DIY: Add Aux Switches to 19+ Ram 2500 Laramie 6.7L

[untam3d1]

Is there still a kit for purchase looking to do this ASAP. Thank you for this

 

[RHD_Godzilla]

Part 1 of 2 on how to install build the harness. Part 2 will be the install. I’ll try to move the video to the top thread once I’m at my desktop. Hope this helps

 

[RHD_Godzilla]

Video also added to the 1st page. Will add part 2 as soon as I get it edited.

 

[RHD_Godzilla]

I don't know if this will help anyone but if you have any trouble using the 63347-1 terminal you can use the yazaki 7116403802 as an alternative. It looks just like the oem terminal on my 2019 but I cant speak for other years

I FINALLY got around to testing those terminals and they DO in fact work better than the other gold ones. I used them when I uninstalled my original kit to make a video using my updated kit. Thanks for the Info

 

[RHD_Godzilla]

Part 2 of the install. Ill probably make a video of building the SBC as well as programming through AlfaOBD.

 

[Sleepersilverado]

Afternoon, I have a 2020 3500 cummins with air assist. The part number from Jimmy07 list is 68476035AB,When i plug that into mopar parts it comes back as 68578995AB. According to Stinson87 spreadsheet I need 68376645, when I plug that into mopar parts it changes it to 68578995AB. I have ordered htis panel for the second time with part # 68578995AB and both times i have recieved 68578995AA. I have that panel installed and went into alfa and enabled. Now nothing works, not even my original buttons for the Alt trailer, EB, ETC,ETC. Called the dealer and he said the AB and AA part numbers are the same??

In alfa i went into "CBC Features-Configuration Aux Switches PTO" then selected "six switches"

Any thoughts???Thanks in advance.

 

[Driftwoodsvt]

2025 Power Wagon here. Will this will for my setup?

 

[RHD_Godzilla]

if you have the aux PDC the harness will work

 

[jsalbre]

2025 Power Wagon here. Will this will for my setup?

It will not. The 2025 uses a different electrical system.

 

[RHD_Godzilla]

2025 Power Wagon here. Will this will for my setup?

Sent message

 

[2K6TBSS]

@RHD_Godzilla I just sent you a DM for a harness

 

[Brutal_HO]

2025 Power Wagon here. Will this will for my setup?

Only the Cummins trucks have a factory AUX PDC.
PW doesn't have an AUX PDC or any of the wiring for the dash panel.
2025 won't be able to be programmed.

 

[Driftwoodsvt]

Only the Cummins trucks have a factory AUX PDC.
PW doesn't have an AUX PDC or any of the wiring for the dash panel.
2025 won't be able to be programmed.

Oh? That sucks. I am adding a 30" LED light bar with my Chassis Unlimited bumper and wanted to run it on factory switches.

I wasn't sure what this meant.

 

[Brutal_HO]

Oh? That sucks. I am adding a 30" LED light bar with my Chassis Unlimited bumper and wanted to run it on factory switches.

I wasn't sure what this meant.

View attachment 91950

Aux switches might be new for 25 on PW considering the bus change, but trailer steer (the TTPG package) and Aux switches were always mutually exclusive. Perhaps now a dealer sales code option to add or change, can't say.

 

[docwood]

Ive had quite a few messages about building a Harness "kit" to add the AUX switches to yalls trucks. If anyone else is interested feel free to PM me. Not looking to make a ton of money on them, just helping out the community.
Kit would include:
-jumper harness from back of Centerstack to the OE harness
-harness from centerstack to AUX PDC to control the Accessories (in the same wire loom as above)
-Wiring for PDC
-Gray OE plugs for side of PDC (only PDC side pinned)
-pins to wire the Acc side of whatever you add later to the truck
-Fuses for PDC except the 25A fuse because they don't come in the pack, I buy so I provide a 30A fuse
-1 extra pin of each connection just in case something happens while hooking everything up. The PDC connections can be a pain so it's easier and cheaper to just provide an extra set of pins.
-Wire diagrams printed out and shipped with the kit. Same ones posted in the thread.

Then shipped to you.. Once again not looking to become Bill Gates on these things. Just know that when I did mine it would save me a ton of time if I had a premade harness.

Only thing you would have to source is the relays. You can get them on Ebay. If you really want me to get them, I can you would just have to pay for the actual cost of them/shipping.

I was dying to ask if you would consider doing just that. Sign me up! I have a 23 and have already purchased the aux switches 68578995AB. Even though I'm a retired dentist my 75 year old hands just don't have the dexterity they once did. Watching your thread I was totally impressed with the precision and attention to detail you utilized in building the harness.
Cecil

 

[RHD_Godzilla]

Video for building the Security Bypass cable. I’ll also Add if to the first post. I’ll also add it to its own thread for those who don’t need it for AUX switches.

 

[untam3d1]

Wrapped up the install on my truck. Very satisfied. Thank you for the write up learned lots

 

[TYW]

Just got my AUX switches installed on my 2020 6.7 Big Horn.
Big thanks to this thread for all the knowledge.

Ordered my switch panel from a MoparPartsGiant ( Part # 68476031AA) for my case
Huge shout out to @RHD_Godzilla who I bought my harness/ Jumpers/ Fuses/ and Relays from in a kit.

Took my time, his videos are great for referring to and Harrisons Garage video for which Alfa OBD items to turn on.
Labeled my grey plugs with a label maker to know exactly what ports are for what switch once installed.

Cut out the mess of my existing light bars and cleaned up all the wiring hooking up my front bar to #1 and rear pods to #2.
Landed both negatives to one of the body grounds. If I were to have something hooked to all 6 switches I can imagine it might get crowded, anyone put a negative terminal post stud or bus bar to have a place to neatly put all your ground if you have 6 or more.

 

[Brutal_HO]

Just got my AUX switches installed on my 2020 6.7 Big Horn.
Big thanks to this thread for all the knowledge.

Ordered my switch panel from a MoparPartsGiant ( Part # 68476031AA) for my case
Huge shout out to @RHD_Godzilla who I bought my harness/ Jumpers/ Fuses/ and Relays from in a kit.

Took my time, his videos are great for referring to and Harrisons Garage video for which Alfa OBD items to turn on.
Labeled my grey plugs with a label maker to know exactly what ports are for what switch once installed.

Cut out the mess of my existing light bars and cleaned up all the wiring hooking up my front bar to #1 and rear pods to #2.
Landed both negatives to one of the body grounds. If I were to have something hooked to all 6 switches I can imagine it might get crowded, anyone put a negative terminal post stud or bus bar to have a place to neatly put all your ground if you have 6 or more.

That ground in the plug is the same chassis ground that's everywhere else, they just provided a place to plug one in or, as you say, run it to a busbar.