Any advice?

[NJ_TN Ram]

So I’ve been without operating wipers for nearly a year now. One day they just randomly decided to no longer work. I’ve replaced the wiper motor and fuses. Still nothing. Turn signals work and the wiper fluid still sprays when activated. So I’m guessing it has nothing to do with that actual multifunctional switch (I think that’s what it’s referred to as). Anybody have an idea what I can try next? I’m primarily a DIY type of person. I think most shops and dealers definitely overcharge quite a bit. So I’d rather not take it anywhere if at all avoidable. I have a 2014 Express 1500 5.7L Crew

 

[huntergreen]

Did you use a mopar replacement motor?

 

[GeauxinUp]

So I’ve been without operating wipers for nearly a year now. One day they just randomly decided to no longer work. I’ve replaced the wiper motor and fuses. Still nothing. Turn signals work and the wiper fluid still sprays when activated. So I’m guessing it has nothing to do with that actual multifunctional switch (I think that’s what it’s referred to as). Anybody have an idea what I can try next? I’m primarily a DIY type of person. I think most shops and dealers definitely overcharge quite a bit. So I’d rather not take it anywhere if at all avoidable. I have a 2014 Express 1500 5.7L Crew

Have you checked for voltage coming into the wiper motor plug? There should be a constant 12v, then 12v for high and low when switched for one or the other. You'd need to find a wiring diagram to find out what color wires go to what (unless somebody here knows).

 

[Jeepwalker]

It could still be the multifunction switch. Inside are several 'sliders' which slide (and make contact (switch on/off). So, even if one function works, other sliders may not. Or a small trace on the circuit board could be damaged or burned out. Best thing as mentioned above is to check there is voltage at the fuse, and wiper motor. Have you checked the relay?

If not, you could remove the multi-function switch and take it apart and have a look at the parts inside.

 

[turkeybird56]

Like Jeepwalker said above.

@Jeepwalker (clockspring)??? OP definitely needs to see if voltage at motor 1st than go backwards. Could OP pull wire from motor and hook up another 12 Volt power to see if motor even works? That is what I would do, BUT NEVER go off what My Boird Brain thinks.

Gotta be a break in line somewhere ref power/voltage. If the motor is 12 volt, maybe you could put a power source to the motor? Just a thought, not a suggestion as I do not know what the amps/volts are to the motor. Just a Boird Brain thought.

ADDED: The fuse may be good, but connections under TIPM may be bad. You would need to trace power line going into motor back. I would pull motor power line and put a tester on it and see if the power is even making it out to the motor>? After you verify that then if no POWER you have to trace backwards, and electrical stuff ALWAYS suks.

CAVEAT: Don't U miss the old days, where U just had a Wiper Mower, one speed, and U could cheat and just run a 12V cable to a utility switch you mounted where U drilled hole in dash to the motor, LOL. Same principal as those Chevy Horn buttons and bypassing starter relays, LOL.

 

[Jeepwalker]

CAVEAT: Don't U miss the old days, where U just had a Wiper Mower, one speed, and U could cheat and just run a 12V cable to a utility switch you mounted where U drilled hole in dash to the motor, LOL.

Yep!! Or jump off the horn! In fact I did that one time on a 60's car: Hooked the wiper motor to the horn wire. Temporarily. I had to drive my sister back to college which I wasn't planning on. Had been working on the car ...wasn't planning on it being a rainy day either. Didn't have time to so I pulled off the horn wire/s and ran a jumper to the wiper motor.

It worked great! This is back when cars had a chrome horn "Ring" inside half of the steering wheel. So you could just touch the horn ring with yer thumb (not like these days where you have to stiff-arm the air bag!). She thought it was cool. Still reminds me of it every once in a while. For me and my brother ...that was just the normal way of making things work in a pinch.

 

[Hagar1]

They turned a simple circuit into a mousetrap game! If memory serves me properly, when the switch is activated a signal goes to the bcm which turns on a circuit to activate the wiper motor. I would jumper the motor to see if it works. Then it becomes an issue of isolating whether it is bcm or tipm.

 

[NJ_TN Ram]

Thanks for the advice guys. I’m gonna try these suggestions on my next round of days off. Luckily I have multiple vehicles to drive. Even when it does rain and I decide to drive my Ram, the rainwater just rolls off the windshield. So I’ve been able to manage so far.

 

[jayoz]

Rain sensor played me like that once
May help

 

[wrench78]

I was thinking either clock spring or if your truck has it, the rain sensor system.

 

[Marshall]

I am not sure what the rain sensor would make any different, I can run the wiper if its wet or dry.
I would bet clock spring, a wiring diagram and a volt meter would be the best way, if you don't want to go to a shop.

 

[turkeybird56]

OP really needs to confirm power at motor and maybe jump to see if it works. After that chasing the electric gremlins which so suks.

 

[Burla]

What items are on that TIPM fuse? If the solder joints in the TIPM is bad no current will pass, sometimes it will fail intermittently, but then kaput. Like others said, is it getting juice at the motor?

 

[62Blazer]

As mentioned, you need to do at least some base level diagnostics and testing. And that does not mean randomly replacing parts. Get a wiring diagram and start tracing out the power and ground feeds to the motor. Get a test light or voltmeter and start checking if you even have the proper power and ground going to the windshield wiper motor. Keep in mind that is could be power side or ground side switched. Power side switched means you turn 12v power on and off to control the motor, and you have a constant ground. Ground side is the opposite, you have constant 12v power but it turns the ground on and off. For the fuse, you need to check and make sure you actually have power through the fuse. If there is no power going into the fuse it doesn't matter if it's good or bad. If the fuse has but no power at the motor, start tracing the wiring and looking for a break. Again, make sure you have ground going to the motor also.

 

[Tominator223]

Check relay & ground. Maybe turn on high and lightly tap motor with a fine percussion instrument.

 

[Dusty]

When dealing with electrical issues, throwing parts at it does not often render first time success.

Regards,
Dusty
2019 Ram 1500 Billet Silver Laramie Quad Cab 2WD, 5.7 Hemi, 8HP75, 3.21 axle, 33-gallon fuel tank, 18” wheels. Build Date: 3 June 2018. Now at 126909 miles.

 

[Jeepwalker]

I did a google search and found this online for a 2014 Ram Wiper no-work situation. Not sure if it'll help, but there's plenty out there if you do a search:

"Based on my experience, this issue is caused by an issue with the wiper motor or the integrated power module (fuse block). You can test/check the motor by disconnecting the connector at the wiper motor, then jumper B+ to pin B and ground to pin C. If the wiper does not run, replace the wiper motor. If there is voltage on the brown/gray wire, check to see if the wiper motor park switch pulls this voltage to ground when in the park position. If there is no voltage on the wire when disconnected from the wiper motor. Or you can check for a bad park switch in the wiper motor by connecting a test light between B+ and the park switch circuit to the wiper motor. With the wipers turned on, the test light should blink on and off as the park switch in the wiper motor closes to ground when the wipers are at the bottom of the windshield. Replace the motor as needed."

 

[RamDiver]

Thanks for the advice guys. I’m gonna try these suggestions on my next round of days off. Luckily I have multiple vehicles to drive. Even when it does rain and I decide to drive my Ram, the rainwater just rolls off the windshield. So I’ve been able to manage so far.

You should be able to find the schematic drawing you need here.

Use Control F on a PC to search the document.

I've added 2 PDF attachments which should provide schematics and the theory of operation for the windshield wiper motor including the relationship to the BCM.

.