hey so out of no where my head lights stopped working, i checked all the fuses everything was ok, so i thought it might have been the hid set ups, i took them offend plugged in a regular bulb, still nothing. i swapped the hid systems again nothing, then i took it to my usual shop and they ran a few minor tests on it and found i have power in the wires going to the headlights but no negative lead out both wires were giving hime a + signal..
he mentioned it might be my bcm? i have no idea what to check for next, anyone have a clue or ran into this before?

id hate to buy wrong parts again, i have this starting issue where she keeps starting for like 8 seconds every time before it actually starts and mechanics made me replace iac, an other sensor i forgot which one and a mass air flow sensor which i found in a junk yard thank god and eventually the throttle body and it still doing the same thing

thanks guys

 

depending which module you have, there may be a headlight module, which may or may not be part of the bcm. it could be a relay related problem, bcm, or even headlight or multifunction switch. you need to know where the ground comes from for the lights, and go from there.