The general or automobile meaning of the engine U1116 Code is not useful thing for the car engine solution but some people are interested to learn this code meaning. The automobile meaning of the code is U for Network Code Problem is climate control system, lighting, airbags, etc. 1 for MFG – Manufacturer Specific. 1 for Transmission. 1 for Low Coolant Circuit and 6 for Cruise Control System – Vehicle Accel Too High. Do not use wrong meaning of the code for solving the car engine. For using the wrong meaning of the code, you may face different car engine problems.