Do not use wrong meaning of the engine U1113 Code and it is easy to know the common meaning of the code. Do not follow wrong meaning of the or other manufacturers meaning of the engine code. The automobile meaning of the engine code and it 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 3 for Transmission Control Module Reprogrammable Memory. It is necessary to fix the car engine as soon as possible. You must take the car for a test drive.