Quote:
Originally Posted by mothernaturesson
Thanks for the suggestions. The trucks a 2001 and plug was installed by dealer would it still have separate fuses I wonder? I'll definitely give these a try.
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Most likely Not. often they just splice into the lights at the rear of the vehicle, and run a new brake and AUX line. However, I have seen some manufactures (I'm not familiar with Toyota) run the wire harness down, and not us the plug and it is just stuffed up into the chassis somewhere. So there is a chance it is a factory wire harness, with a 7 pin plug just added, and a brake controller added.
You can buy a "
trailer wire tester". This will check the signal up to the hitch on the TV side. This tool is fairly cheap. Does the same thing as a multi-meter, just a dedicated tool for a single use.
On my canoe trailer the wire harness give me grief all the time. I have used the technique Scott97310 mentioned in another post. I used my portable battery jumper, to test the lights. connected a wire from the Ground pin to the black jumper cable, and then used another wire from the red jumper cable to test the various lights. It is a little Jerry Rigged, but it works, and keeps the TV wire harness out of the loop.