Bobcat 090526 6683608 Joystick Control Module is a dedicated input board that translates operator stick movements into hydraulic or motor commands on Bobcat skid‑steer loaders. Common failure points include burned or tripped MOSFETs in the power driver section, damaged signal traces from vibration or corrosion, and failing opto‑isolators that lose isolation between the joystick and controller circuitry. For first‑line checks, verify that the module receives its rated 24 V DC supply and that all ground connections are secure; inspect for visual signs of overheating or component damage; and read any stored diagnostic codes from the loader’s main control unit to confirm a joystick fault. If power and wiring appear correct but the joysticks remain unresponsive, swap in a known good module or test the input signals with an oscilloscope to isolate the defective section.[oss-gpt-20b]