B means Brake manner that some styles, which include electrical cars, offer. You can use it to decelerate or manage downhill velocity without the need of using the motor vehicle’s brakes. The shift valve is pressurized with fluid from the governor on one facet, and the throttle valve on another. https://gearboxauto97418.losblogos.com/32926203/the-definitive-guide-to-gearbox-auto