Limp mode?

[jrussell.5811]

Pulled a very large box truck out of the mud from the side of the road and engine light immediately came on truck was definitely struggling and was pulling out at only 1000 RPM is this lint mode is this something that I can reset by disconnecting the battery any opinions appreciated.

 

[Darksteel165]

You need to scan the codes.
Limp mode is generally engaged if you really broke something like the engine to prevent further harm.

The other vehicle was likely way too heavy for you to be moving, sounds like you are in for an expensive repair.

Do post back what you find.

 

[jrussell.5811]

It

You need to scan the codes.
Limp mode is generally engaged if you really broke something like the engine to prevent further harm.

The other vehicle was likely way too heavy for you to be moving, sounds like you are in for an expensive repair.

Do post back what you find.

it really jsut seems like the truck is in high idle. I’m going to go out and start it up and see if the code cleared, and if not I’m going to disconnect the battery and do a factory reset. I will let yall know what i find. I’ll get the codes scanned if the problem persists

 

[Darksteel165]

It

it really jsut seems like the truck is in high idle. I’m going to go out and start it up and see if the code cleared, and if not I’m going to disconnect the battery and do a factory reset. I will let yall know what i find. I’ll get the codes scanned if the problem persists

If you have a scanner you should get the code scanned before resetting anything so you know for the future if something happened.
If you don't have a scanner good time to buy one from Amazon.
Just my 2 cents though.

 

[Threesuns1]

It

it really jsut seems like the truck is in high idle. I’m going to go out and start it up and see if the code cleared, and if not I’m going to disconnect the battery and do a factory reset. I will let yall know what i find. I’ll get the codes scanned if the problem persists

If you are sincere in wanting help with this issue information on the truck would be helpful. Also more info on the act of pulling the box truck out: IE were you on dry pavement, how hard did you need to push your truck, etc.

 

[HSKR R/T]

It

it really jsut seems like the truck is in high idle. I’m going to go out and start it up and see if the code cleared, and if not I’m going to disconnect the battery and do a factory reset. I will let yall know what i find. I’ll get the codes scanned if the problem persists

Disconnecting the battery will clear the codes, unless the problem persists. If you don't pull the codes, with a scan tool, first, you may not know what caused the issue, and might mask an issue that will pop up again later at an inopportune time and be more serious costing more to fix

 

[jrussell.5811]

You need to scan the codes.
Limp mode is generally engaged if you really broke something like the engine to prevent further harm.

The other vehicle was likely way too heavy for you to be moving, sounds like you are in for an expensive repair.

Do post back what you find.

Throwing code U0594

 

[jrussell.5811]

If you are sincere in wanting help with this issue information on the truck would be helpful. Also more info on the act of pulling the box truck out: IE were you on dry pavement, how hard did you need to push your truck, etc.

It was on wet pavement. I put it in tow hall mode, as well as turned off, track control. It didn’t spin it all it actually like idle down till about 1000 RPM and pulled the truck out relatively easily and then as soon as we were done the engine light was on. I just posted what the code is but it’s a 2023 ram 1500 built to serve addition with the Etorque

 

[bigdodge]

Code U0594 RAM: Invalid Data Received From Hybrid Powertrain Control Module

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and

www.autocodes.com

 

[Darksteel165]

Throwing code U0594

I could be wrong but I think that is a safe code to remove. That alone shouldn't indicate a problem.
It likely got confused because of all the extra weight on the truck I bet.

There was a recall for that code but it was only up till 2021 and it was for the torque generator itself.

I would reset and just drive it like normal.

 

[Darksteel165]

Code U0594 RAM: Invalid Data Received From Hybrid Powertrain Control Module

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and

www.autocodes.com

That link has nothing of value in it...

This is the tsb for the older Rams
https://static.nhtsa.gov/odi/tsbs/2021/MC-10187133-9999.pdf
U0594 - Implausible Data Received From HCP.
Ie pointless code, not wiring harness like in that url.

 

[HSKR R/T]

Throwing code U0594

I would say you are safe to rest the code, probably don't with the scan tool, and see if it comes back

 

[Richard320]

Topping out at 1000 rpm... Does it also sound weird, like it has asthma? If so, that's a symptom of a bad throttle motor. The throttle plate goes into a fixed default position and the RPM is controlled by advancing and retarding timing and cam timing. It's a very distinct sound.

If it was me, I'd erase codes and see what happens.

 

[bigdodge]

That link has nothing of value in it...

why
it told what the code was and other thing
all you did was post a tsb that may or may not help

all info helps
whether you believe it or not

 

[Darksteel165]

why
it told what the code was and other thing
all you did was post a tsb that may or may not help

all info helps
whether you believe it or not

The code U0594 "Invalid Data Received from Hybrid Powertrain Control Module"
The website you linked had some bogus descriptions of the code, not what the code even is, and nothing else on that page showed ANYTHING, looks like they are trying to sell you something.
Even if you try and copy text from that website they hijack your clipboard and fill it with a stupid link to their website, nothing any website should ever do and I would avoid using it.

Looks like it's crap made by AI which is known to lie. Even has a link in the top right to some "AI Chat" crap.



To each their own though, I would rather have less accurate information then bogus info from some sketchy site.