2021 Ram 1500 DT no 12v to windshield washer pump

[jhviz37855]

Hi guys. Does anyone have a bcm connector pin out diagram for a 2021 Ram 1500 DT? My windshield washer pump is not getting 12v. Has a good ground. Using Jscan I was able to get into the bcm and watch the settings as I pressed the washer button so apparently the bcm is getting the signal. If I command it to turn on it does not but the wipers do. I did a bcm reset with no difference. I can hear the internal relay clicking as I press the switch. I'm thinking maybe the internal non-serviceable relay soldered onto the board inside the bcm may have failed.
Thanks,
James

 

[GTyankee]

Have you check continuity, etc. at the Pump ?

I am not an electrician

 

[jhviz37855]

I have a good ground at the pump wire connector. The other lead does not deliver voltage when pressing the button. When you press the button you can hear it clicking under the dash and the wipers turn on for a few cycles but no pump voltage.

 

[RamDiver]

https://cardiagn.com/ram-1500-dt-wiring-diagram-wiper-washer-circuit/

The site above will not display results without you first disabling any ad blockers.

I was able to see the drawing after disabling ad blockers and hitting refresh several times.

Mopar Connection Repair Kit

connectorrepairkit.mopar.com

Enter year, platform and search Pump-Washer-windshield to see the connector/wire colors.

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[jhviz37855]

Thanks RamDiver. It took me a while to figure out how to save those not blurry. I zoomed them as far as the page allowed without cutting anything off and then hit screenshot in the browser settings and saved them. I appreciate it very much. I couldn't open the 2nd link. I was getting the dreaded 403 Forbidden error..

 

[RamDiver]

Thanks RamDiver. It took me a while to figure out how to save those not blurry. I zoomed them as far as the page allowed without cutting anything off and then hit screenshot in the browser settings and saved them. I appreciate it very much. I couldn't open the 2nd link. I was getting the dreaded 403 Forbidden error..

You're most welcome.

The second link can be a PITA sometimes.
It connects OK for me this morning but won't allow me to search properly.

I entered year & platform and was then able to scroll down to Pump-Washer-windshield.

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[jhviz37855]

You aren't going to believe this... I wasn't checking the wire on the pump. I pulled the connector off the low fluid sensor that's easy to get to under the hood. I had to pull the fender flares off and the lower facia off to get to the bottom grille bolts to remove the grille. I would definitely like to add something to this. Ok so I bought this 2021 Ram 1500 4x4 Rocky Ridge package brand new. it had 16 miles on and I took it for a ride and told the guy it's mine.... So I started using Rainex washer fluid in this vehicle. I had a 2012 T&C and never had a problem with it. So the nozzles got clogged and the dealer put a new set on since I was still under warranty. They never said anything about the orange stuff in the reservoir. so about 4 months later it happened again but this time I changed them and found out these forums that these vehicles don't do well with Rainex.... At the point of repair I drained the Rainex out and disconnected the hose under the hood and flushed it out real good with vinegar and blue old fashioned washer fluid. well guess what? I'm on my 4th set of nozzle's. (counting the original ones) This time I didn't pull down the hood insulation I just changed the nozzle without the hose attachment. I know why which also relates to early washer pump failure. Ok so you've probably seen threads or You Tube videos about these trucks where the washers don't work because the hose came apart under the hood or under the hood insulation.... well sure that's a quick fix but why did it happen?? The trucks that have the washer nozzles mounted under the hood, those nozzles are way too restrictive. I was hoping to buy aftermarket nozzel's but no luck Amazon says yea and sends me the ones that mount on top of the hood. I can blow right through those but the brand new Mopar ones for my truck I can't blow through them. They are way too restrictive which IMO causes the hoses to blow off, clogging and early pump failure.... Appreciate the help and also to others trying to diagnose the washer pump. The wire connector that you can get to easily under the hood is for the low coolant warning sensor.... I had to pull the grille....
Also like to add I never had any issues at all so far with this truck other than the washers...

 

[RamDiver]

Thanks for the update and detailed description.

You aren't going to believe this... I wasn't checking the wire on the pump. I pulled the connector off the low fluid sensor that's easy to get to under the hood.

The second link I listed above is often helpful for identifying connectors, when it functions properly.

When the search feature goes wonky, you can usually select the platform and scroll through the results, line by line.

If using a PC, use control F to word search the listing.

It will then provide a picture of the connector and wire colours.

I had to pull the fender flares off and the lower facia off to get to the bottom grille bolts to remove the grille.

I'm not familiar with the grill removal procedure on 5th gen but my 4th gen is a 10 or 15 minute job.

I used a long 3/8" drive extension bar on a ratchet to reach the lower mounting hardware.

After removal, if you can't reach the bolt head with finger tips, needle nose pliers might help.

Beware! The removed bolts may fall out of the socket and try to escape. Ask me how I know.

During reassembly, I held the lower hardware in position with needle nose pliers.

There are many YouTube videos available covering this task.

I would definitely like to add something to this. Ok so I bought this 2021 Ram 1500 4x4 Rocky Ridge package brand new. it had 16 miles on and I took it for a ride and told the guy it's mine.... So I started using Rainex washer fluid in this vehicle. I had a 2012 T&C and never had a problem with it.

You will find mixed reviews on the use of Rainex here at RamForum and elsewhere but, if you total up the positive & negative reviews, I'd say the negative results are far ahead.

I can blow right through those but the brand new Mopar ones for my truck I can't blow through them. They are way too restrictive which IMO causes the hoses to blow off, clogging and early pump failure....

Thanks for the valuable information, this will likely help others in the future.

Appreciate the help and also to others trying to diagnose the washer pump. The wire connector that you can get to easily under the hood is for the low coolant warning sensor.... I had to pull the grille....

It's always a pleasure to assist, especially when we get immediate updates with detailed explanations. Thanks for your contribution.

Also like to add I never had any issues at all so far with this truck other than the washers...

That's great news, hopefully you will experience many more years of trouble free service.

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[jhviz37855]

This is a really great forum... I have a 1969 Road Runner 440 4 speed. I restored in 2009. Is it ok to post a pic on here?

 

[RamDiver]

This is a really great forum... I have a 1969 Road Runner 440 4 speed. I restored in 2009. Is it ok to post a pic on here?

There are many knowledgeable and helpful members here with incredible skills on endless topics.

Posting any Mopar pictures are very encouraged, I'm looking forward to seeing your car pictures.

Random Car Picture Thread

Lets start a new thread that you can post funny or unusual old cars. I will start.

www.ramforum.com

.

 

[Wild one]

This is a really great forum... I have a 1969 Road Runner 440 4 speed. I restored in 2009. Is it ok to post a pic on here?

Damn man get those pics up ASAP on the thread RD provided,lol. Some of us are old enough to have grown up at the tail end of the muscle car era,

 

[RamDiver]

Damn man get those pics up ASAP on the thread RD provided,lol. Some of us are old enough to have grown up at the tail end of the muscle car era,

Who are you trying to fool?

We may have been alive back then but not too certain of the growing up part.

It's still a work in progress for many of us.

.

 

[PVilefort]

I am having electrical problems with my washer pump too. So what is the solution since that seems to have been dropped after the beginning of this tread?
My truck is also a 2021 RAM 1500 Classic Tradesman with the front 3 position seating and the standard cab with full length bed V-6 engine. I figured I would have to take off in fender liner to get to the washer pump, but could someone post the wiring diagram that they successfully downloaded? Thanks

 

[PVilefort]

The links in #4 do not work at all now even when using the desk top version of Chrome. Any other sources for washer wiring diagram?