Due to the chassis fault the C1135 Code has come and it is necessary to solve the car engine. For solving the problem from engine, any component is necessary to be replaced with reference to only a C1135 DTC. The car service manual should be checked for more information on likely causes of the fault and required testing. Do not follow the general information what you can get with the Google search engine. However, you should try to use the manufacturer information for solving the car engine. There are many meanings available but you must use the manufacturer information according to your car brand.