Re: Pulsating rear brakes
Do you feel the pulsation in the brake pedal? It could be the ABS which starts pulsing, to prevent a wheel lock. If one caliper is dragging, it could maybe cause that wheel to lock up sooner. Did you feel both sides wheels if one (or even both) are hot?
Not sure on the WK how the electronic brake distribution works. A failure in that system could cause too much pressure to the rear wheels, causing them to lock, which the ABS will prevent by pulsing the pressure to the rear wheels.