Universal Car Ignition Switch Engine Start Push Button For Keyless Entry &Push Starter Kit
Line position function:
Red line (button +12V power supply line)
Black line (button LED light negative control)
Yellow line (key switch positive power trigger output control)
3-line function description:
+ Positive trigger output control, after pressing the start button, the yellow line outputs +12V; the black line connects the button light to control the negative output line, and the button light illuminates.
The product includes a start button housing, a 4-point iron plate, silicone, and a circuit board and cable.