The resources available to diagnose the COMPLETE and correct operation of a 7-way hitch by the average trailer owner (and repair shops) were very limited prior to the introduction of this product. This tool takes into account the many different "theory of work" that various OEMs use to control the exits of their 7-lane trailers. These theories can also differ depending on the year of manufacture of the same OEM. The two most valuable features are: 1) the ability to check the "gain" if (IF) that setting is available, and 2) "synchronization" or the exact moment the trailer brakes are applied relative to when to which the trailer brakes will be delivered Power supply unit power supply (even if present) . Depending on your powertrain package (vehicle) AND/OR aftermarket controller, these two critical user adjustable parameters MAY OR NOT be available. Additionally, most aftermarket controllers use either a "time delay" or "proportional" design to apply a brake signal to the trailer, which in some cases can be adjusted by the driver. There are many values that need to be measured and checked on the trailer's electrical connection. THIS TOOL DOES EVERYTHING including basic diagnostics of lights and other signals including a useful "helper" signal when used. NOW a vehicle owner can test a simple yes/no for various fixed or variable signals coming from their 7-pin socket on their vehicle and SIMULATE AND ADJUST all variable attributes. ALWAYS follow the EASY setup instructions, including all warnings. NOW YOU CAN BE EXACTLY SURE OF WHAT IS HAPPENING. BRAVO on another independent American quality product! ! ! (my video will be released soon)
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