Tekonsha P3 questions

jmtandem wrote:
However, it is not a 'set it and forget it' unit. Mine has to be set for highway travel or around town situations or the wheels lock up in slow in town type of stops.

Something is not right. It should be set it and forget it. I've had my PII for over 10 years, 2 trailers, and 3 different tow vehicles. I only have to readjust it when using it on a new combination. I never even have to adjust it from year to year.

I bought my p3 from etrailer.com. On the site, they offer the pigtail that connects to the back of the p3 out - but also they have most of the major manufacturers tow vehicles that plug directly to the fuse block (assuming your vehicle is wired for towing to begin with).

Mine was plug into the fuse block, plug into the controller and away I went.

JMTandem's note about set and forget is somewhat correct. On the plus side, you can increase the initial breaking the moment your foot touches the brake pedal from moderate to very aggressive. This is extremely useful if you're doing a lot of highway driving; However, the moment you're exiting the freeway, you need to scale back the aggressive behavior of the controller or your brakes will lock up at slow speeds.

What I have found is the default setting (lowest) works the best unless your brakes are close to the Tow Vehicle limit. At that point, you do need to increase the boost.

PM me if you have more questions.

Josh

I need to buy a new brake controller if I can't fix my old Jordan and I have some questions that I can't find anywhere in my searches . I know there's assessories for the PIII but is there only one part number for the controller itself ? Does the PIII come with a wiring pigtail that can be mated to the vehicle brake controller pigtail or is it necessary to buy the vehicle specific wiring harness for the PIII ? I have one trailer with electric magnet brakes and another trailer with electric hydraulic brakes . Does the PIII work well with both ? Is there any other good brake controller for both kinds of trailer brakes ? Thanks ,Craig

The P3 is an excellent controller. However, it is not a 'set it and forget it' unit. Mine has to be set for highway travel or around town situations or the wheels lock up in slow in town type of stops. The unit has boost features so it is very easy to adjust.

My P3 came with just the open ended pigtails that plugged into the P3. (i.e. connector on one end only) My 4Runner, bought new, had the vehicle specific adapter in the glove box so for me it was just a plug and play operation.

The P3 does have an option for electric hydraulic brakes so you would have to change it depending on what vehicle it was in at the moment.