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Old 05-17-2011, 08:02 PM   #15
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Scott J-24's Avatar
2009 27' FB International
Los Angeles , California
Join Date: Apr 2011
Posts: 731

Didn't think of the antilock brakes being part of the problem. I no longer have the instructions that came with the P2 controller, but can access them on line. That would explain the sensation I was feeling. When you said "...adjusting the controller upwards...", I presume you mean increasing the P2 controller gain so the TT brakes lead the TV brakes. Is that correct? Thanks for the suggestion.

Scott, Becky & Heidi (our standard poodle and travel companion)
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2009 27FB International Ocean Breeze
2010 Toyota Tundra CrewMax, 5.7L V8, 4x4
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Old 05-18-2011, 12:30 AM   #16
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1978 31' Sovereign
Oakley , California
Join Date: Feb 2011
Posts: 1,197
Im not sure how Toyota wires their system but I just don't see how an electric brake control could affect a disparate system like the hydraulic antilock system? I could see pulsating pedal as the AL system attempts to compensate for the added "push" to the TV...but your brake controller is basically a rheostat for the 12v power being sent to the plug. More voltage out equals greater braking force applied at the trailer. No relationship at all to the TV's braking system.

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Old 05-18-2011, 05:36 AM   #17
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Belington , West Virginia
Join Date: Mar 2006
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You are over thinking what is almost certainly a warped rotor problem. Take the truck up a mountain - sans trailer - and as you come down, get the brakes good and hot. The hotter they get, the more they'll shake.

After you verify that it is the rotors, go buy new rotors and pads. Don't bother with resurfacing. Make sure the calipers are not sticking. This should be checked both cold and at operating temperatures. AS per ROBERT CROSS, "Don't scrimp." Go with original equipment or better.

Then, learn to manage the heat in the brakes on the truck. Use gearing to slow the truck when you can. Make certain the trailer brake is adjusted properly. Heat is your enemy. Once a rotor is allowed to warp it will only get worse. Resurfacing compromises the rotor even more by removing material and generally means the warp will return sooner than later - especially if put back into the same type of service.

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