Modifying As-Built Data Guide

[ponie1992]

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[Spart]

Is it possible to change trans gear ratios in forscan? Installed a tr3160 in my 5.0 and have a power loss in 4th gear. Ive only read about rear end ratio changes so far.

Sounds like the same kinda thing that happens when you change tire size in FORScan but don't run a PCM relearn.

The PCM is probably expecting to see certain values from either the trans sensor or the ABS sensors. Check for P codes.

And I agree that a tuning adjustment is most likely going to be your cure, not anything you can do with FORScan.

 

[natepcbfl]

Hey folks I need to ask a noob question. I have a tune on my car using a SCTx4 and JLT CAI. I want to go down to a local shop and do some changes with their Snap-On tool as in turning on the sill light circuit (I had 50th aluminum sills without the lights), both fog lights on with blinkers, fogs with high beams, no honk when closing the door, ect ect. Are these separate computers they are accessing and writing to? Its one thing to brick a phone by messing with the programming its another to brick a car...

 

[Spart]

Hey folks I need to ask a noob question. I have a tune on my car using a SCTx4 and JLT CAI. I want to go down to a local shop and do some changes with their Snap-On tool as in turning on the sill light circuit (I had 50th aluminum sills without the lights), both fog lights on with blinkers, fogs with high beams, no honk when closing the door, ect ect. Are these separate computers they are accessing and writing to? Its one thing to brick a phone by messing with the programming its another to brick a car...

There's always a risk you'll brick something. This thread is about FORScan, not whatever Snap-On tool is being used. But the same general rules apply: you want to keep the car on a trickle charger, you want to make sure the device you are plugging into the car is in good working order (if you're using a laptop, is the battery stable?) and you want to make sure you have a way to return to factory configuration should you screw something up.

 

[ponie1992]

Made my first change tonight using forscan. Got rid of that damn honk when closing the door with engine running. Such a relief to not hear that!
Thanks to all who have contributed to this thread!

 

[DeZypher]

Edit: to make post shorter+update

A Year ago I couldn't Enable Police Dark Mode on my 2017 Ecoboost Mustang and now I couldn't get my coworker's 2017 Ecoboost Mustang to work either.

Update::

Finally Got It To Work!!! Had to change a couple of things but at last it works lol.

 

[swooshdave]

Edit: to make post shorter+update

A Year ago I couldn't Enable Police Dark Mode on my 2017 Ecoboost Mustang and now I couldn't get my coworker's 2017 Ecoboost Mustang to work either.

Update::

Finally Got It To Work!!! Had to change a couple of things but at last it works lol.

Do you recall what you did differently?

 

[DeZypher]

Do you recall what you did differently?

Yes. I changed 2 things + police mode but I want to make sure wether or not you need to change both things or you can do it with just changing one of em. I'll post the info once done playing around with it.

 

[DeZypher]

With the info Nick the Car Guy provided.

I found out you need to change:
726-58-02 :::
from 0000-0000-0087 to 0101-0101-0187

And also activate Dark Mode

But I couldn't get the Silent Mode option to show on the dash.

Proof::

 

[natepcbfl]

There's always a risk you'll brick something. This thread is about FORScan, not whatever Snap-On tool is being used. But the same general rules apply: you want to keep the car on a trickle charger, you want to make sure the device you are plugging into the car is in good working order (if you're using a laptop, is the battery stable?) and you want to make sure you have a way to return to factory configuration should you screw something up.

So your saying you dont know if the data is located in the same ECU and if changing it will do anything? As for the "whatever Snap-On tool" is being used" its the same one they use in the dealerships to change the As Built Data. The dealerships when the 15s first came out would turn on that circuit for the sill lights but, they are now refusing. I just happened to get lucky and met a person who is willing to let me use theirs. I didnt see anything spoken about in the frame of question I had in the whole thread so at that point I thought it was acceptable to ask about changing As Built Data in an AS Built Data thread.

 

[Spart]

So your saying you dont know if the data is located in the same ECU and if changing it will do anything? As for the "whatever Snap-On tool" is being used" its the same one they use in the dealerships to change the As Built Data. The dealerships when the 15s first came out would turn on that circuit for the sill lights but, they are now refusing. I just happened to get lucky and met a person who is willing to let me use theirs. I didnt see anything spoken about in the frame of question I had in the whole thread so at that point I thought it was acceptable to ask about changing As Built Data in an AS Built Data thread.

Dealerships do not use the Snap-On product you're referring to, and your S550 doesn't have an ECU, it has a PCM.

I hate to be pedantic but the terminology matters here, throwing jargon around and not knowing what it means will confuse those of us who DO know what the jargon means.

You might see third party repair shops using Snap-On products to make changes to modules - but that's because Snap-On has developed a product that can work on multiple makes and is more cost effective for a general repair shop. Ford dealerships are going to be using something like a VCM-II that is actually made by Bosch.

