New 2021 SE Roadrunner Li-ion

[Marc2010]

Just took delivery of my New 2021 SE Roadrunner Li-ion. Great product. My frist round of golf took the batteries down to 70%. I believe that will improve after a few cycles.

Question: I have removed the stock horn and am replacing it with a 1965 Plymouth Roadrunner horn. There is only one connection as this horn depends upon frame ground. The stock horn had dual connection.

When I connected the horn I received a Fault notice. I have heard that connection accessories often causes these Faults and there is a diode that can be connected to work around this issue. Is anyone knowledgeable on this issue? What diode? Proper connection?

Thans for feedback.

[Volt_Ampere]

Nothing should ever be grounded to the frame on a golf cart. You need to isolate the horn from the frame - then it will work.

[Muddog]

What he said.
Run a wire from horn frame to battery negative.

[Volt_Ampere]

But you first must isolate the horn metal from the cart metal.

[Marc2010]

Thank you everyone. I did isolate the horn but the CC Onward Li-Ion horn circuit apparently doesn't carry enough amperage to blow the horn. I replace the original horn and it works perfectly. I put the new horn )isolated) in parallel with the original. The original blew but not the new one.

Noe thinking about replacing the original with a relay. I need to find a location I can pull voltage and current through an in-line 15A fuse to power the horn through the momentary SPST relay.

Any Ideas? I have not located any wiring diagrams. I have the 48V FLA wiring Diagram. I am not certain they re the same.