97 ezgo txt voltage converter Help

[firefighter7302]

I have a 97 ezgo txt I bought a reliance 36v to 12v converter it says yellow wire to main +, black to main -, green to switched power, red will feed your accessories that you want to run on switched power, blue will run accessories that you want to run constant..... I hooked the main wires up then hooked the green to the ignition switch I checked the switch with voltmeter one pin had 36v the other 4.3v I hooked to the 4.3 which turns to 36 when key is in on position.. but with that setup I can hook the red to a light and it will come on when I turn key to on but won't turn off when I turn it to off position... only way the light will cutoff is to hit the tow/haul toggle switch.... HELPPPPPP!!!!