2013 RAM Cummins Limp Mode No Communication to Reductant Control Module / Diagnosed w/ DYVO / FIXED

I've got a 2013 RAM 2500 with a 6.7L Cummins stuck in limp mode. It cannot force regen until the codes present are fixed. Scan tool data shows no communication with the RCM, part of the DEF system. BUT don't throw a module at it, follow along to see how to properly diagnose this issue to prove if the module is really at fault.
This was the perfect situation to show how mighty the DYVOmeter is. When it comes to any circuit testing, it'll be your go-to meter.
If you like what you see and want one for yourself, use the code KBUELLDIAG to get $20 off each and any kit.
DYVO is Colorado based and want to help every level technician. Reach out to them, they are kind people! Check out their Instagram @dyvo.us, UA-cam at DYVO Automotive, and their website www.dyvo.us
Follow what I do daily on Instagram @kbuelldiag and thanks for watching! Feel free to reach out if you have any questions.

[@caliautotech21]

He’s a wizard Harry!

[@diegorubio1073]

Awesome diag . I’m saving up to add a Dyvo to the arsenal

[@kbuelldiag2867]

Wicked man! It’s super useful!

[@nzdiagnostics2010]

Awesome video's. Your amazing at diagnosing, keep it up. 💯

[@kbuelldiag2867]

Thanks dude! I will have more coming 🤙

[@TehArtfulDodger]

Thanks for the tip i was stuck on the side of the road in limp mode
Was able to put that wire on my positive terminal and reset the limp mode

[@kbuelldiag2867]

Glad it helped!

[@Seancoyne89]

Good video. Just bought one of these at Vision KC

[@kbuelldiag2867]

Wicked stuff, glad you found my videos. I hope they help 👌 any questions you have feel free to reach out!

[@william5787]

Hello 👋 from Australia 🇦🇺 just found you.
I wish I had my youth again, I'm starting to do diagnostics now.
Getting old to be on the tools 🔧 🧰 & poor vision 🔍
This video has sold me on to purchase this product.
Congratulations on DYVO investing in our future meaning you Sir. USA 🇺🇸 🌎 🇺🇸 👏 .
This video was 1000% the best tutorial, not Volts !!!!
Are you still happy as of 2023 closing using the Dyvo?
May you excel in 2024 young Man.

[@Alex-jm6fk]

Good diag. But in this scenario I usually just use a headlight bulb

[@VaporGearhead]

Nice diag work

[@f.crepairs2461]

Nice!

[@JosePerez-bz4ix]

Can you do a draw test demonstration with the DYVO thanks

[@jeremyengle4324]

Hi thanks for posting this video. I am having this same issue and locared the red/gray wire on the tipm and it fell right out. Do you have a video on how to repair this wire in the tipm? Also, im not sure exactly which location it fell out. Is there a diagram somehere that will show me this? Again thanks for the video!

[@chryslertechnician3439]

I gotta get a dyvo

[@henrypfeiffer6933]

I’ve got the P208A Reductant Pump A Control Circuit/Open code on my 2014 Cummins but no DYVO to diagnose. Man is that module hard to reach. Any tips apart from looking for faulty wires?

[@griffyddreed2503]

🤯🤯🤯

[@anthonychambers1858]

I have the same reading on my 2018 Ram and I replaced the def pump and I’m still in the same place. Where are you located don’t trust the dealer they tried to say all my fuel injectors was all bad and tried to make me replace all of them for $20,000 excluding a def line and def injector fuel filters. So I replaced the line def injector and the fuel filters for about $450 and been going every since now I have that code and it is still in limp mode. Is there a way I can contact you

[@CorM-bread369]

How can I get in touch with you. I'm interested in a truck Nd if you can fix I'll pay you whatever you charge

[@kbuelldiag2867]

Where are you located?

[@user-mq1sx4jq7y]

😮

[@spot-onautomotivediagnosti7583]

First comment 👀😁

[@johncurrent1660]

What code was it throwing to start with

[@victorme6678]

Where do i find one?

[@kbuelldiag2867]

Go to dyvo.us and use code KBUELLDIAG for $20 off 👍