The 3 wire has burned up 3 controllers because of the high voltage input and out to the controller. I spoke to Tech Support at Curtis before hooking it up. Derrick next week he has a new 3 wire and a new 2 wire, we plan to put the 3 wire back on just to see if the fault returns, I think I will probably put a new 2 wire back on and leave it, it is cheaper and actually it is what the controller specifies. The 2 wire I used is old and it may not be a proper match, I am not sure if they are all the same as far as the voltage reduction. He is learning with me so he only charges for the parts. Derrick, the golf cart mechanic owns a couple Ruff Tuffs and is friends with the folks at RT Gear in Columbia, SC. To clarify the 2 wire is connected to Pin 13 and Pin 15. Pin 13 sends input voltage which is 14-16 volts to the sensor. I added a wire from Pin 13 to the sensor, I had to add a pin to the molex connector. I left the wire from Pin 15 which caries the return voltage back to the controller. I disconnected the wire from the emergency brake to the sensor which carried 48 volts l left it in the box as well. I had two do some retiring, I disconnected the wire to pin 14 it is the ground and is not needed with a 2 wire I just unhooked it and left the wire in the box in case I go back to the 3 wire.
The fault code 1-2 went away when I installed the 2 wire sensor. As far as the speed problem, as I stated before I am using am old 2 wire I got from a junked 2 wd 6 seater RnT it has a different controller. Try friending me Heyward Mattox on FB there is a picture of me and my Grandchildren on the page then I can add you. Check out the Facebook Page Ruff and Tuff Electric Vehicles I am an admin trying to figure out how to add you. I have a wiring diagram on the switches, it is on the Facebook Page File section. The four wheel drive system will eventually give you a problem, i don't think it was ever perfected. For R&T Parts check out should have everything The guy that owns RT Gear Owned Ruff and Tuff originally.
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