If you know the meaning of the C1180 Code and you have experience how to solve the car engine problem, you can try to solve the engine problem. The general meaning of the code is C for Chassis Code Problem is controller area network wiring bus and modules. 1 for MFG – Manufacturer Specific. 1 for Transmission. 8 for Exhaust Gas Recirculation System Valve 1 and 0 for Transmission Engaged At High Throttle Angle. The C1180 engine code seems a kind of chassis problem. The deactivation of cylinders is attained by releasing a synchronizer pin that usually joins the cam follower and rocker arms.