Component Description

WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

PRB

The Power Running Boards (PRBs) are attached to the vehicle body with 2 PRB hinges with the front PRB hinge having the PRB motor attached. The front PRB hinge and PRB motor are serviced as an assembly. There is a PRB connecting rod between the front and rear PRB hinge that makes the PRB move evenly and smooth during operation. There are also 2 end caps on each PRB. The PRB torsion bars and end caps are serviced individually.

RBM

The RBM determines the need to move the LH or RH PRB and applies voltage and ground on only 2 circuits to the PRB motor in order to stow (retract) or deploy (extend) the PRB. To stow the PRB, the RBM applies voltage on the RB STOW circuit and ground on the RB DEPLOY circuit. To deploy the PRB the RBM switches the voltage and ground so the voltage is applied to the RB DEPLOY circuit and ground to the RB STOW circuit. The RBM monitors the movement and position of PRB with a hall-effect switch that is part of the PRB motor. The RBM supplies a 10 volt controlled voltage and a ground circuit to the PRB motor hall-effect sensor and receives a sensor signal from the hall-effect sensor.

PRB Motor

The PRB motor is a reversible motor that incorporates an internal hall-effect sensor for monitoring the position and movement of the PRB. The PRB motor is serviced as an assembly with the front PRB hinge.