Instructions to change an 03 Hemi PCM to an 05

[Redtruck-VA]

If you are skim active and you want to keep the skim function then you should beable to use any 05 ram pcm that is NOT skim active. When it is plugged in it will communicate with the installed skim module and activate the pcm making it skim active. If you don't want skim active, then remove the skim module in the steering column before installing the clean non-activated 05 pcm and the pcm will remain inactive.

 

[Oneslowram03]

If you are skim active and you want to keep the skim function then you should beable to use any 05 ram pcm that is NOT skim active. When it is plugged in it will communicate with the installed skim module and activate the pcm making it skim active. If you don't want skim active, then remove the skim module in the steering column before installing the clean non-activated 05 pcm and the pcm will remain inactive.

It’s my 1st time doing it, what will you recommend?

 

[Redtruck-VA]

I like to keep things as simple as possible, so I chose non-skim. I would remove the skim module around the key and use a fresh 05 pcm that you know is clean and non-active. Be specific when you have your VIN installed and clearly state you want 05 pcm software with your 03 VIN. If your supplier is unable to comply. You can send your 05 pcm to B&G Performance or a company that understands 03/05 pcm swaps. Like Painless. I have not had any issues as I bought a NIB 05 manual trans pcm and sent it to B&G to be custom flashed. My pcm is for off road only and doesn't have emissions. I originally used Diablo CMR remote tuning and a couple years ago switched to HP Tuning which allows me to tune the truck myself. I have a stand alone 46rh trans/manual valve body that works flawlessly. Chris is alot more current on the swap than I am and a great source of info.. good luck..

 

[Redtruck-VA]

Double post..

 

[Oneslowram03]

I like to keep things as simple as possible, so I chose non-skim. I would remove the skim module around the key and use a fresh 05 pcm that you know is clean and non-active. Be specific when you have your VIN installed and clearly state you want 05 pcm software with your 03 VIN. If your supplier is unable to comply. You can send your 05 pcm to B&G Performance or a company that understands 03/05 pcm swaps. Like Painless. I have not had any issues as I bought a NIB 05 manual trans pcm and sent it to B&G to be custom flashed. My pcm is for off road only and doesn't have emissions. I originally used Diablo CMR remote tuning and a couple years ago switched to HP Tuning which allows me to tune the truck myself. I have a stand alone 46rh trans/manual valve body that works flawlessly. Chris is alot more current on the swap than I am and a great source of info.. good luck..

Will I need the pcm and the harness? And Thks for helping me out boss, I’m just new to this so if I ask dumb questions my bad lol.

 

[Redtruck-VA]

No problem we were all new when we started.
I'm not 100% sure, but I think painless does both a pcm and harness as a package.

 

[Oneslowram03]

No problem we were all new when we started.
I'm not 100% sure, but I think painless does both a pcm and harness as a package.[/QUOTE

No problem we were all new when we started.
I'm not 100% sure, but I think painless does both a pcm and harness as a package.

No problem we were all new when we started.
I'm not 100% sure, but I think painless does both a pcm and harness as a package.

painless sell as a package?

 

[HemiLonestar]

No problem we were all new when we started.
I'm not 100% sure, but I think painless does both a pcm and harness as a package.

Hotwireauto will take your existing 03 harnesses (eng & trans) and modify them so they plug into the 05 PCM. I told Chris he should just offer a plug and play kit, with and without PCM but I guess wasn't worth it lol.

 

[Michael blackmon]

I seem to remember a typo on the pin-out where the plug number is called out wrong. Something like c1-32 is called out twice where as one of them is actually c2-32 . Chris has done his swap more recently than I did mine so he probably recalls it better than I. I swapped mine july 2015... here it is...View attachment 150784

Hey quick question, so on tcm pin 46 get spliced onto c1 pin 26 ?? And tcm pin 7 gets spliced on c1 pin 37 ?? Just want to make sure? The instructions say add but I assume he means splice to it

 

[SavedByGrace]

And in case the pictures disappear years later, here is a link to the photo album they are in
https://www.flickr.com/photos/159420730@N03/albums/72157662374612628

Epic man - dont know how i missed this, been searching for months to do the same. Chasing an issue on my truck - just has no power.. thanks for the work!

 

[SavedByGrace]

Hey quick question, so on tcm pin 46 get spliced onto c1 pin 26 ?? And tcm pin 7 gets spliced on c1 pin 37 ?? Just want to make sure? The instructions say add but I assume he means splice to it

Did u ever figure this out? Im busy now and noticed the same thing..