Reverse lights
 

I have headlights and taillights that are controlled manually by a switch on my dash. They run off my independent 12v system. I want to add reverse lights now but dont want to manually turn them on. I want them to turn on when i switch to reverse.

Can I use one of the wires in the pic to trigger a relay?
I circled the two options.

Thanks

Re: Reverse lights
 

If you want the reverse light to receive 24v, and turn on with brake lights. But , no, don't hook to those.

Re: Reverse lights
 

Ok I'm restarted. I just realized i am asking about reverse lights and showing pics of brake lights. Doh!

Re: Reverse lights
 

Do You have a reverse buzzer, it is really simple?


http://www.buggiesgonewild.com/attac...connection.jpg

https://www.mouser.com/ProductDetail...HO3CeSfQ%3D%3D

Re: Reverse lights
 

Yes I have a reverse buzzer. I am leary of tapping into it thought. RXV's are finicky when you tamper with their electrical system.

Re: Reverse lights
 

Correct, it'll kill the controller. The reverse buzzer is not to be connected to.

Re: Reverse lights
 

Do you have any suggestions for connecting reverse lights to an RXV?

Re: Reverse lights
 

One option would be to reconfigure the Fan driver output at controller pin 3 as a secondary reverse output switch, with powerup test disabled and both outputs set to 25% (12V) to directly power a reverse LED light. Max limit on that circuit is 3 Amps. It is the negative side of a circuit with the + 48V pack voltage as positive. The real reverse buzzer input/output is used as part of the run/tow circuit, so it should never be messed with, but a secondary output is usable.

Bob

Re: Reverse lights
 

That is definitively not a feasible solution for DIY, I guess even though the relay coil is just 20ma, most accidental mishaps messing with the mixed voltage connectors end in catastrophic failure.

Re: Reverse lights
 

It has nothing to do with current. It is a delicate balance of voltage values between the two interrelated functions, and any disruption to that tends to end with a catastrophic failure of the controller. That part of the circuitry of the controller triggers controller memory load at powerup and save at powerdown, to and from high memory/low memory. You disrupt that, and it bricks the controller.

Just ask anyone that has cut a reverse buzzer wire on an RXV to silence it, how did that work out for them...

A new controller later, they learned to not do that again.