appear mine is bad. I might attempt to look for a visible cracked solder or trace I can reconnect, but I don't have replacement parts....

I read on another post that you can bypass the intermittent control module by just plugging the two connectors together, so I did. I now have LOW and HIGH speeds at their respective control positions and WIPER PARK works. I assume this means the intermittent control module is bad. Seems like that post I read about bypassing it also talked about repairing it, or not, don't remember for sure. Otherwise I'll check here in the for sale area for one.

Here's a bit more detail in case it tells something: Switch Position Action OFF No Wiper Movement - Doesn't PARK, it just stops when you switch OFF DELAY Either continuous Wiper Movement in LOW speed - OR - No Wiper Movement (If Wiper Movement when switched to DELAY then Wiper Movement continuous at same rate regardless of Time Position) LOW No Wiper Movement HIGH Wiper runs faster than what it runs on DELAY if it runs on DELAY

I accidentally intertwined this thread with the one I started to document what it took to fix mine, I am going to try to get things back in that thread now so if you have a follow up, please put it there..

So now I have a brand new motor installed and new bushings, and sadly for me, I am 100% sure I got it hooked up correctly because it FAILS in the exact same way. I only get wiper motion when the switch is on high ( So what @Pete M said back on the 16th should have been where I went). I think I can say it's not the motor (odds that a new one fails in the exact same way is pretty small). So now what? I did look at wires at the motor, they look completely fine.

Well I kinds got off on the wrong thread, but I'll try to pull in back into this one. I asked in thread Upgrade your windshield wipers for GOOD! 2001 XJ wiper motor swap asking for wiring connections for installing the WPM447. @Gojira94 replied with that info! I'll copy it here since it was my intent to document this from start to finish in this thread, so that info was: Looking at the back of the new connector on the new motor, where the wires from the motor go into the connector, if these are the colors: ___________ | X 2 3 | |_4__5__6__| Then: New motor/function/old connector color: X (no pin/ no wire) 2 White - Park - goes to Gray wire of old connector 3 Red - Switched 12V - goes to Blue wire of old connector 4 Yellow - High - goes to Red Wire of old connector 5 Green - Low - goes to White wire of old connector 6 Black - Ground - goes to Black wire of old connector I had also captured some pics so I'll link them here again to get things back where they were supposed to be,,,, Now I'll continue here