DIY Forscan enabled Cruise control XL models only

[Snax]

I thought the second to last four numbers were 8140 not 8141?

Sorry, there's been some confusion due to the back-and-forth with @Maverick2022XL, especially after I accidently typed some incorrect values. I've tried to go back and tidy things up, but I'll start over here in hopes of clarifying things.

Hypothesis: The hybrid and EcoBoost XL trims may need different BCM settings for optimal implementation of cruise control

Background
I believe that the original values that @Tyvemattis used to activate cruise control on his EcoBoost XL were collected from an EcoBoost XLT: BCM 726-04-05 CB28 8140 8872. People with EcoBoost and hybrid XLs have both reported successfully using this to activate cruise control.

Further research observation
But when I looked up several hybrid XLTs, I found that they were set to BCM 726-04-05 CB28 8141 8873.

Summary of differences
In short, this is what I've found when looking at as-built data from equivalent vehicles (without options):
Hybrid XLT: BCM 726-04-05 CB28 8141 8873
EcoBoost XLT: BCM 726-04-05 CB28 8140 8872

Question
The question is, of course, why are these different? Someone already discovered that ABS settings also need to be changed with hybrids (which I confirmed by comparing hybrid XLT and EcoBoost XLT as-built data), so it's reasonable to check whether other settings could also be different.

Discussion and next steps
The differences may be irrelevant, spurious, or erroneous. Or they may be important and beneficial. At the very least, they are puzzling and worthy of understanding. I really just need to get out, swap the steering wheel switches, and test this, but I've been really busy--and it is damn cold outside these days. If someone else wants to give it a try, please let me know what you find.

Conclusion
Edit: @Bushpilot has confirmed that BCM 726-04-05 CB28 8141 8873 works for the hybrid. While the technical difference isn't known, I will use the new value for my XL hybrid.

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[Bushpilot]

Sorry, there's been some confusion due to the back-and-forth with @Maverick2022XL, especially after I accidently typed some incorrect values. I've tried to go back and tidy things up, but I'll start over here in hopes of clarifying things.

Hypothesis: The hybrid and EcoBoost XL trims may need different BCM settings for optimal implementation of cruise control

Background
I believe that the original values that @Tyvemattis used to activate cruise control on his EcoBoost XL were collected from an EcoBoost XLT: BCM 726-04-05 CB28 8140 8872. People with EcoBoost and hybrid XLs have both reported successfully used this to activate cruise control.

Further research observation
But when I looked up several hybrid XLTs, I found that they were set to BCM 726-04-05 CB28 8141 8873.

Summary of differences
In short, this is what I've found when looking at as-built data from equivalent vehicles (without options):
Hybrid XLT: BCM 726-04-05 CB28 8141 8873
EcoBoost XLT: BCM 726-04-05 CB28 8140 8872

Question
The question is, of course, why are these different? Someone already discovered that ABS settings also need to be changed with hybrids (which I confirmed by comparing hybrid XLT and EcoBoost XLT as-built data), so it's reasonable to check whether other settings could also be different.

Discussion and next steps
The differences may be irrelevant, spurious, or erroneous. Or they may be important and beneficial. At the very least, they are puzzling and worthy of understanding. I really just need to get out, swap the steering wheel switches, and test this, but I've been really busy--and it is damn cold outside these days. If someone else wants to give it a try, please let me know what you find.

Conclusion
I'll complete this section after I, or someone else, can determine the significance of these differences.

I appreciate your efforts. My hybrid is apparently working well with the previously sanctioned values, but you make a reasonable case for there being a difference.

If I have the chance, I will go out today and verify what I currently have, plug your suggested values in, and report back any findings.

I expect that it will work, and we will not know for sure why the difference ... but if your numbers work, I will leave them there.

 

[Snax]

I appreciate your efforts. My hybrid is apparently working well with the previously sanctioned values, but you make a reasonable case for there being a difference.

If I have the chance, I will go out today and verify what I currently have, plug your suggested values in, and report back any findings.

I expect that it will work, and we will not know for sure why the difference ... but if your numbers work, I will leave them there.

Thank you!

 

[Snowbird]

I appreciate your efforts. My hybrid is apparently working well with the previously sanctioned values, but you make a reasonable case for there being a difference.

If I have the chance, I will go out today and verify what I currently have, plug your suggested values in, and report back any findings.

I expect that it will work, and we will not know for sure why the difference ... but if your numbers work, I will leave them there.

I do not mean to harp on this but your XL has the CoPilot 360 option and is working well with the previously sanctioned values. Did those values come from an XLT with the CoPilot 360 option?

The values TobyGadd obtained he said were obtained from XLT's without options.

