Introduction The Jungheinrich EJE 120 is widely regarded as the workhorse of modern warehouses. Known for its robust lithium-ion or lead-acid options, intuitive tiller arm control, and impressive 1.2-ton load capacity, this pedestrian pallet truck is built for high-intensity logistics. However, like any sophisticated piece of machinery integrated with CAN-bus systems and redundant safety circuits, it is susceptible to electronic faults.