The engine C1155 Code is description of the car engine problem and that is why, this code has two different meanings available. The general meaning of the code is automobile description meaning what you will find online but it is not very assisting. The real meaning of the code is related with the manufacturer meaning. Do not worry if you do not know the real meaning of the car engine. An automobile engine must have sufficient knowledge for solving the car engine and he must have tools/machines. Take the car to a professional place where the car engine can be tested and solved the problem.