4.5 gen interior in 4th gen

[LukeW156]

So I have a 2014 2500 G56 Truck, and i have a 2021 2500 parts truck sitting here and have been pulling parts off. Contemplating doing a dash swap, several things I’ve noticed have the same plugs but are definitely pinned out different such headlight switch, 4x4 switch, gauge cluster and instrument panel all have the same plugs between the years. I haven’t looked into climate controls or anything like that. I’m just curious as to if these things would work if I repin the plugs. I’m also curious if the cluster would work being that it probably is programmed way differently. Any help and knowledge on this would be awesome!

Looking for wiring diagrams for dash components.

[mod merge]

 

[H3LZSN1P3R]

There is no 5th gen HD yet the parts truck you have is a 4.5 gen… @Jimmy07 has done exactly what you want to do with his 17 so id let him chime in as he would know more than most

 

[LukeW156]

There is no 5th gen HD yet the parts truck you have is a 4.5 gen… @Jimmy07 has done exactly what you want to do with his 17 so id let him chime in as he would know more than most

Okay sweet. I’ve tried messaging him, I’ve seen his posts and it’s very obvious he knows what he’s doing lol. Hopefully he wouldn’t mind help me on this a bit.

 

[Brutal_HO]

Okay sweet. I’ve tried messaging him, I’ve seen his posts and it’s very obvious he knows what he’s doing lol. Hopefully he wouldn’t mind help me on this a bit.

Tagging someone with an @membername is a great way to get someone's attention when they find the time to login (or have @mention notifications enabled) and don't want to otherwise be bothered when busy.

Have you tried to send a Private Message (Start Conversation?)

All I see are cross-posts in multiple forums (don't do that) and a profile post on Jimmy's profile (That's not "messaging").

That said, posting in a thread benefits the membership site wide, if necessary, members can always take it private until the kinks are worked out then a solution posted.

Welcome to HDRAMS and good luck with your project.

Thread cleanup coming...

 

[LukeW156]

Tagging someone with an @membername is a great way to get someone's attention when they find the time to login (or have @mention notifications enabled) and don't want to otherwise be bothered when busy.

Have you tried to send a Private Message (Start Conversation?)

All I see are cross-posts in multiple forums (don't do that) and a profile post on Jimmy's profile (That's not "messaging").

That said, posting in a thread benefits the membership site wide, if necessary, members can always take it private until the kinks are worked out then a solution posted.

Welcome to HDRAMS and good luck with your project.

Thread cleanup coming...

Sorry for the cross posting. Didn’t realize it would cause issues. I’ve sent him message via start conversation and wrote on his account to try to get his attention being that I could really benefit from some help with this.

 

[Jimmy07]

So I have a 2014 2500 G56 Truck, and i have a 2021 2500 parts truck sitting here and have been pulling parts off. Contemplating doing a dash swap, several things I’ve noticed have the same plugs but are definitely pinned out different such headlight switch, 4x4 switch, gauge cluster and instrument panel all have the same plugs between the years. I haven’t looked into climate controls or anything like that. I’m just curious as to if these things would work if I repin the plugs. I’m also curious if the cluster would work being that it probably is programmed way differently. Any help and knowledge on this would be awesome!

Looking for wiring diagrams for dash components.

[mod merge]

I’ve done the complete 2020 interior swap into my 2017, and it’s a complete cascade of issues you are going to run into if you try this.
- To install the 2019+ dash, you need to install the 2019+ hvac box/ductwork, etc.
- To run with the new hvac box and components, you need to run the newer hvac module.
- Your existing BCM will receive implausible data from the new hvac module, and won’t control temperature correctly
- Installing the newer BCM requires the 2019+ RF Hub and PCM all married together. Since there no such thing as a 2019+ PCM with G56 tuning, that’s pretty much where you’ll be stuck
- The new cluster will basically function, but park assist animation won’t show up unless you swap in the new BCM and park assist module and sensors.
- If you use the new BCM, your existing ABS module will not communicate correctly, so you would need to use the newer abs module.
- The newer abs module is oriented differently for where the brake lines connect to it, and all the brake line fittings are different, so need to swap over all the newer brake lines.
- All of the wiring connectors on the newer dash instrument panel harness are different than the mating connectors of the body harness, and all have to be reworked/adapted and missing wiring added.

Basically, this is a huge project that required about 2 months of research and planning for me to pull off. I custom created my own new body and chassis harnesses, and created a binder with all new wiring schematics specifically for my truck. The difference with mine was, I have a 6.4 Hemi, so I was able to use the newer PCM with my engine (along with the newer transmission swap), where in your case, the required newer PCM doesn’t exist for your G56 trans.

What did you do TO your RAM today?

