Within the last year I purchased a 16 foot dual axle PJ Trailer with brakes on both axles. After about a month of use I noticed the trailer brakes would rapidly pulsate on and off on brake apply. My dealer gave me a new brake module and it fixed it for about a week or so and now its doing the same thing. I noticed that when I first hook up to the trailer it doesn't pulsate until after its been hooked up for an hour or so. The intensity LED on the brake module also blinks on and off at the same rate the trailer brakes are pulsating. Anyone else experience this and how did you correct it?