Tekonsha P3 questions

Submitted: Sunday, Jun 05, 2016 at 21:45
ThreadID: 132656 Views:2662 Replies:5 FollowUps:0
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To any electric brakes guru's out there; I dont think my brakes are working to their full potential..the tow vehicle is a 2013 Navara deisel Crew Cab and the van is a Jayco Outback 17', single axle with 12" brakes, all up it weighs a little under 2 tonnes .......I suspect unsatisfactory wiring resulting in excessive voltage drop.
So...my tow vehicle battery is sitting on12.8 what voltage would I expect to see on a DMM at, 1, the trailer plug and 2, each caravan wheel?.....what amps would I expect to see at full brake over-ride lever operation?
Also, I wonder if anyone can help clear up some confusion I have:
in the Tekonsha user manual it is suggested that the initial power setting should be 6 and this figure can be adjusted up if the braking is insufficient, down if lock-up occurs. What I dont really get is this, the controller senses deceleration and applies power to the trailer brakes proportionally, this being the case why would you set your brakes 'power' to a figure less than you have available...ie 12.5 volts or so??...if it is set to 6 would that not be the maximum voltage that can be applied?, like in an emergency stop situation and when you would want the max....or am I missing something here?

Thanks
Paul
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