It was yesterday but I got his done. Added Husky front mud flaps. I wanted the RAM rubber ones but they are on backorder so I wnt with these for now. Don't look bad though just a little shorter than I would like. Installed my 60 gal RDS aux fuel tank/tool box. Technically gives me 110 gal of...

hdrams.com

 

[LukeW156]

I’ve done the complete 2020 interior swap into my 2017, and it’s a complete cascade of issues you are going to run into if you try this.
- To install the 2019+ dash, you need to install the 2019+ hvac box/ductwork, etc.
- To run with the new hvac box and components, you need to run the newer hvac module.
- Your existing BCM will receive implausible data from the new hvac module, and won’t control temperature correctly
- Installing the newer BCM requires the 2019+ RF Hub and PCM all married together. Since there no such thing as a 2019+ PCM with G56 tuning, that’s pretty much where you’ll be stuck
- The new cluster will basically function, but park assist animation won’t show up unless you swap in the new BCM and park assist module and sensors.
- If you use the new BCM, your existing ABS module will not communicate correctly, so you would need to use the newer abs module.
- The newer abs module is oriented differently for where the brake lines connect to it, and all the brake line fittings are different, so need to swap over all the newer brake lines.
- All of the wiring connectors on the newer dash instrument panel harness are different than the mating connectors of the body harness, and all have to be reworked/adapted and missing wiring added.

Basically, this is a huge project that required about 2 months of research and planning for me to pull off. I custom created my own new body and chassis harnesses, and created a binder with all new wiring schematics specifically for my truck. The difference with mine was, I have a 6.4 Hemi, so I was able to use the newer PCM with my engine (along with the newer transmission swap), where in your case, the required newer PCM doesn’t exist for your G56 trans.

What did you do TO your RAM today?

It was yesterday but I got his done. Added Husky front mud flaps. I wanted the RAM rubber ones but they are on backorder so I wnt with these for now. Don't look bad though just a little shorter than I would like. Installed my 60 gal RDS aux fuel tank/tool box. Technically gives me 110 gal of...

hdrams.com

Finished the front and rear end swap on my 2014 G56 truck, I’m very determined to do the dash swap in the truck, I really need help with finding the wiring diagrams, or what sources you used for them.
I do tuning and have someone that can write me a file for the 19+ pcm for the G56 trans.

I’m almost considering just buying the wiring harnesses out of the newer truck.

 

[SpartanWhiskey75]

IDK if this is a dead thread or not, but I plan to do this swap when my Evap or heater core goes. I have a 2018 with the 68rfe and the 6.7.

I've already cross-referenced the parts to make a 2019+ HVAC unit, but can't find the module that controls it.

Also does anyone have the part numbers for the new BCM, rf hub, and PCM? How do you program them to match a 2018 truck?

@Jimmy07 when you did your dash swap, did you have to replace the subframe to make the new dash work? Could you provide the info you have on pinouts to make the new cluster work? Do you still have the part number for the newer abs module and brake lines?

 

[LukeW156]

IDK if this is a dead thread or not, but I plan to do this swap when my Evap or heater core goes. I have a 2018 with the 68rfe and the 6.7.

I've already cross-referenced the parts to make a 2019+ HVAC unit, but can't find the module that controls it.

Also does anyone have the part numbers for the new BCM, rf hub, and PCM? How do you program them to match a 2018 truck?

@Jimmy07 when you did your dash swap, did you have to replace the subframe to make the new dash work? Could you provide the info you have on pinouts to make the new cluster work? Do you still have the part number for the newer abs module and brake lines?

So you are in luck having the 68rfe since they made those trucks still. I bought a wrecked 2019 and I’m ripping every bit of wiring out of it to swap into my cab, frame, and engine bay since I do not have the time or patience to make the harnesses in my truck work. It would take a lot of hours of cross referencing plugs and repining and adding the wires that are missing. The dash requires the entries hvac box, frame, and dash itself to be swapped.

I have a G56 truck so the only issues I’m gonna run into is making a Tune for the ECM. Which is being worked on right now.

If I was you. I’d try to do what I’m doing. Find a wrecked truck you can take all the wiring out of.

To have things programmed you need to have a dealer style programmer because these 19+ trucks use rolling codes, basically the dealer creates a code you have to punch into the programmer to access the module and reprogram the modules with correct vins. The codes only last a certain amount of time before a new one needs to be created. So finding matching modules is the hardest part so you don’t have to have anything reprogrammed.

Finding married ECM, BCM, RFHubs etc.. is the easiest, best way to get this done. If you’re trying to retro fit the new dash and make it work with the existing BCM. You’d need to know how to code and datalog can bus so you can make an interpreter or translator that will tell you BCM what to do when it gets certain signals from the new hvac module. Very complex and advance work to make that work.

I can help out with some part numbers.