Regardless, the Snap-On software isn't going to allow for byte-level changes like FORScan does, and you're not going to find much help on how to use it here.

Again, this thread is about FORScan. You might know that if you had read the OP. It's free Windows software, you just have to come up with the adapter. The ODBLink MX Bluetooth is a good option, but you will need a Windows machine with bluetooth in order to utilize it.

 

[natepcbfl]

Dealerships do not use the Snap-On product you're referring to, and your S550 doesn't have an ECU, it has a PCM.

I hate to be pedantic but the terminology matters here, throwing jargon around and not knowing what it means will confuse those of us who DO know what the jargon means.

You might see third party repair shops using Snap-On products to make changes to modules - but that's because Snap-On has developed a product that can work on multiple makes and is more cost effective for a general repair shop. Ford dealerships are going to be using something like a VCM-II that is actually made by Bosch.

Regardless, the Snap-On software isn't going to allow for byte-level changes like FORScan does, and you're not going to find much help on how to use it here.

Again, this thread is about FORScan. You might know that if you had read the OP. It's free Windows software, you just have to come up with the adapter. The ODBLink MX Bluetooth is a good option, but you will need a Windows machine with bluetooth in order to utilize it.

-------

"Dealerships do not use the Snap-On product you're referring to"
I have seen the Ford dealership here use this exact Snap-On tool, which is why I said what I did.

"and your S550 doesn't have an ECU, it has a PCM. I hate to be pedantic but the terminology matters here, throwing jargon around and not knowing what it means will confuse those of us who DO know what the jargon means."
I hate to be pedantic but, the S550 DOES have an ECU, ECU is a generic term meaning (Engine Control Unit). However you are correct they dont call it an ECU Ford calls it a EEC-?? (Electronic Engine Control). You say using the wrong terms will confuse the people who do know, which I gather you are saying you do and if so, I guess I didn't confuse you as you seemed to know what I was talking about and did what this forum is for an corrected my mistake of terminology. However I dont think saying ECU is enough to confuse a knowledgeable person as a knowledgeable person knows what ECU stands for and what it is used for in a car.

"Regardless, the Snap-On software isn't going to allow for byte-level changes like FORScan does, and you're not going to find much help on how to use it here."
I did not ask how to use

"Again, this thread is about FORScan. You might know that if you had read the OP. It's free Windows software, you just have to come up with the adapter. The ODBLink MX Bluetooth is a good option, but you will need a Windows machine with bluetooth in order to utilize it."
I know what the thread is about I read the whole thing and I also said that in my last post, "you might know that if you read my post".


I greatly apologize for coming to a forum to ask knowledgeable people for assistance and using the wrong terminology, being someone who is not as knowledgeable as others, hoping the more knowledgeable people understand what I am trying to ask for assistance with. All I was asking was if the settings for the tune for the engine are stored on the same, box (please insert the proper nomenclature here). I am not sure about some of this which is why I figured I would come to this forum to ask, in hopes there are people who are more knowledgeable here than me that would be willing to assist in answering a very general question since they seem to be editing the controls I want to change.

 

[Spart]

Dude, I don't know what else to tell you except that you're not going to get anywhere with a Snap-On product.

It's meant to replicate what the VCM-II can do, which is to say make canned changes to as-built among many other things.

This thread is NOT about canned changes to as-built, that's the whole point.

 

[natepcbfl]

Dude, I don't know what else to tell you except that you're not going to get anywhere with a Snap-On product.

It's meant to replicate what the VCM-II can do, which is to say make canned changes to as-built among many other things.

This thread is NOT about canned changes to as-built, that's the whole point.

As I said from the very start. I was only wondering is the accessories programming is in the same box (insert proper nomenclature here) as the tune for the car. Not asking what a Snap-On tool can or can't do as I already know what It can do and how to use it. Not asking what should I do, not asking for a comparison of the two. I just figured the thread with changing programming would be a good place to ask where the programming is stored. You read waaaaay to far into my question. I am just using it to turn on the MyColor sill lights and a couple other things that I know it can do. It was just a general questions about the vehicles programming and where its stored.

done...

 

[TexasRebel]

As I said from the very start. I was only wondering is the accessories programming is in the same box (insert proper nomenclature here) as the tune for the car. Not asking what a Snap-On tool can or can't do as I already know what It can do and how to use it. Not asking what should I do, not asking for a comparison of the two. I just figured the thread with changing programming would be a good place to ask where the programming is stored. You read waaaaay to far into my question. I am just using it to turn on the MyColor sill lights and a couple other things that I know it can do. It was just a general questions about the vehicles programming and where its stored.

done...

Those things are all going to be in the Body Control Module.

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