I have a 2012 Accord SE and have some steering shimmy when breaking, comes and goes. Front dr rotor has 0 runout, pas has 2 thousands. I have an inside lip on both sides at 20k miles. Thought calipers were sticking and removed, cleaned. Pins look new - because they are - so I just greased, they move freely by hand. No vibration when pulling parking brake. Ideas?

 

I have seen the theory that brake pulsation frequently occurs due to brake pad deposits buildup on the rotor and not necessarily rotor uneven surface.

Following video shows a method for polishing the surface to remove deposits and claims to have been successful. Only problem is a lot of work to trial the method and may have to repeat to install new rotors. New rotors are not that expensive.

Make sure you don't have any loose play in upper/lower ball jts or tie-rod ball jts.

good luck

 

Turns out the 2 thou runout is beyond limit, book says .0015. What's bothersome is that the car only has 20k miles. The now gone 6 gen saw new rotors at 70k. Quality went down on this one.