I'm lost. My 1985 f350 has this type of plug on the back and this type of internal controller inside with a brake line from the master cylinder running right into it [new to me]
So when I first went to test it tonight only the running lights and left and right brake light / turn signals worked right. The little led on the controller never would come on. There are three wires going to the controller in the back electric taped into just two, red and brown. I spliced into the red which was dead even with the key on or running and gave it power when the key is on and that got me the trailer brake portion of the diagram to light up when the brakes are pressed as well as the light on the controller to turn on when the brakes are pressed.
I still have no reverse lights which I really don't care about but no matter what I do the aux 12v / charging portion never turns on.
Do I even need that 12v aux one to haul a car hauler trailer? Will the brakes still work because the electric brake portion works?
If anyone is familiar with this controller perhaps the brown wire is also for power? It doesnt seem to respond to anything with a test light. I could just cheat and run a positive wire back to the hitch from the fusebox but if I dont need it for car trailers I'm not gonna bother as long as I have brakes and brake lights and turn signals.
Also the po provided me with all these disconnected connectors under the hood. Good times. Any help and advice appreciated, my 7.3 the controller always just worked.
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So when I first went to test it tonight only the running lights and left and right brake light / turn signals worked right. The little led on the controller never would come on. There are three wires going to the controller in the back electric taped into just two, red and brown. I spliced into the red which was dead even with the key on or running and gave it power when the key is on and that got me the trailer brake portion of the diagram to light up when the brakes are pressed as well as the light on the controller to turn on when the brakes are pressed.
I still have no reverse lights which I really don't care about but no matter what I do the aux 12v / charging portion never turns on.
Do I even need that 12v aux one to haul a car hauler trailer? Will the brakes still work because the electric brake portion works?
If anyone is familiar with this controller perhaps the brown wire is also for power? It doesnt seem to respond to anything with a test light. I could just cheat and run a positive wire back to the hitch from the fusebox but if I dont need it for car trailers I'm not gonna bother as long as I have brakes and brake lights and turn signals.
Also the po provided me with all these disconnected connectors under the hood. Good times. Any help and advice appreciated, my 7.3 the controller always just worked.
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