How To Use AlfaOBD On 2025+

[Jimmy07]

Ok - and just to be clear, when we take the truck to the dealer for the proxy alignment, we're asking them to only do a "proxy alignment" and they will know what that means? I know further back in the post, you said make sure they do not reset the truck to factory settings or something similar?

You’ll tell them you just need a proxy alignment performed, and to clear all DTC’s after that. You also need to tell them to make sure to NOT perform a “restore vehicle configuration” (very important).

 

[hammersfd]

PM sent

I'd be interested in this harness and guide as well.

 

[Jimmy07]

I'd be interested in this harness and guide as well.

Pm sent

 

[turbom5]

For anyone interested in setting up a witech account here is some really good step by step instructions directly from witech tech support. Wish I had this when I first started and have tried to explain process to couple people now, this should help anyone interested out.

Thank you for your interest in the wiTECH 2 J2534 software. To assist first-time users, here's a step-by-step guide to help you set up and use wiTECH 2 J2534 seamlessly. Please click on the links provided throughout this guide to access instructions, user guides, and the referenced websites.

1. Create MTSP Account:

Visit www.mopartsp.com to create your Mopar Technical Service Portal (MTSP) account from the Register link on the AFTERMARKET tab.

1. Download J2534 Application:

. Ensure your PC and independent software meet the requirements: wiTECH 2.0 J2534 PC Requirements - wiTECH 2.0 Knowledge Base

. Navigate to the Support tab within your MTSP account and download the J2534 application suitable for Windows 11.

. Ensure you select the correct region during the installation process (North America or Rest Of World).

Note: The VCI Setup Utility is intended for use with microPods and Mopar Diagnostic Pods. It is not required for the J2534 application.

1. Register J2534 Device:

Follow the instructions to register your J2534 device: 2nd - c - Registering a J2534 Device - Aftermarket - wiTECH 2.0 Knowledge Base

Approval may take up to 2 business days to process.

1. Create User Profile(s):

Once your J2534 device’s registration is approved, create and assign user profile(s) to the registered device: Mopar Technical Service Portal (Aftermarket User Guide) - wiTECH 2.0 Knowledge Base

New user(s) assigned to a device will receive an Okta activation link via email.

1. Set Up Okta MFA Login:

Create the Okta MFA login account for user(s) new to wiTECH 2 J2534: How-To Create an Okta Login Account - wiTECH 2.0 Knowledge Base

*Please note: 5 failed OKTA login attempts will result in the account being locked. Please contact the Help Desk for password assistance prior to reaching the lockout state.

1. Order Subscriptions:

Go to the Purchase tab on the left-side menu of MTSP. From the top menu, select the needed subscription tabs.

Note: All subscription sales are final and nonrefundable. Ensure your PC meets requirements, you are using a supported J2534 device, and you are servicing a supported vehicle.

. PC Requirements: wiTECH 2.0 J2534 PC Requirements - wiTECH 2.0 Knowledge Base

. Supported J2534 device: FCA US Verified J2534 Devices - wiTECH 2.0 Knowledge Base

. Supported vehicle: J2534 Supported Vehicles - wiTECH 2.0 Knowledge Base

1. Needed Subscriptions:

. wiTECH 2 or VIN subscription to service 2010 to present year vehicles.

. Tech Authority subscription to service 2010 to present year vehicles or to access J2534 Flash Files Download for supported 1995 to 2009 vehicles or to access the Mopar Service Library.

J2534 Flash Files Download: Stellantis Independent Operator Portal

Mopar Service Library: https://stellantisiop.com/iop/assets/public/user_guide.pdf

. ECU reprogramming subscription to program ECUs for 2010 to present year vehicles. Used, refurbished, rebuilt ECU programming and VIN rewriting are not supported!

1. Activate Subscriptions: (Click subscription links to view their function and activation process)

wiTECH 2 Subscription: 3rd - How-To Purchase and Assign a wiTECH 2.0 Subscription and Assign Users - Aftermarket - wiTECH 2.0 Knowledge Base

VIN Subscription: How-To Purchase and Use a VIN Based wiTECH 2.0 Subscription – Aftermarket - wiTECH 2.0 Knowledge Base

Tech Authority Subscription: 7th - How-To Purchase a TechAuthority Subscription - Aftermarket - wiTECH 2.0 Knowledge Base

ECU Reprogramming Subscription: Vehicle Reprogramming Subscription - wiTECH 2.0 Knowledge Base

1. Login to wiTECH 2 J2534 Application:

Launch the wiTECH 2 J2534 application from your desktop. Allow the application to complete its update check, then click on Connect.

