To troubleshoot an E-Z-GO golf cart for wiring problems, visually inspect the wires to check if they're loose, frayed or corroded. Tighten any loose connections, and replace frayed or corroded wires. Take safety precautions, such as wearing protective gloves and safety goggles, before performing any troubleshooting.
Use a wire brush on the cart's battery terminals to prevent acid accumulation. A properly maintained battery lasts up to six years, as of April 2015. Keep the battery fluid at the recommended levels. If the cart has low pulling torque when driving on inclined roads, it is typically a battery issue, such as low power or loose connections.
Inspect the ignition wire, because it has the potential to dislodge during drives on heavy terrain. The wire runs from the golf cart key assembly to the starter. On most E-Z-GO golf carts, this wire plugs into a solenoid. Place it back in the solenoid if it has come loose.
Electrical problems on an E-Z-GO golf cart are sometimes caused by the transmission selector not being placed in the correct position. Verify that the selector is fully positioned in the park position when the cart isn't in use.
Clean the cart regularly. Dirt and debris negatively affect the battery, motor and transmission.