easysteer speed sensitive controller can be used on the B and T series systems to convert the power steering to speed sensitive, converting speed pulses into a signal that the steering ECU expects to see. This ultimately gives the steering ECU the ability to run different assistant levels depending on the vehicle speed, as it was designed to, and all the changes in steering assistance are done seamlessly. This involves mounting a remote proximity sensor to the vehicle to read speed, normally pointed at the prop shaft or a wheel hub.