RC F (2015-present) Discussion topics related to the RC F model

Shift Paddle Wiring with aftermarket steering wheel

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Old 12-11-23 | 12:58 PM
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Default Shift Paddle Wiring with aftermarket steering wheel

So I'm working on swapping out the steering wheel with an aftermarket one, a sparco/momo style one, not one of those carbon fiber ones. RCF being automatic obviously I need to keep the paddle shifters, there's no premade kit for this so I'm trying to use the battleaero bracket for GR86 / BRZ, I lose the steering wheel controls but get to keep the cruise control.

Didn't want to take apart the stock steering wheel, well I did already in my first failed attempt then decided it was too much work to keep transfering everything, so I bought IS350 paddles and a generic cruise control stalk.

From the outside, the RC/IS shifters are the same construction as the brz, and Toyota uses, the same cruise control stalk, so I was able to fit everything, got something like this:


Crusie control works, horn works, no airbag light, shifters do not work.

I paid $25 for the service manual and understood that on the clock spring, terminals 6, 7, 12 are for the shifters, 6 is up shift, 12 is down shift, and 7 is the ground/negative, green, white, and pink wires respectively if I remembered right, I'd say it's pretty simple.
Tricky part is that the shifter ground wire goes through the right side steering control first, then to the clockspring, I apologize for not having a picture but I've lost access to the manual already. Since I'm ditching that control, I ran a wire straight from the negative ternimals of the paddle switches to ternimal 7, I ran wires straight from the SUP & SDN to the clockspring terminals 6 & 12 as well but that's the same as stock wiring.

The negative wire is the only part of the wiring that I had to improvise, and I think I didn't do it right, but then it's a negative wire I don't understand how could it not work.

I ended up putting the stock steering wheel back on, everything works, so I didn't break anything this time.

So my question is, this issue I'm having where the paddle shifters work when going through the steering control, but do not work when connected staright to the ternimal, is that a function of the switches themselves, or is it a fucntion inside the clockspring?
If it's with the switches I can get the BRZ/GR 86 switches and make the setup work, hopefully. Subaru manuals are free and I understood that their switches do not go through steering wheel controls.
If it's with the clockspring I'd probably have to think of something else.

I know it's doable from this video:
I believe Taniguchi is using a Works Bell universal paddle kit in his car which makes me believe my issue is a function with the switch, which means GR86/BRZ switches would work.

A set of BRZ switches is about the same price as a generic paddle switch kit, but I get to keep cruise control if I use stock pedals, that's why I wanted to ask first if anyone knows this.

I'd also like to ask if anyone can confirm that the is350 and RCF switchs both have to go through the steerign wheel control in the stock wiring? I could pay the $25 again to check but that'd be the only information I need this time.

In case anyone wants to know why, knee space and ergonomics. I want to bring the steerign wheel closer to myself with my legs relatively stretched, and not hit the steering colum cover with my knee.
Old 12-12-23 | 04:25 PM
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Hope this helps!
Old 12-13-23 | 08:43 AM
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Is this for an is350? So on this car there's 6 connectors responsible for the shifters...

Almost sure for the RCF there's only 3 connectors in this connection albeit I wasn't able to find out what 3 1 4 were on the RCF.
Old 12-13-23 | 11:51 AM
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Originally Posted by Lancercool1992
Is this for an is350? So on this car there's 6 connectors responsible for the shifters...

Almost sure for the RCF there's only 3 connectors in this connection albeit I wasn't able to find out what 3 1 4 were on the RCF.
That is for an RC F, I don't have anything for an IS350. Maybe it's just showing the different variations in there depending on options installed or model year.

Last edited by JT2MA71; 12-13-23 at 12:07 PM.
Old 12-13-23 | 12:03 PM
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