cruise control switch relocation

[Sudesh]

7 years ago I did this conversion, was pretty straight forward from memory. Only difficult thing was recollection and moulding the panel.

[hkz286]

in theory yes, but the switch is supplied on the downstream side of the horn relay..... this might have just been for convenience, by the designers, at the cable reel end of things, but it does add in a safety resistance/current limit for the switched supply into the cruise control.

not knowing how they set up the control board, the input voltage levels, impedance etc, i'd be inclined to replicate the original layout.

if you want to tap into the horn upstream supply, i'd fit a resistor of the same value as the resistance of the horn relay coil, just to be sure!

for the sake of 10p, i'd rather add a resistor than have to ask honda for a new cruise control computer!

cheers for that will keep it in mind.

All you need is the high side signal at the 'SET' or 'RESUME' input terminal at the Cruise Control Unit (CC unit) so just grab your multimeter and find a wire that shows 12V.
Considering the usage and the location of your CC switch, probably best using the ACC or IG power but it can be the BAT power as well.

As you have 'HALF' height ANT (aerial, antenna) SW at the centre console, I believe it's JDM.
There is 12V BAT 15A fused wire at the Front Fog light SW, next to your CC SW.
I think it's the YEL/WHT wire but very tight space so you may struggle breaking into that wire with parking brake lever and dashboard centre piece there.

You can also use the IG 15A fused wire at the CC Relay mounted on the vertical silver metal bracket just in front of the shift lever.
There are two relays mounted on there and I think it’s the one on the right side.
Again, just grab your multimeter and turn the IG key into P2 to find the IG power. I think it's the YEL wire.

The CC SW is momentary analogue SW so the I/F circuit on the CC Unit shall have SW chattering filter so just use any high side signal wire nearby.


Kaz

once again, your the master and thanks for the input, its very much appreciated. I shall find a suitable source that is the neatest for this setup.

7 years ago I did this conversion, was pretty straight forward from memory. Only difficult thing was recollection and moulding the panel.

yup its your fault I did it this way I always give you credit if anyone ever asks about it

[Sudesh]

I did this mod for Andrew, he liked NSX-R steering wheel but want to keep cruise, so I did this mod back in 2007

[nobby]

Yup and still working well

[Sudesh]

Thanks Andrew, and as you you know, if Any issues I will repair Free. It was you big man, that challenged me to do this desiine.

[hkz286]

does anyone know,how,to,increase the speed limit on the cruise control when at 116 km/h?

I'm assuming it would mean interrupting the speed signal that is going into the cruise control unit?

[Kaz-kzukNA1]

Based on earlier post and the speed limit level you are talking about, I believe you own JDM spec.

If your NSX is non-DBW, you can modify the speed signal into the CC unit but please pay extra attention on where and how you break into the wire if you have other controllers such as AT, EPS, etc.

There is another way by applying certain modifications and I have been using it for nearly 2 years.
No issues and happy with the result.
It's not my know-how so I can't disclose the method and since other owners paid for it, I can only offer it as a service at my place.


Kaz