I was just curious if anyone knew where I could download a free wiring diagram for a 1990 F250. It's a diesel, but I just need if for the taillights. I have a flatbed on it and I'm putting the lights on it. I installed some backup lights and wired them into what I thought was the backup wire (the harness was just cut, I found it by putting it in reverse and using a test light), but after hooking them up they stay on all the time. I'm thinking I may have wired into the a trailer auxiliary (which is on all the time, right?). On the other side, the transmission blew and I was able to put it in reverse and nurse it back to where it is sitting, so I'm thinking it may be stuck in reverse. I cycled through all the gears and tried to move it (no luck there!) and the lights stayed on. I just pulled the bulbs out so I don't drain the batteries. Any help is appreciated!
TheFastMan
Black/Pink - Back up lights
Brown - Running lamps/license plate lights
Orange/Light blue - Right stop/turn
Light green/orange - Left stop/turn
Black - grounds
White/red - side body marker lights
I got this out of the manual I have, If you want, I can scan it and post that page
Brown - Running lamps/license plate lights
Orange/Light blue - Right stop/turn
Light green/orange - Left stop/turn
Black - grounds
White/red - side body marker lights
I got this out of the manual I have, If you want, I can scan it and post that page
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