Help. Does anyone know where the taillight-trailer converter box is on 98 Explorer. All lights on truck work fine and all lights on trailer work fine but I have no power to right side brake and turn signal light on trailer out of prewired plug on truck. Since blinkers are separate of brake lights on truck, I thought there must be a converter box like import trucks. Any advice would be great
thanks

 

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What Kinda trailer you have? Power breaks?

 

No just a 4 flat small trailer. Trailer is fine. Checked it on another truck. No power from trailer wiring under bumper

 

Did ya trace the wiring up to the harness (left rear?) there should be a six pin female plug that it plugs into. Also im sure you already did this but make sure your getting a real good ground on the trailer, flashers draw more amp's and sometimes lights will work until you increase the load........If not try probing the wires above the female plug mentioned for juice.....might be a bad plug??????.................

 

Thanks for reply, Traced wires to pin connection. No power to right side brake or turn signal. The hazard flashers work perfectly.

 

Like STU4NOW said check for power at 6 pin connector on left side (driver's side) for power on BOTH SIDES of connector. Sounds like you have a broken wire in the plug or main lead for the plug you might have to remove tire jack and check under it might have pinched wire. Back up 1 sec did the plug ever work to start with?

 

Checked it, No power from vehicle side of pin connector to the one pin for pass side brake and turn signal

 

OK Now trace the wire back to where it splices into the main loom
check for power there. If the pass side brake and turn signal works on vehicle there must be a brake somewhere on the trailer tap off of the harness

 

That is my question? where is the trailer tap on the wire harness located?

 

the trailer tap should be in the area of that 6 wire connector you might have to take the left (driver side) taillight out and or the vehicle jack to locate it. Trace the wires back from that plug and you should find the tap.It might be fun and games but it's there somewhere you might have to use a mirror to find it .When you do try to pull the wires to where you can prob them with a testlight.Don't pull the wires to hard that you pull them apart just enough to prob them.I always hated to trace wiring problems,but somebody had to do it and I always,well almost always ended up doing them.Good Luck keep me informed

 

I'll try in the morning thank you

 

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