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Heated Seats Temperature Change

Posted: Tue Aug 11, 2020 5:48 pm
by saeb
Many asking for changes, so......

Module FCIM

High 7A7-01-03 xxxx-CCxx-xxxx
Medium 7A7-01-03 xxxx-xxCC-xxxx
Low 7A7-01-03 xxxx-xxxx-CCxx

C is what you are changing and nothing else.

Defaults are
High 5A = 45 degrees C
Medium 46 = 35 degrees C
Low 32 = 25 degrees C

Late model vehicles MY21.25+ may now be default of
High 78 = 60 degrees C
Medium 46 = 35 degrees C
Low 1E = 15 degrees C


Maths are HEX to DEC / 2

So if we want high to be 50 degrees and this works well on the newer seats the it will be DEC 50 multiplied by 2 to HEX = 64.

So high would now be 7A7-01-03 xxxx-64xx-xxxx 50 degrees C

I would do a quick calculator but do not have time today.

Sample for those that want it hotter by 5 degrees across the board.

High 7A7-01-03 xxxx-64xx-xxxx
Medium 7A7-01-03 xxxx-xx50-xxxx
Low 7A7-01-03 xxxx-xxxx-3Cxx

Re: Heated Seats Temperature Change

Posted: Sat Aug 15, 2020 8:37 pm
by rick1991_2
Hi Stewart
This is great, can I ask do you know how hot to go before we could expect things to start failing or melting. Looking for advice only and not going to hold you to it.

Re: Heated Seats Temperature Change

Posted: Sun Aug 16, 2020 1:01 am
by saeb
No idea, I not going to melt anything to try. It all in your hands.

Re: Heated Seats Temperature Change

Posted: Tue Oct 06, 2020 12:24 am
by brandonl249
hey stewart, can we make it as a ventilation rather than heating? up in the tropics its way to hot to ever need them.

Re: Heated Seats Temperature Change

Posted: Fri Oct 09, 2020 2:21 am
by saeb
Seats do not contain any components to make them work for ventilation.

Re: Heated Seats Temperature Change

Posted: Wed Jun 09, 2021 4:03 pm
by Dean082
Hi can someone please explain the maths to me not sure what values should be

Re: Heated Seats Temperature Change

Posted: Thu Jun 10, 2021 8:05 am
by saeb
Not sure what you mean. Can you be more specific.

Use Windows calculator change it to programmer mode.

Maths are HEX to DEC divided by 2

So if we want high to be 50 degrees and this works well on the newer seats the it will be DEC 50 multiplied by 2 to HEX = 64.

Re: Heated Seats Temperature Change

Posted: Thu Jun 10, 2021 10:11 am
by Dean082
Thanks that answered it didn’t know about programmer mode on calculator. New to FORScan