7-Pin Plug/Trailer Lighting Problem
I was trying to trouble shoot a problem where my running/clearance lights weren't working when the license plate light bulb was plugged in. All my other lights were working fine and dandy. Because...
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Yes, I did verify that the proper light came on. I had all the lights working prior to my chewing up the cable. I had all but the clearance lights working when rewired everything through the connector box and had it hooked up to my own tow vehicle -- except the original problem on the clearance lights. I had all the lights working, even the clearance lights w/license plate light using the 12V power supply.
From the trailer side, the lights were working on the following wire colors. I used the same colors at the connector box to the 7 pin plug. I've also listed the pin # where the wire appears. I've verified that the pin # goes to the correct wire color at the connector box and that I have continuity through the new cable length.
Brown is right turn signal to pin # 2
Blue is electric brake to pin # 3
Red is left turn signal to pin # 5
green is running lights to pin # 6
yellow is aux. power to pin # 7
black is 12V to pin # 1
white is ground to pin # 4
If there is a circuit breaker for the 7 pin connections in the distribution center, it isn't labeled as such. I've even pulled the fuse from the 12V deep cycle house batteries to see if I blew it.
Carolyn
From the trailer side, the lights were working on the following wire colors. I used the same colors at the connector box to the 7 pin plug. I've also listed the pin # where the wire appears. I've verified that the pin # goes to the correct wire color at the connector box and that I have continuity through the new cable length.
Brown is right turn signal to pin # 2
Blue is electric brake to pin # 3
Red is left turn signal to pin # 5
green is running lights to pin # 6
yellow is aux. power to pin # 7
black is 12V to pin # 1
white is ground to pin # 4
If there is a circuit breaker for the 7 pin connections in the distribution center, it isn't labeled as such. I've even pulled the fuse from the 12V deep cycle house batteries to see if I blew it.
Carolyn
