Bronco ForScan Thread

[rugedraw]

Is ChatGPT correct?
I am trying to solve the folding mirror issue on my Latin American spec 2022 BS Wildtrak originally bound for Colombia. I'm using Forscan but I'm a beginner. I did manage to enable the Oil Life option on the Settings menu, however (small victories).
So I've been using Chat GPT to help on the folding mirror issue. My mirrors fold when button is pressed, and they auto-fold in the wrong direction when opening and locking when the option is toggled on the Sync menu after enabling with Forscan.
Chat GPT gives me this explanation. Is it correct?
Why the mirrors unfold when you lock (final, correct explanation)
This behaviour is intentional in this firmware:

• Manual mirror fold = temporary override
• Lock event = return vehicle to baseline configuration
• Baseline for this market = mirrors open

So when you:

1. Fold mirrors manually
2. Press lock

The BCM does exactly what it’s programmed to do:


That’s why it feels inverted. It’s not a bug — it’s a design choice for this market.

Why SYNC lets you enable the option (and why that’s misleading)
SYNC (APIM):

• Only controls menus and user preferences
• Has no awareness of what the BCM can actually act on

Ford reused SYNC software globally, but:

• LATAM BCM firmware omits comfort-lock mirror logic
• SYNC still exposes the menu

This creates the illusion of a missing setting — but it’s not missing, it’s never compiled in.

Why this cannot be fixed with FORScan (important)
FORScan can:

• Toggle existing logic
• Enable dormant features

FORScan cannot:

• Add missing BCM functions
• Inject NA/EU comfort logic into a LATAM BCM
• Change the lock-event behaviour without reflashing firmware

There is no As-Built value you can change to make this work.

Looks like ChatGPT is getting better. It used to spew out a bunch of nonsense when people would ask it about this sort of thing, but based on my knowledge of how these things work, it would explain why this has been so difficult to get to work.

If you drive a vehicle that has the mirror motors, but you cannot get the desired effect, then the only thing you could do is flash the BCM firmware from another vehicle in a market where those events do exist in the software.

However, this is going really deep into FAFO territory. The only way to do this would be to side-load the BCM software from another vehicle (assuming you are able to obtain the files and the bootloader), write your VIN to the BCM after the flash, and then you may have the ability to make FORScan changes that will make this actually work.

This requires advanced knowledge of module programming, and I would not recommend anyone try this without having FDRS access to recover the BCM should something go wrong. A bricked BCM will turn your BS into a 4,000lbs paperweight.

Edit: The correct procedure would be to back up the ab data of your BCM first, then flash the firmware, and then flash the ab data onto the new firmware. This would also write your VIN to the BCM at the same time.

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[Frenchy906]

Ok… so without scrolling through 26 pages…

Is there anywhere that shows what can be modified on a 2025? I just bought the obdlink cable and a cheap laptop… I want to know what I can do.

 

[NHD96]

Ok… so without scrolling through 26 pages…

Is there anywhere that shows what can be modified on a 2025? I just bought the obdlink cable and a cheap laptop… I want to know what I can do.

https://www.broncosportforum.com/forum/threads/bronco-forscan-thread.844/post-300998

 

[Frenchy906]

https://www.broncosportforum.com/forum/threads/bronco-forscan-thread.844/post-300998

Ya everything I’m seeing is relating to the pre-2025.

So, again… anything that shows verified moddable options for a 2025.

 

[rugedraw]

Ya everything I’m seeing is relating to the pre-2025.

So, again… anything that shows verified moddable options for a 2025.

The module architecture on the 2025+ BS is very similar to every other Sync 4 vehicle out there. For sure you want to avoid the known mods for the 21-24 model years. Try something simple like disabling the honk when you leave the vehicle running and exit with the keys or bambi mode.

 

[Stircrazy]

Ya everything I’m seeing is relating to the pre-2025.

So, again… anything that shows verified moddable options for a 2025.

2025 will be almost the same. just plug in forscan and see what options it gives you, as more stuff is found more will be added if they are popular changes. but bambi mode and stuff like that will all be the same.

 

[Frenchy906]

2025 will be almost the same. just plug in forscan and see what options it gives you, as more stuff is found more will be added if they are popular changes. but bambi mode and stuff like that will all be the same.

