The engine U2000 Code lets know the problem of the automobile engine and you will get different meaning of the same code. Do not follow any meaning of the engine code. You will get the general meaning of the engine code but it is not proper meaning of the code for fixing the car engine problem. The automobile meaning of the code is U means Network Code Problem is climate control system, lighting, airbags, etc. 2 means MFG – Manufacturer Specific. 0 means Fuel And Air Metering. 0 means IC Circuit High Voltage and 0 means Transmission Engaged At High Throttle Angle.