2000 Pete Day/Night Signal.

Got a question about the day/night signal on my 2000 pete. Came from the factory with the switch however darn thing has never worked when hooked to a trailer. Will kill the cab lights when hooked won't kill the trailer markers though. Got the test light out and it's killing the black wire but brown stays lit. According to the good old wiring diagrams I've seen Black is the ICC markers brown is the running lights. Even though it cuts power to the Black all trailer lights stay on including the 3 across the back of the trailer up top or down below. Sooooo guess my question is what is the best way to rewire the switch to kill both the black and brown wire just splice in and call it good? Also and this puzzles me being a day night signal it WILL POWER all the lights on the trailer just won't cut power to them. The 06 we have cuts both and I'd prefer it be like that getting sick of kicking my 4 ways on to say thank you and I don't perticularly like blinding people with the LED's some drivers might not have a problem with LED's at night but they hurt my eyes when somebody does it to me so I'm trying to be courtious.

 

Thank you. I called pete about it of course no skematic that makes sense with the wilson although doesn't explain the east. I have seen trucks that will only kill the ICC lights before just prefer all my running lights go out. Ripped the dash out and have a complete cluster to fix tomorrow.

Looking at the signal switch I have 3 connectors and 4 wires coming off. 2 white wires on the top key off switch in the middle has a little juice not much for the test light. Have a black wire running from the right side of the switch if you're looking at the dash side that leads to the clearnace lamp switch (also hot but barely) and another black wire on the bottom that runs to god knows where. I'm assuming one is a ground figuring the black wire on the bottom. When I turn the clearance lamps on power is lost to the white wires and the black off the clearance. Which makes sense to me. I'm not good with signals can wire up chicken lights but tomorrow will probably be spent trying to trace where the brown runs out of the trailer plug so I can splice in and transfer that over to the black to cut power to both when I flip the switch down at night. Still trying to figure out why it'll power all the makers when the clearance are off but won't cut all the power when the clearance lamps are on #### goofy peterbilt lol.