Ok, I’ve only messed with FORScan once, and that was in 2016… and I borrowed a friends laptop and connector… and I only added two things, but had a detailed listing of everything that could be adjusted and what values did what.

I actually had to buy myself a cheap laptop yesterday to run it, as I’ve been a Mac user since the early 2000s…

So, only the data that is modifiable will show up?

 

[Stircrazy]

Ok, I’ve only messed with FORScan once, and that was in 2016… and I borrowed a friends laptop and connector… and I only added two things, but had a detailed listing of everything that could be adjusted and what values did what.

I actually had to buy myself a cheap laptop yesterday to run it, as I’ve been a Mac user since the early 2000s…

So, only the data that is modifiable will show up?

there are two ways to use it, the one is thepopular things are incorperated into it and when you click on a section it will give you options and a enable/disablebuttons or somthing like that. thoes are the easy one. the other way to do it is to modify the coding, which I do not recomend for most people, and if they do go that way I sugesting only changing one thing at a time so if it does mess somthing up you can know what you did and reverse it easy.

I still have to downliad the newest release and hook up to my bronco to see if any new things have been added mysel. I had to buy a new adaptor, my old one was getting to be apain to use.

 

[bzdalderon]

Ya everything I’m seeing is relating to the pre-2025.

So, again… anything that shows verified moddable options for a 2025.

I was able to fumble my way through a tire circumference change with a lot of headaches today, but it was not like any of the guides I found on here. I'm being very cautious moving forward. There were extra steps I had to take, and even the functional circumference was stock 2202 and I think my upgrade for 235s were at 2215 once I GPS calibrated so I'm not too confident a lot of the older posts are holding water with the 25 BS BL.

 

[rugedraw]

I was able to fumble my way through a tire circumference change with a lot of headaches today, but it was not like any of the guides I found on here. I'm being very cautious moving forward. There were extra steps I had to take, and even the functional circumference was stock 2202 and I think my upgrade for 235s were at 2215 once I GPS calibrated so I'm not too confident a lot of the older posts are holding water with the 25 BS BL.

@Frenchy906 and I were trying to figure out how to get his new tire size calibrated, but nothing we did would clear the code. I'm sure I speak for both of us when we say please share what you did. I plan on putting bigger tires on ours when it's time to replace them.

 

[Frenchy906]

I was able to fumble my way through a tire circumference change with a lot of headaches today, but it was not like any of the guides I found on here. I'm being very cautious moving forward. There were extra steps I had to take, and even the functional circumference was stock 2202 and I think my upgrade for 235s were at 2215 once I GPS calibrated so I'm not too confident a lot of the older posts are holding water with the 25 BS BL.

It’s not nice to tease. Please share how you did it!

 

[bzdalderon]

So, here's what I came up with.

Just like most of the other tutorials, you start by opening the BCM, and and modifying your tire size there. I did some GPS calibration for my 235/65/17 AT3Ws, and input the value of 2215 mm's.

After you enter that you write, and move on to the ABS configuration. They have my tire size as an option there so I updated that as well, though this didn't seem to be critical in the process.

After this was done, I cleared errors, and then did the PCM relearn, though the errors popped back up immediately which I expected.

After the reset, the key that I spent 3 hours trying to find is that you now need to re-initialize AWD in the configuration module.

This is the most important part. It re-initializes the AWD info from the central config that you just updated. You do a full restart of the vehicle (wait 3 mins after opening door), then clear errors one last time (likely residual, not showing on dash) and you should be good.

This cleared all of my errors, my fuel economy, and speed are now reading correctly.

The only weird thing is I'm surprised by the tire size in mm that is actually working, so I may toy with it with other speed tools to ensure that it's actually correct.

That said, this all worked for me, and I was good to go after that final bit.

 

[rugedraw]

After the reset, the key that I spent 3 hours trying to find is that you now need to re-initialize AWD in the configuration module.

Thank you!

@Frenchy906 I think this is the missing link.

 

[Frenchy906]

I sure hope so!

 

[TORQUERULES]

I was going to update my tire size, but after changing I am seeing the transmission shift better (holding gear longer and not jumping to a higher gear do soon), and the speedo not far off. I might leave it be. I've done a lot of Forscan mods, so not afraid to try, just not sure I want to.

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