I asked it earlier, but could the values be different between those with CoPilot and those without? Maverick2022XL replied no in post #61.

I appreciate all the hard work you guys are doing and information shared. Thank You.

 

[Snax]

I do not mean to harp on this but your XL has the CoPilot 360 option and is working well with the previously sanctioned values. Did those values come from an XLT with the CoPilot 360 option?

The values TobyGadd obtained he said were obtained from XLT's without options.

I asked it earlier, but could the values be different between those with CoPilot and those without? Maverick2022XL replied no in post #61.

I appreciate all the hard work you guys are doing and information shared. Thank You.

One of the issues facing Forscan tweaks and mods is the lack of transparency with how the codes were developed/discovered, which makes it difficult to determine which code(s) might be optimal for which configuration(s). While nobody is intentionally hiding anything (I think!), it's just not being posted.

I tried to start a "bank" of data from different well-documented vehicle configurations on this forum, so that anyone could check data against known "benchmark" vehicles from owners who frequent this forum--but another member basically shut it down by flooding it with critical posts, making real information difficult to locate, so I deleted it.

Forscan is an amazing tool, but it really needs solid data to work well. And the best way to get that data is to have multiple people post well-documented discoveries, and then to have other people verify their findings. Less noise = more quality.

 

[Bushpilot]

I do not mean to harp on this but your XL has the CoPilot 360 option and is working well with the previously sanctioned values. Did those values come from an XLT with the CoPilot 360 option?

The values TobyGadd obtained he said were obtained from XLT's without options.

I asked it earlier, but could the values be different between those with CoPilot and those without? Maverick2022XL replied no in post #61.

I appreciate all the hard work you guys are doing and information shared. Thank You.

Agreed. I will verify from an XLT with CP 360 first.

 

[Snax]

Agreed. I will verify from an XLT with CP 360 first.

Awesome, please post your results!

 

[Bushpilot]

https://www.mavericktruckclub.com/forum/threads/need-some-xlt-vins-please.9776/

 

[Bushpilot]

Didn't get it done today, likely will be able to tomorrow.

 

[Bushpilot]

I believe, based on my small sample (posted below) that @TobyGadd 's numbers are correct. As I said, it is a small (tiny) sample, but there is a clear pattern.

Summation - both sampled XLT hybrids have this code,

726-04-05

CB28

8141

8873

and both sampled XLT EB have this code.

726-04-05

CB28

8140

8872

This is regardless of any additional equipment installed, including CP360.

I am pleased that we had one "well configured" XLT in the mix, which followed the same pattern.

I will try the hybrid code in my truck tomorrow, and report back. I expect that it will work, and we probably will never know why the difference.

It appears that with the 8140 vs 8141, the last digit (0 or 1) distinguishes EB vs hybrid.

Regarding the 8872 vs 8873 vs 846F, it appears that the second digit (8 vs 4) "turns on" the cruise control, and the last two digit are the checksum.

Note: @Maverick2022XL has reported different values for the FX4 package, refer to his information for that configuration. https://www.mavericktruckclub.com/f...l-descent-non-fx4-all-models.8959/post-182546

== Data =====================

3FTTW8E34NRA28100 = XLT Hybrid, with CP360

726-04-05

CB28

8141

8873

3FTTW8E35NRA08986 XLT Hybrid, no CP360

726-04-05

CB28

8141

8873

3FTTW8F96NRA27159 = XLT EB, with CP360, AWD, Lux, etc.

726-04-05

CB28

8140

8872

3FTTW8E92NRA06522 = XLT EB, no CP360

726-04-05

CB28

8140

8872

For comparison to an XL
3FTTW8E31NRA08743 = XL Hybrid, no CP360

726-04-05

CB28

8141

846F

 

[Telemachus]

Thanks for compiling that.

FX4 seems a moot issue, as it's only available on trims that already have CC.

 

[Snowbird]

Thanks for the list.
I am wondering if when entering the hybrid code on your XL it would take care of the ABS change that Maverick2022XL found necessary?

 

[Snax]

Thanks for the list.
I am wondering if when entering the hybrid code on your XL it would take care of the ABS change that Maverick2022XL found necessary?

The donor XLTs that I’ve looked at also have the ABS changes, which suggests that they are necessary. But maybe someone will test them.

 

[Bushpilot]

Thanks for the list.
I am wondering if when entering the hybrid code on your XL it would take care of the ABS change that Maverick2022XL found necessary?

Is there a new ABS change? I did the one that Maverick2022XL had found previously, after Tyvemattis's work.

 

[Bushpilot]

I plugged the BCM change in, and it works. Nothing different noted on my short test drive.

I plan to leave this value in for the long term, as I believe it is correct for the hybrid.

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