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Unlink dash backlights from screen brightness

Posted: Mon Nov 14, 2022 8:40 pm
by GenieMan
Is it possible to unlink the brightness of the dash lights from the brightness of the screens?

I prefer to have the screens at the 2nd lowest brightness at night but it makes the dash lights so dim.

Is there any kind of change I can make, even if it just makes the dash lights at 100% brightness?

Re: Unlink dash backlights from screen brightness

Posted: Tue Nov 15, 2022 7:46 am
by saeb
There is no way simple fix for it but the below may do what you need.

Have never tried the below so cannot say what how it works or exactly what it will affect and what interior lighting it will affect.

Backup BCM and test as below.

Interior Lighting

Dim Day Level


726-31-01

Day 1 xxxx-xx0C-xxxx
Day 2 xxxx-xx0D-xxxx
Day 3 xxxx-xx0E-xxxx
Day 4 xxxx-xx0F-xxxx
Day 5 xxxx-xx10-xxxx
Day 6 xxxx-xx11-xxxx
From Dimmer Switch xxxx-xx12-xxxx

Dim Night Level

726-31-01

Night 1 xxxx-xxxx-00xx
Night 2 xxxx-xxxx-01xx
Night 3 xxxx-xxxx-02xx
Night 4 xxxx-xxxx-03xx
Night 5 xxxx-xxxx-04xx
Night 6 xxxx-xxxx-05xx
Night 7 xxxx-xxxx-06xx
Night 8 xxxx-xxxx-07xx
Night 9 xxxx-xxxx-08xx
Night 10 xxxx-xxxx-09xx
Night 11 xxxx-xxxx-0Axx
Night 12 xxxx-xxxx-0Bxx
From Dimmer Switch xxxx-xxxx-0Cxx

Dim User Day Level

726-31-02

Night 12 0Cxx-xxxx-xxxx
Day 1 0Dxx-xxxx-xxxx
Day 2 0Exx-xxxx-xxxx
Day 3 0Fxx-xxxx-xxxx
Day 4 10xx-xxxx-xxxx
Day 5 11xx-xxxx-xxxx
Day 6 12xx-xxxx-xxxx

Re: Unlink dash backlights from screen brightness

Posted: Tue Nov 15, 2022 9:48 am
by GenieMan
I shall give this a go tonight and report back. Cheers

Re: Unlink dash backlights from screen brightness

Posted: Tue Nov 15, 2022 6:24 pm
by GenieMan
Hi Stewart,

Tried above but only seemed to lock the settings to what ever level I input in asbuilt.

I don’t suppose there’s any anything else I can try? If not all good, thanks for helping me to try this out at least.

Cheers

Re: Unlink dash backlights from screen brightness

Posted: Tue Nov 15, 2022 6:28 pm
by saeb
No, is nothing else.

What you said is kind of what I expected, so you can seperate them but just need to decide on a fixed brightness is all.

Re: Unlink dash backlights from screen brightness

Posted: Tue Nov 15, 2022 9:23 pm
by GenieMan
saeb wrote: Tue Nov 15, 2022 6:28 pm No, is nothing else.

What you said is kind of what I expected, so you can seperate them but just need to decide on a fixed brightness is all.
Hi Stewart,

Maybe we are misunderstanding each other? So when I set 726-31-01 to 0B for example, it just locked the brightness to max (at night), when I press dash light keys, the menu pops up but doesn't change. It seems the dash lights brightness (and screen) matched what ever I set to in Forscan, just as if I changed brightness using the controls per normal.

Is what I described different from what you were expecting? Hope this makes sense. I’m actually totally okay with a fixed brightness so long as I can get the screens to be dim at night, but backlighting bright. I dont really change the brightness every anyway.

Also what should expect to change from the 3rd set Dim User Day Level ? Not sure I understand.

Re: Unlink dash backlights from screen brightness

Posted: Tue Nov 15, 2022 9:36 pm
by saeb
Understood, it is setting a static brightness instead of using the buttons.

There is nothing left to split and achieve what you want unfortunately, I was hoping what I gave would just do ambient lighting and not cluster or APIM. Worth a shot anyway.

Re: Unlink dash backlights from screen brightness

Posted: Tue Nov 15, 2022 9:38 pm
by saeb
No idea on the 3rd one. It is all the description so it's a lucky dip guess at times.

Re: Unlink dash backlights from screen brightness

Posted: Tue Nov 15, 2022 9:58 pm
by GenieMan
All good, I appreciate your suggestions and your time. Was worth a shot :)