Guides with this tag.
If the cart drives but the lights, horn, signals and backup alarm died after a battery swap, the 12V accessory feed got left off. Here's how to find the lead, meter the right post, check the fuse or reducer, and avoid burning out your bulbs.
The resistor across the big solenoid posts keeps the controller's capacitors charged so the contacts don't arc. The diode across the small posts eats the coil's off-spike, and its band must go to coil positive. Here's how to wire, size and test both, and whether a solenoid that has them fits a cart that didn't.
A single snap when you land the last cable is the controller charging. Continuous sparks mean a real short, usually new accessory wiring. Here is how to find it circuit by circuit on a 48V lead-acid or lithium cart.
