Headlight Control Function on KT LCD3

[wheeliepete]

Trying to figure out how this works, but can't find any info. My 36/48v KT controller has light/horn output, but is configured to use an external switch. I am trying to use the backlight/headlight function on the LCD. I have battery voltage between the green and blue wires, but it is constant as soon as the battery is turned on and unaffected by the LCD.

 

[Nealh]

AFAICS kt lcd only has back light mode, any light needs optionional light /horn switch. I use horn switch for the front and rear light and the built in peep peep with the front light.