I need some help from owners of non-navi models to answer some questions. For the fan control dial, how many discreet fan speeds can you select? I count 24 detents,
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02-12-2019, 01:33 AM | #1 (permalink) |
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Non-Navi AC Controls
I need some help from owners of non-navi models to answer some questions.
I would appreciate anyone who could explain this. I looked in the FSM and the listed modes table does not show these intermediate positions. |
02-14-2019, 12:06 PM | #2 (permalink) |
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Wow... Several days and 245 views later and no one can comment on this? I didn't think this would be a hard request. Anyone who has a non-navi AC system, if you could please comment on the above questions, I would greatly appreciate it. I am working on a project that will use the non navi AC controls to communicate to a navi based AC system over the CAN bus to make swapping out the stereo/navi system easier. To do that, I need a better understanding of what all the options on the non-navi AC dial controls do in a non-navi car. |
02-14-2019, 02:10 PM | #3 (permalink) |
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If it wasn't a hard request, then why are you asking and not figuring it out on your own?
Its not easy to answer as the average person wouldn't really know how may clicks within that dial actually change the speed of the fan. You would need something to measure either the fan speed at each click to determine if each click was indeed an increase, or just a gap between the next actual speed adjuster. Or, you would need to meter voltage/ohms from the AC amp output to see thew step changes.
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02-14-2019, 02:27 PM | #4 (permalink) | |
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Regarding where the air comes out I use AUTO and SCREEN DEMIST only. |
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02-14-2019, 04:28 PM | #5 (permalink) | ||
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All of the controls are pretty self described, but the intermediate selections between the modes I pointed out in the pic are not labeled or defined in the matrix in the FSM. I was hoping someone with that model Z could simply go out to their car and see what their AC does in those modes. |
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02-14-2019, 04:47 PM | #7 (permalink) |
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Hope this answers fully for you. It took me all of 10 min to answer so no problem.
A/C Control - 26 positions 1 - off 2 - auto 3 - 25 fan speeds Temp Control - 30 positions 1 - 60 16 - 75 30 - 90 Airflow - 8 postions 1 - Auto 2 - Face 3 - Face / Feet 4 - Feet 5 - (mix) 6 - Defrost / Feet 7 - (mix) 8 - Defrost BTW, I have 2016 Nismo Tech and bought this system from Non-Nav with intentions replace my Nav system to be able to install Cubby tablet. I gave up though due to need to hack up multiple harnesses. If you or anyone needs the Bose radio & AC controls from 2014, I'll make you a good deal! |
02-14-2019, 05:08 PM | #8 (permalink) | |||
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I appreciate the help! |
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02-14-2019, 07:44 PM | #9 (permalink) |
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since i don't have this system in the car, I can't check modes 5 & 7, but i'm guessing that airflow is directed 25%/75% rather than 50%/50%. Hopefully someone else can help you confirm or correct.
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02-14-2019, 09:09 PM | #11 (permalink) |
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I was just giving you a hard time, not trying to an a-hole or anything.
Plan on using an Arduino with a MPC SPI board to control the CAN bus? I was looking into this a while back, and have the parts, but abandoned the project as my coding skills really suck. I just opted to do the swap and it was a lot easier than I thought. With the dials, I don't think there are 25 distinct speeds, think there maybe 6 with 4 clicks between each as I never really hear or feel a difference in speed. Could be wrong though... Edit: Just looked at the HAC FSM manual, seems there are only 6 speeds for the blower motor: 1st 25% 5th 33% 10th 43% 15th 53% 20th 63% 25th 81%
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02-14-2019, 09:28 PM | #12 (permalink) | |
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My guess is you also have 7 fan speeds. The first click after AUTO is speed 1 and the speed increments every 4 clicks making speed 7 the very last click. That will make mapping fan speeds to the navi based AC amp simple. Now, if I could only understand what those two intermediate positions do! Oh, wow... that's interesting... so the last position doesn't increase to 100%? Hmmm... Last edited by radensb; 02-14-2019 at 09:30 PM. |
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02-14-2019, 09:35 PM | #13 (permalink) |
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They call it “blower duty rate”, so they may consider the 81% an average.
Also looking at the manual, the different “doors” that actuate for front, feet, and defrost only show the 5 modes. There no change in variable between the selected modes. So it feet, face feet, feet. No 70/30 or anything like that.
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02-14-2019, 09:50 PM | #14 (permalink) | |
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I did notice that the foor icon on the dial has a smaller arrow than the foot/defrost icon. Maybe that indicates a change in flows that the navi AC doesnt support? FSM is no help in that regard, unfortunately. |
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02-14-2019, 10:17 PM | #15 (permalink) |
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Ya, something like that would have to be tested with an ohm or voltage meter to see if there are any fluctuation between modes. Crap like this makes me miss working on older cars. Lol.
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