Add Paddle Shifters to 2016 Honda Civic EX-T Sedan

lucashend

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I have a theory that I want to see if anyone can confirm or deny, or if anyone has already done it.

My 2016 EX-T Sedan does not have paddle shifters, and I am looking to add them. I have a part list (below) of everything I need I think, except a modified TCM. My theory is: Is it possible to use a TCM from a Civic model that does have the paddles, for example a 2016 Hatchback Sport, and simply swap it into my Sedan? I believe both the sedan and the hatch have the 1.5L Turbo, and the same CVT, so it does not seem to be risking damaging anything I wouldn't think. How does the TCM interface with the ECU? How about the Dash in terms of showing what simulated gear you're in?

Also for reference, I have done some digging around the web and on CivicX.com and found 2 related threads, but neither have what I am looking for, unfortunately.

Other threads:
https://www.civicx.com/threads/putting-paddle-shifters-on-2018-civic-from-2019-model.29031/
https://www.civicx.com/threads/convert-non-paddle-version-to-paddle-shift.6823/

Part List (I found all of these except the TCM on hondapartswholesaledirect.com):
Cover, Body *NH900L* (Deep Black)
Part Number: 78518-TEX-A21ZA
~$40-45

Switch Assembly, Paddle R
Part Number: 78560-TEA-A81ZA
~$25-30

Switch Assembly, Paddle L
Part Number: 78565-TEA-A81ZA
~$25-30

Sub-Wire, Cable Reel
Part Number: 77901-TEA-R10
~$12

Screw-Washer (4X12)
Part Number: 93893-04012-07
~$1

Alternate/Modified TCM (As an example)
https://www.ebay.com/itm/16-18-Hond...ntrol-Unit-Genuine-TCU-Used-OEM-/183258761128
*Sidenote - This eBay post makes me thing that it would be interchangeable as it says it is compatible with all Civic models 2016-2019, including ones with and without paddles.

*Edit
For what its worth, I messaged the seller on eBay about the part linked above. I asked how it could be compatible with all models. Here is his response:
"Hello. Yes the TCMs would be different since they came with different engine sizes so their ratios are different. TCMs we have mostly came off of a 16-18 civic sedan with a 2.0 engine"





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cm5157

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Interested as well. If I wasn't a broke college student and could afford to lose a couple hundred bucks I'd jump the gun and but the parts just to test it out
 
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lucashend

lucashend

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Interested as well. If I wasn't a broke college student and could afford to lose a couple hundred bucks I'd jump the gun and but the parts just to test it out
That's where I am at too. Figure I would ask around here before blowing $200 on parts and breaking my car or something haha
 

gtman

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It may seem like minimal parts but I can't imagine it's all that simple of a DIY upgrade. By the way, the CVT's are different in the 1.5 and 2.0 models, so I'd have to think the TCM's may not be interchangeable.
 
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lucashend

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It may seem like minimal parts but I can't imagine it's all that simple of a DIY upgrade. By the way, the CVT's are different in the 1.5 and 2.0 models, so I'd have to think the TCM's may not be interchangeable.
I agree, the TCM will be the tricky part. Doesn't the Hatch Sport have a 1.5L in it still, same as the 2016 EX-T?
 

87elco

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I'd just get a ktuner or hondata paddle shifters will make your car slower really
 

cm5157

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ScaredNoob

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Hi guys,

I decided to burn some cash to give this a try on my Civic 2016 EX.. I bought a steering wheel from a Civic 2019 Sedan Sport with paddle shifter, and also the Control Unit Transmission from the same vehicle.

I'm new to this and this is my first car, but I'm anxious to learn. If this can be done easily I can try it myself (after watching some videos and getting help from you) and share the results here.

Here are the parts:

s-l1600.jpg


s-l1600 (1).jpg


s-l1600 (2).jpg


I guess my questions are: Would it work? Can it damage my car in anyway?

Thanks.
 

cm5157

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I'm not sure it will work. The issue is that our non-paddled cars have L on the shifter whereas the sports do not. I'm not sure how the TCU handles that. The previous guy had ordered a specially reprogrammed TCU that had support for both L AND paddles, but he seems to have disappeared.

That said, the worst I imagine happening is that the ECU doesn't like your new TCU and everything lights up, but I don't personally think that would cause any permanent damage as you can always go back to the stock TCU. Ofc, I'm no expert on all the transmission electronics (I've only ever worked on full manual race car transmissions with minimal electronics) so I can't say for sure.
 

Elio

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Hi guys,

I decided to burn some cash to give this a try on my Civic 2016 EX.. I bought a steering wheel from a Civic 2019 Sedan Sport with paddle shifter, and also the Control Unit Transmission from the same vehicle.

I'm new to this and this is my first car, but I'm anxious to learn. If this can be done easily I can try it myself (after watching some videos and getting help from you) and share the results here.

Here are the parts:

s-l1600.jpg


s-l1600 (1).jpg


s-l1600 (2).jpg


I guess my questions are: Would it work? Can it damage my car in anyway?

Thanks.
 

Elio

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I wish I could do this to mine I could not afford the sport model
 

RoB y4h3ll

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*Cough* Find a used Si *Cough*
*Cough* Or maybe a manual EX-T *Cough*
 

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