Auto A/C in Si...possible?

Discussion in 'Navigation, Security Systems, & Electrical' started by Mephist0, Sep 20, 2013.

  1. Mephist0

    Mephist0 Well-Known Member

    Messages:
    103
    Location:
    Frisco, TX
    Vehicle Model:
    2013 Civic Si
    Body Style:
    Coupe
    After hearing that our hockey-loving neighbors to the North have automatic A/C in their Si's, well why the hell don't we? The EX models have auto A/C, wtf? So I looked up the parts via @CollegeHillsHonda and I found the part for the EX's auto A/C unit...

    http://www.collegehillshondaparts.c...t-heater-fuel/auto-air-conditioner-control-13

    Here's the one we get with the Si...

    http://www.collegehillshondaparts.c...ctrical-exhaust-heater-fuel/heater-control-13

    The knobs are the same part numbers and while the auto A/C unit is a little deeper, I can't see a reason with this wouldn't work. Thoughts?

    NOTE: I believe this is only for 2013+ Civics as the 2012 models had different AC controls.
     
    Last edited: Sep 20, 2013
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  2. FooBird
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    FooBird If the Foo...well, you know. Just wear it.

    Messages:
    5,551
    Location:
    Kirkland, WA
    Vehicle Model:
    Si
    Body Style:
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    Would need to make sure you had the sensor and the wiring to it to read the temperature. From there?
     
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  3. Mephist0

    Mephist0 Well-Known Member

    Messages:
    103
    Location:
    Frisco, TX
    Vehicle Model:
    2013 Civic Si
    Body Style:
    Coupe
    I would think it would be self-contained like any other thermostat but I'll scour the parts listings to see if I can find anything.
     
  4. Mephist0

    Mephist0 Well-Known Member

    Messages:
    103
    Location:
    Frisco, TX
    Vehicle Model:
    2013 Civic Si
    Body Style:
    Coupe
    Looked over everything remotely related to the Heater/AC system and outside of the actual control unit, everything is the same. Looks like I may have a project in my near future and hopefully before winter comes. They're not too bad in North Texas but we did get some snow last year including a white Xmas which was rather shocking.
     
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  5. Mephist0

    Mephist0 Well-Known Member

    Messages:
    103
    Location:
    Frisco, TX
    Vehicle Model:
    2013 Civic Si
    Body Style:
    Coupe
    Any members who happen to be taking their dash apart, it would be awesome if we could get pics of the control units from the back.
     
  6. Phaheem

    Phaheem Well-Known Member

    Messages:
    282
    Location:
    Southern CA
    Vehicle Model:
    '13 Civic Si
    Body Style:
    Sedan
    I'd love to also have the digital climate control. It should've been standard in the Si. Presumably, it would be a plug & play swap - I can't imagine Honda making it more difficult than it needs to be when installing them on the assembly line at the factory.

    Keep us posted on your progress :popcorn:
     
  7. NoobyCIVIC

    NoobyCIVIC Well-Known Member

    Messages:
    72
    Location:
    SOCAL-626
    Vehicle Model:
    Honda Civic Si
    Body Style:
    Sedan
    I know the 8thgen diy had to get the hybrid humidity control and a few other parts to it to get it to work. If they did that on the 8thgen it might be the same as for the 9th gens.
     
  8. nat3d
    • Supporting Member

    nat3d Wait, I don't drive a civic anymore....

    Messages:
    3,300
    Location:
    Adams MA
    Vehicle Model:
    Ford Focus ST
    Body Style:
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    id love to do this on my lx. is it dual zone as well?
     
  9. andre12dbsi

    andre12dbsi Well-Known Member

    Messages:
    2,096
    Location:
    Gatineau, QC Canada
    Vehicle Model:
    '15 Acura TLX SH-AWD Tech
    Body Style:
    Sedan
    No. Automatic but not dual zone.
     
