How to BYPASS DEF Derate on Paccar MX

Get home with these steps even if your truck is def derated. If this helped you get home, let me know!

[leoalvarez]

I try this trick and really works, my truck derated to 5 mph in Clovis NM, I did what the video says and it took me all the way to Albuquerque to the dealer. Thanks a lot this video saved me a lot of money in tow bill. My truck is a 2012 Kenworth T700 with Paccar Engine.

[awetravelsOG]

I have 2023 Peter Paccar MX, it might helpful with the same engine and truck.

So what I did is I took 3 fuses out in the fuse box which is under the hood on the driver side, small box you won’t miss it.
I took A8 J1 L1, which were CAB ABS BATT, CAB ABS PWR, TRLT ABS.
And very important truck still didn’t shift after 5-6 mph, I had to switch to manual and I could drive up to 69 mph 😂 however truck gains speed very very slow under 35-40 mph. So it could be only useful to get to a dealer 10-20 miles. I wouldn’t drive further in this mode. You won’t have engine brake, ABS, TC.

[craigbrower]

Thank you! I'm echoing the comments below. Pulled 2 ABS fuses on a 2011 Kenworth MX-13 and was able to drive away. Saved $300 on a tow! Just had to listen to the alarms for a little while. Even better, the phantom DEF derate problem went away.. again.. before it got to the shop. My emission system hates me!

[lisandrogodoy]

Thank you so much for your video I was able to drive my truck home tonight because of you!!!

[twistedtrucker]

Just pulled the TractorABS fuse on my 2012 KW with a Paccar engine. Saved me hundreds on a tow bill. Drove it to the dealer for repair myself. This video definitely saved my butt.

[hannahgarnett]

this video helped me and my dad get back home today! Thank you! this needs more views. very grateful

[dbastardo]

Thanks man, I just did this on my 2014 KW T680 after I got the horrible message “max derate” on my dashboard. The fuses box that carry the 2 abs fuses is in the engine compartment right in front driver side on my truck. Only was able to use like 65% of the power but that was enough to get it to 65mph on leveled road. Thanks again. Shared 👍

[jashon]

This video saved me TOW MONEY and my stop light turned off after driving !! I ran out of DEF and didn’t know what to do once I put def back in and still was still derated !

[ntime]

Thank You saved my ass yesterday with this trick!! I have a 2012 384 with Paccar mx13 and it worked perfect. Dinged for the 5 hours I drive home but it worked.

[hubertalixmetellus]

Thank you so much. Just try it, it gave me 40 to 50 MPH and was able to make it to the nearest dealer.

[truckinwjustin]

You are a boss bro! Thank you! I've already spent too much on repairs this year lol.

[Chidtrucking]

Thank you so much. Was just about to call for a tow when i found this.

[bobafett-txxz]

thanks for this post! just pulled those fuses in my 2013 peterbilt 579. I got 300 miles to get home!

[vincej]

This video needs more views. Very useful. Thank you.

[frattello]

Thx, man, just bought a 2012 T700 automatic, 400k miles with a paccar a month ago and truck went into a 5mph derate mode after driving it about 60 miles on a flashing DEF light.. Code is J1939 which dealer said is a communication issue with the computer. I was able to bypass the derate just by taking only the 5amp ABS fuse out. No dealer to get me in till Monday and I have a hot load that needs delivered Mon and then home... About 2k miles total so hopefully I'll make it.. With no other problems either... Thx again a bunch... The chime though, can't get rid of it 😊

[PastorReggie]

Thank you bro have a 2012 KW with a paccar.. Hopefully this does the trick!!! Will let you know

[micaiasamparo]

Thank you very much. You’re video save me it really worked.

[yasmanigarcia]

Thanks dude saved me lots of tow money

[MsDenisejoyce]

Your my life saver man . Dpf filter it's full it says and pulled 3 fuses and I can go.. it dings but I'm moving

[biglover]

Hi I got a question I got a 2012 kenworth t660 mx13 the check engine light is on and the red light is on as well an the regen light is flashing but it won't let me do a regen it's not in derate yet if I take out the fuses can I drive it to a shop like that or does it have to be in derate before you can do it thanks