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.
No problems.
great product. appreciate the discount compared to direct purchase.
great packaging and fast shipment.
easy to order.
just received my package. Excellent communication throughout the transaction. Item is as described. Will definitely do business again.
Works very good
Item is nice to have on hand for a single person to check trailers as they come in, and have them ready to go back out. Fairly easy to use. a magnet on the back would be ideal to hold to trailer tongue while performing tests.
Has worked well in our production setti ng.
Product received as ordered and very timely. Great service, would highly recommend.
Product was as described and worked as it was designed..
Improved design from the original design product, easy to use, excellent product
Having had the product for a year now it has proven to be very useful. We can do diagnostics with out having the trucks hooked up! Great product!
I ordered this one an the truck one this one is missing the 7 way plug So just make sure you get your parts
Easy to use. All the adapters included.
What a nice tool....just what I was hoping for. I tried it out it worked great. It is built well, with its own nice case and is simple to use.........
Great unit. Having. 12v battery included would make it a complete package, but it's not difficult to source one either.
E trailer is great got my order very quickly and the tow doc makes my life doing inspections a lot easier.
Excellent investment, has save money and time. Recommend to any shop of trailer owners. Hassle free, and portable.
The service was superb I did an exchange and the folks there made it so easy and I received the correct one (i miss ordered ) very promptly I will continue to do business with etrailer
Thank You
Kevin D
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