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Does FA coding only change parameter or does it swap entire CAFD? - Printable Version

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+---- Thread: Does FA coding only change parameter or does it swap entire CAFD? (/showthread.php?tid=121007)



Does FA coding only change parameter or does it swap entire CAFD? - mitch32 - 16-07-2026

As title, does anyone know if modifying an FA (let’s say for a retrofit, where you change both type code and/or salapa options) and then perform coding per the FA, does that change only the parameters on a FDL or does it actually potentially completely swap to another version of a CAFD?


RE: Does FA coding only change parameter or does it swap entire CAFD? - Stratofortress - 16-07-2026

Coding only adjusts the parameters within the respective .ncd file according to the FA.


RE: Does FA coding only change parameter or does it swap entire CAFD? - jaramillo - 16-07-2026

(16-07-2026, 14:14 PM)mitch32 Wrote:  As title, does anyone know if modifying an FA (let’s say for a retrofit, where you change both type code and/or salapa options) and then perform coding per the FA, does that change only the parameters on a FDL or does it actually potentially completely swap to another version of a CAFD?

It can swap a cafd also, change bootlоаdёя etc..
For example typekey + buildate in a G80 differential module


RE: Does FA coding only change parameter or does it swap entire CAFD? - bradsm87 - 16-07-2026

(16-07-2026, 22:48 PM)jaramillo Wrote:  
(16-07-2026, 14:14 PM)mitch32 Wrote:  As title, does anyone know if modifying an FA (let’s say for a retrofit, where you change both type code and/or salapa options) and then perform coding per the FA, does that change only the parameters on a FDL or does it actually potentially completely swap to another version of a CAFD?

It can swap a cafd also, change bootlоаdёя etc..
For example typekey + buildate in a G80 differential module

The OP said "and then perform coding per the FA". What you're referring to is calculating SVT target, doing a TAL calculation and TAL execution, which is a lot more than just performing coding.


RE: Does FA coding only change parameter or does it swap entire CAFD? - mitch32 - 17-07-2026

I played around a bit and honestly think that there is no way just coding via FA would do anything other than change parameter in the CAFD. You’d have the do a big change to the FA then recalculate the SVT and make a TAL to change the CAFD file to another CAFD file.


RE: Does FA coding only change parameter or does it swap entire CAFD? - Node - 17-07-2026

Unless you are using рдят in the different chassis (series)...

P.S. But then you need at least to inject new CAFD, not just simple coding, which will fail.


RE: Does FA coding only change parameter or does it swap entire CAFD? - myztic - 18-07-2026

It depends on current flashdata in control unit