Access 4 Exchange – CR141779R

This Access 4 vehicle control module is the central electronic controller on Crown reach and turret trucks, managing traction, lift, and steering logic while coordinating operator commands with the truck's motor and hydraulic systems. Serving Crown RR and RD5700 and RM and RMD6000 series trucks, the module processes sensor and switch inputs, drives the power stages, and stores diagnostic and event codes that direct service work. Because this controller ties together the truck's core drive and work functions, a failed unit generally takes the truck out of operation. An exchange unit that has been tested and restored returns full control system performance. Confirm the module variant and configuration match your specific truck model and installed options.