Moveable Roof Control Module B (MRCMB)

The Moveable Roof Control Module B (MRCMB) is the secondary electronic control unit for the convertible top system and communicates with the Moveable Roof Control Module A (MRCMA) over the MS-CAN and the BCM over the HS-CAN1 through the GWM. The Moveable Roof Control Module B (MRCMB) monitors one of the tonneau cover Hall-effect switches and MS-CAN messages from the Moveable Roof Control Module A (MRCMA) and directly controls the convertible top using a motor. The Moveable Roof Control Module B (MRCMB) also contains a Hall-effect switch to detect convertible top movement and position (open, closed, moving).