The automobile meaning of the U1185 Code is found online and it not necessary to use for solving the car engine problem. The automobile meaning of the engine is U for Network Code Problem is climate control system, lighting, airbags, etc. 1 for MFG – Manufacturer Specific. 1 for Transmission. 8 for Exhaust Gas Recirculation System Valve 1 and 5 for Park/Neutral Position (PNP) Switch Circuit Engine Torque Signal Circuit. If you do not know how to solve the car engine, then you must not try to solve the car engine problem. You take the car to expert automobile engineer to fix the car engine issue.