This U0101 Code is associated with the engine and if you do not get the real meaning of the code, you cannot solve the car engine. This engine area code is necessary thing and it is easy to gain the general meaning from the online. The general meaning of the code is U for Network Code – Problem is climate control system, lighting, airbags, etc. 0 for SAE Generic. 1 for Fuel And Air Metering. 0 for Air Conditioning (A/C) Clutch Feedback Circuit High Voltage and 1 for PCM Stack Overrun. Do not use false information for solving the car engine. You may face more problem.