Those who tow with a Toyota Tundra

[66lincoln]

I seem to have continuing integrated brake controller issues with mine.

Last Friday, I had Toyota check the IBC software and it's all up to date.

At a gain of 10, I get braking, but no dramatic and can't lock the trailer brakes. So I bought a Tekonsha P3 with the matching dash panel and wire adapter. At a gain of 14 and using B1, B2 and B3 I still can't lock the trailer brakes.

Hook the trailer to a friends F150, good braking at gain 3 and locking the brakes at gain of 5.

This would be my only complaint with the Tundra that many, many others have experienced. Can't seem to find out why the voltage is insufficient.