. To connect to 2010 to present year vehicles, hover over Device and choose your J2534 device. Use your Okta MFA credentials and your chosen authentication method for login. Click on AM Prod.

. To connect to 1995 to 2009 vehicles, select Switch to Chrysler J2534 Flash Application.

Please note that the wiTECH Help Desk provides support for technical issues and questions related to the wiTECH 2 J2534 application and the Mopar Technical Service Portal (MTSP).

For vehicle support or diagnostic and service information, navigate to the Mopar Service Library via www.stellantisiop.com with an active Tech Authority subscription: https://stellantisiop.com/iop/assets/public/user_guide.pdf. Many J2534 manufacturers also provide vehicle support, you may want to contact your J2534 device manufacturer directly for assistance.

If you're experiencing issues with connecting to a J2534 device, or with its firmware or drivers, please contact the device manufacturer directly for support.

For more information regarding wiTECH 2 visit:

Aftermarket wiTECH 2 Knowledgebase: wiTECH 2.0 Public Articles - Aftermarket - wiTECH 2.0 Knowledge Base

MTSP User Guide: Mopar Technical Service Portal (Aftermarket User Guide) - wiTECH 2.0 Knowledge Base

FCA wiTECH YouTube channel: FCA wiTECH

Thank you,

wiTECH Help Desk

Dealers: 1-888-wiTECH 1 (1-888-948-3241)

Dealers: [email protected]

Aftermarket/Fleet: 1-844-wiTECH2 (1-844-948-3242)

Aftermarket/Fleet: [email protected]

 

[mickeyelam]

I don’t think it’s anything to do with stellantis or witech. I believe it’s the aftermarket j2534 pass thru devices just aren’t fast enough for flashes and proxi alignments. I can use the official blue Mopar Diagnostic Pod with witech, and do everything quickly and with ease on my truck, with zero hiccups.

Both Rlinks I have (x7 and green j2534) will connect to witech fine, although a bit slow. I can clear faults and change the tire pressure thresholds with them, and I can connect to every module, but I can’t get all the way through a proxi alignment. Sometimes they’ll be stuck starting the process, and sometimes they’ll get about 5-10 modules aligned, but then get hung up. The green light is always flashing rapidly through the process, so I know it’s communicating and trying to write, I just don’t think they’re fast or powerful enough to get through it.

Same with flash updates, they actually do a little better, they’ll get to about 80-90% on the flashes, but ultimately fail and revert back to previous flash (no corruption issues though).

Are there any updates on a J2534 device that's fast enough to do the proxy alignment? I'm out in the sticks, so having the ability to do that myself rather than taking it to a dealer (nearest is ~35 miles away) is important to me. I'd rather not pay for the MDP but if that's the route I have to go, I'll consider it, so any advice anyone may have on alternatives would be really appreciated.

 

[turbom5]

Are there any updates on a J2534 device that's fast enough to do the proxy alignment? I'm out in the sticks, so having the ability to do that myself rather than taking it to a dealer (nearest is ~35 miles away) is important to me. I'd rather not pay for the MDP but if that's the route I have to go, I'll consider it, so any advice anyone may have on alternatives would be really appreciated.

Can anyone that's successfully made changes and completed the Proxi alignment have a proxy back up to share of before and after changes for their BCM? Just the alfaOBD hex code proxy backup files would be great. Any changes you've made on the same truck ?

No it looks like we got stuck with the Topdon J2534 not completing the Proxi in WITECH for me, Jimmy. Jdharris. I believe jdharris also tried with car daq 3 and had it not align 4. So that's it for now. Until either it starts working again or someone finds another j2534 tool to try that works or we have a breakthrough on how to modify the BCM file without triggering the need for a Proxi alignment.

 

[RAMTEXAS]

I got the pre-2025 LED tail lights installed and working the way they’re supposed to. So far, it seems that no alfaobd changes are needed, but I’ll give it a few drive cycles to make sure.
I had to use a 2 to 3 wire turn/brake lamp controller, and a pair of switchback modules to make the brake lights and turn signals function properly.
View attachment 212170

so is a harness available yet or does end user have to improvise?

 

[Jimmy07]

Can anyone that's successfully made changes and completed the Proxi alignment have a proxy back up to share of before and after changes for their BCM? Just the alfaOBD hex code proxy backup files would be great. Any changes you've made on the same truck ?

