So here is my problem; I want to power some accessories of the interior lights in my truck. The problem is that the interior lights donít just turn on and off...they turn on normally but when they turn off they fade out (dim). I suspect (but am not sure) that the lights are actually powered by a PWM signal (rather than a simple on\off) and when going out the BCM simply modifies the duty cycle of the PWM signal to affect the fade to black. This means that when I connect my accessories through a relay the relay simply starts buzzing when the lights are going out.
So here is the question...How do I create a simple discrete on\off from the PWM signal?