50918 Hopkins Tow Doctor Vehicle End Test Unit
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're going to be taking a look at the Hopkins Tow Doctor Vehicle End Test Unit, part number HM50918. Now you can check your vehicle's wiring harness without the need of a second person. The Hopkins Tow Doctor features a 20-foot heavy duty cable so you can check it from your cab. It tests ground, tail lights, left and right blinkers and brakes, back up, electric brakes and auxiliary power. It comes with adapters that will work with your 7-pole, 4-flat and 6-round in a convenient storage case to store it all. Now that we've gone over the features I'll go ahead and show you how it works. First thing we need to do is choose the appropriate adapter that we'll be testing.
I've got a 4-pole and a 7-pole. I'm going to be working with the 7-pole today. I'll grab my 7-pole adapter. Let's go ahead and plug that in. Make sure to push it all the way in then I'll plug the two ends together.
There we go. Now, I'll head up to the cab. As you can see I'm going to have more than enough cable to get there. Now I can run through all the functions without the need of anybody else. You can see I've already got power here with my auxiliary.
Now let's run through the running lights, which will just be the tail lights here. There we go. I know that works. Then the blinkers, left and right. Then both brakes.
It's even showing my electric brakes. Then we'll do the back up. Throw it in reverse. I know that works. Then I can even test my brake controller. We're all set. If I ever we're to lose ground, this would light up. That's going to complete our look at the Hopkins Tow Doctor Vehicle End Test Unit, part number HM50918.
Average Customer Rating: 5.0 out of 5 stars (7 Customer Reviews)
Bought this item and also the trailer circuit tester. Both work great and save tons of time checking lights and brakes for the company fleet.
I have 4 trucks that tow trailers everyday, we have been trouble shooting the wiring for months. This tool has made solving all my electrical problems so easy!
Great tool
Bruce
Works well to let you know if you've wired or are wired correctly. Big time saver. No more hours tracking down what the problem is. This device tells you when a circuit has no connection.
Nice tool for testing trailer wiring.
Worked as expected and has been very us eful.
So far so good. Just received the package today.
Good tool. Fast shipping.
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