Here’s a before and after of some changes on my truck. The actual proxy configuration settings start on the 26th pair, so some of the first 25 pairs might randomly change each time you make a backup, but they are irrelevant to the proxy alignment.

Backup 1

drive.google.com

Backup 2

drive.google.com

 

[Jimmy07]

so is a harness available yet or does end user have to improvise?

Yes, I can build them via Private Message for anyone interested.

 

[mickeyelam]

Can anyone that's successfully made changes and completed the Proxi alignment have a proxy back up to share of before and after changes for their BCM? Just the alfaOBD hex code proxy backup files would be great. Any changes you've made on the same truck ?

No it looks like we got stuck with the Topdon J2534 not completing the Proxi in WITECH for me, Jimmy. Jdharris. I believe jdharris also tried with car daq 3 and had it not align 4. So that's it for now. Until either it starts working again or someone finds another j2534 tool to try that works or we have a breakthrough on how to modify the BCM file without triggering the need for a Proxi alignment.

So, to your last point on modifying the BCM file...

Has anyone explored or have any experience with this site: FCA PROXI Tool — PROXI Alignment Editor (Jeep/Chrysler/Dodge/Fiat/Maserati)

I ran across that site over the last weekend. The author is based in Ukraine and seems fairly responsive. I've done a limited search on the forum and didn't find anything, so I'm hoping someone that knows much more about this topic than me can chime in.

I'd be REALLY interested to hear thoughts, etc.

 

[Abhi.K]

So, to your last point on modifying the BCM file...

Has anyone explored or have any experience with this site: FCA PROXI Tool — PROXI Alignment Editor (Jeep/Chrysler/Dodge/Fiat/Maserati)

I ran across that site over the last weekend. The author is based in Ukraine and seems fairly responsive. I've done a limited search on the forum and didn't find anything, so I'm hoping someone that knows much more about this topic than me can chime in.

I'd be REALLY interested to hear thoughts, etc.

Yes i was looking into it and saw the options available. Basically what it does is do a partial alignment. The tool itself is 500$ for software plus the hardware needed like a J2534 pass thru. Basically its a redesigned version of cda6 proxi reader. You will still need a SGW unlock tool and j2534 device. I have a script that does the same when it comes to reading a alfaobd backup. The thing with this tool is that you still don’t have all the 25DT options as its still reading it as a jeep WL so options like 14.5 screen and others exclusively for DT are not there.

This is what it does. If you make a change like radio screen size basically what it does is add the new information to radio and BCM only since those are the only two modules that need the data. If someone is willing to work with me and has alfaobd and sgw unlock tool we can test a few bcm only changes like disable triple honk etc…

Where this tool won’t work is keeping everything in sync because settings like changing trim level from Bighorn to Rebel etc. Since almost all the modules will need this data and this is only partial data updater.

 

[22Bighorn]

I made some changes in alpha obd and I'm going to take my truck in for the trailer brake recall. They should do a proxy alignment after they put the new trailer brake module in right? So basically I will get a free proxy alignment. Do you guys think this will work or will they have an issue with all the warning lights being on when I take it in.

 

[Abhi.K]

I made some changes in alpha obd and I'm going to take my truck in for the trailer brake recall. They should do a proxy alignment after they put the new trailer brake module in right? So basically I will get a free proxy alignment. Do you guys think this will work or will they have an issue with all the warning lights being on when I take it in.

They might just get your default factory configs to clear errors and fix trailer brake. From what i heard they have very limited special menu in witech that someone like service advisor has access to add oem mopar add on options so just make sure you tell them not to reset everything and just add or align to whats there. Idk much about that special access menu but that thing might default to pull only your factory configs from their database and change it but it’s worth a try. If they do revert to your factory configs, you can ask and see if they will allow you to update it using alfa and redo proxi alignment.

 

[turbom5]

One dealer tech wrote the recall pays 0.7h at warranty rate which is f all.

If you bring it in with errors they will likely want to fix that before attempting the recall which would either be a customer pay or warranty claim. I would think you'd need to tell them what you did and to leave the Proxi to end and not restore configutsrions. This would require a good relarionship with tech or service department and their willingness to trust that there is nothing else wrong with truck. I would think they would want to charge extra to do this as dealers typically don't care to do things for free or in this case to abade your non OEM changes. The module replacement would likely result in the same errors as you will have when you make a change in alfaOBD Anyway.

