The general meaning of the U1017 Code is automobile dictionary meaning and it is not very helping content for your car engine. You need to collect the automobile dictionary meaning and you will get that meaning from the automobile manufacturer. The general/automobile meaning of the code is U means Network Code Problem is climate control system, lighting, airbags, etc. 1 means MFG – Manufacturer Specific. 0 means Fuel And Air Metering. 1 for Low Coolant Circuit. 7 for Cruise Inhibit Control Circuit. You should use the automobile car engine for solving the engine problem and if you are experienced, you can easily solve the problem.