  10. webby
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  11. Mephist0

    Mephist0 Well-Known Member

    Messages:
    103
    Location:
    Frisco, TX
    Vehicle Model:
    2013 Civic Si
    Body Style:
    Coupe
    I noticed the humidity sensor in the EX but based on the diagram, doesn't look as though it penetrates the firewall. The only reason I think this swap is reasonably possible is because the Canadian Si's have automatic A/C and the controls are under $300 so I may be willing to try this. Does @CollegeHillsHonda have any input to the 9th Gen (specifically the '13 model) in terms of what is involved? Also, what's your return policy? :D
     
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  12. CollegeHillsHonda
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    CollegeHillsHonda Vendor

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    Location:
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    I have no idea if that would work or not. The only way to find out is to actually install it. From past experience though almost everything electrical is very rarely plug and play from vehicle to vehicle. Differences in trim level wiring harnesses and computers are usually the culprits. I'm not saying that it could not be adapted however I doubt it will just plug in and work straight out of the box. I've known to be wrong once or twice though. Electrical items are non returnable.
     
  13. Mephist0

    Mephist0 Well-Known Member

    Messages:
    103
    Location:
    Frisco, TX
    Vehicle Model:
    2013 Civic Si
    Body Style:
    Coupe
    D'oh! Hmmm, knowing what the back of each unit looks like would go pretty far to know what I'm dealing with but $300 is a lot to gamble on a hunch and I'm not big on car hacking. :P
     
  14. Mephist0

    Mephist0 Well-Known Member

    Messages:
    103
    Location:
    Frisco, TX
    Vehicle Model:
    2013 Civic Si
    Body Style:
    Coupe
    Schematics form the shop manuals for both would be great to have also as this would indicate what sensors talk to the unit.
     
  15. ZeroTX

    ZeroTX Well-Known Member

    Messages:
    67
    Location:
    Houston, Texas
    Vehicle Model:
    Civic Si
    Body Style:
    Sedan
    I'd love to find out if this works :)
     
  16. Mephist0

    Mephist0 Well-Known Member

    Messages:
    103
    Location:
    Frisco, TX
    Vehicle Model:
    2013 Civic Si
    Body Style:
    Coupe
    Think I'm going to call around to a few salvage yards so the monetary risk is lower. There should be enough wrecked 2013 Civic Ex's by now. :tongue:

    I saw a thread for CR-V owners and they did this successfully in a 2007 where it was modular like ours and they bought the controls at a salvage yard for like $40. I can see in some vehicles that offer multi-zone A/C and/or where the system is integrated more heavily into the dash electronics, this would be a pipe dream or just fiscally stupid to even attempt. We have a 2011 Toyota Sienna Limited with multi-zone A/C and the controls are also so embedded into the dash that if people with lower models that had manual controls, it would be near impossible to accomplish a retrofit. The other thing that makes me feel this is easy is that Canadian and Australian Si's have the same auto climate controls as our US EX model, so it likely isn't that involved.

    If I can source the controls at a salvage yard on the cheap, I will detail the retrofit.
     
    Last edited: Sep 26, 2013
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  17. Phaheem

    Phaheem Well-Known Member

    Messages:
    282
    Location:
    Southern CA
    Vehicle Model:
    '13 Civic Si
    Body Style:
    Sedan
    Looking fwd to your results!
     
  18. PMMcivicFB2

    PMMcivicFB2 Well-Known Member

    Messages:
    772
    Location:
    Canada B-Town
    Vehicle Model:
    Touring
    Body Style:
    Sedan
    [​IMG]Haha. Yeah love my auto climate. It's probably not cheap or easy. Cause you need all the sensors as well as the ac unit.
     
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  19. team3d

    team3d Well-Known Member

    Messages:
    711
    Location:
    Los Angeles
    dual zone auto a/c only available in ILX
     
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  20. njhustler

    njhustler Well-Known Member

    Messages:
    385
    Location:
    New Jersey
    Vehicle Model:
    Civic Si
    Body Style:
    Sedan
    I wonder if that will work.
     

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