If you were to buy a Mopar trailer brake controller kit that is difference scenario. For that one they go on dealer connect and add the sales code to vin then restore all modules. That would wipe out any changes you made, but I think you're going in for the recall and knowing that they do a Proxi at the end hoping you can benefit. Yes it you've got people willing to work with you and know whats going on. No if they don't want to engage in this

I like the outside the box thinking everyone is doing. Hopefully soon we have a breakthrough !

 

[Jimmy07]

I made some changes in alpha obd and I'm going to take my truck in for the trailer brake recall. They should do a proxy alignment after they put the new trailer brake module in right? So basically I will get a free proxy alignment. Do you guys think this will work or will they have an issue with all the warning lights being on when I take it in.

I believe you should be good. Here’s the recall remedy instructions:

https://static.nhtsa.gov/odi/rcl/2026/RCRIT-26V059-9346.pdf

All they are doing is replacing a module, which in and of itself will create the same DTC’s that you will already have, and requires a proxi alignment anyway.
The only important thing is that, even though the recall instructions do not call for them to run the restore vehicle configuration routine, I would definitely tell them it’s important to you that they NOT do that.

 

[JDHarris]

I’m just following up here. The Mopar MDP+ successfully proxi aligned my truck, including the 4 modules that were consistently not responding with the Cardaq 3 Plus

The Rlink devices (J2534 and X7) could connect, but were very slow and unreliable.

The Cardaq 3 Plus could connect consistently, was significantly faster than the Rlink devices (though not fast), and could consistently interact. There were 4 modules it failed to proxi aligned though.

The MDP+ worked for everything I tried and was much faster than any of the other devices.

Rlink tried for about 10-20 minutes to proxi align and would fail, sometimes silently. Cardaq took 1-2 minutes to align what it could, but left 4 modules unaligned. MDP+ took about 5 seconds to align everything successfully.

 

[mickeyelam]

2a- Set up an AutoAuth account- AutoAuth

2b- Buy an AutoAuth subscription ($50/yr). This is for a one year subscription to unlock the gateway on an unlimited amount of VINs an unlimited amount of times. You can register up to 5 scan tools to it.

3a- Xtool Anyscan A30M scan tool- Amazon.com

This is the cheapest tool that I’ve used that was able to keep the gateway unlocked while alfaobd is connected to the truck.
I can verify that Topdon Topscan can’t do it, and Launch X431 Elite can’t do it.
If you already own a scan tool that utilizes AutoAuth, I’ll leave a note at the end of this gateway unlock section on how to verify it is keeping the gateway unlocked while connected to alfaobd.

So I'm fairly confident in confirming that a Thinkscan 689BT will not keep the SGW unlocked and allow AlfaOBD to access the system simultaneously. I'm not claiming to be an expert on this front, but based on Jimmy's description of how the system should work when writing the proxy config file, it's not allowing that to happen.

 

[Abhi.K]

Over the weekend i made some progress with upgrades without needing complete proxi alignment. I have tested this on @turbom5 and @jpbr2025

We did digital cluster upgrade and radio upgrade to add AUX cameras. The other BCM ONLY changes we did were unintended idle alert(triple honk), fog light dropout, DRL changes, Led lights upgrade to disable DTC for aftermarket bulbs.

If anyone is interested in these changes send me a private message.

For BCM ONLY changes Witech is NOT needed. All you will need is AlfaOBD, Xtool A30M with Autoauth.

For changes involving other modules like radio or cluster witech will be needed along with everything mentioned above and RLink j2534 device.

If the change (eg. tire size) involves the most common failing modules like TCM, DTCM, ORC, BSCM then only MDP will work at this time. At that point you are better off making changes in alfa and going to the dealer given the cost of MDP.

 

[jpbr2025]

Anyone in here have a bighorn with the factory installed digital cluster that can share their proxi file with me? Trying to figure out if any other changes need to be made to get the trim logo to display in the cluster

 

[Johnsamir]

For anyone wondering, all settings that @Jimmy07 shared worked perfectly!

Installed LED headlights and tails, all animations work perfectly and had dealership run proxy alignment. Honestly had 0 push back from the dealership, I was just honest with them and told them what I did. They charged me 1 hour of labor which is still cheaper than the J2534 tool (I guess it makes sense if you only are doing 1 update rather than multiple)

S/O @Jimmy07 for figuring all this out and helping with questions along the way.