The automobile dictionary meaning of the engine U1071 Code is found from online and it is not necessary to use for solving the car engine problem. The automobile dictionary meaning of this code is U for Network Code Problem is climate control system, lighting, airbags, etc. 1 for MFG – Manufacturer Specific. 0 for Fuel And Air Metering. 7 for Vehicle Speed Output Circuit and 1 for TFP Valve Position Switch-Drive Without Drive Ratio. You have to know the real meaning of the engine code what may not be similar with your car engine problem. By the proper verification of the car engine to know the cause of the engine problem.