Hello, the code 25 is supposed to be for the brake Aux Solenoid. Does anyone know exactly where that is located or looks like? I tried following the cables, etc to no avail. No lights, horn, no reverse noise, no power to motor.
The lights and horn have nothing to do with the controller are you sure the batteries are fully charged? The aux solenoid is probably a black cube relay attached near the main solenoid, that's how it is on EZGO. Not sure if FairPlay would even have that feature.
Also check the key switch if the lights/horn are on a keyed reducer then you may just not have voltage out of the key