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Blown Trailer Light Relay on a 1993 Ford Ranger  


The plug in connectors black relay burnt out. Vehicle W - Gnd, G - Rt trn, Y - L trn, Brn - running lights, Red - Brakes. To a standard 4 wire flat plug


Expert Reply:

I am a little confused by what you mean. If the factory relay located in the fuse box on your 1993 Ford Ranger has burnt up when the trailer wiring was connected then you have a short in one of the circuits. In order to fix this you would need to trace each wire back as far as possible while checking for breaks in the wire and repairing as needed.

If you are referring to the converter box that attaches in between the trailer connector and port on the vehicle then the solution is the same which entails tracing wires and checking for breaks. If you did in fact mean that the converter box has shorted out then it can be replaced with the T-One Vehicle Wiring Harness part # 118325 but you need to make sure the issue is corrected prior to installing the new harness.

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