The C1227 Code is an important thing and if you do not understand the meaning but you know how to fix the car engine problem, you should not try to solve the engine problem. The general meaning or the automobile dictionary meaning are not helpful thing and you will get the real meaning online. 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. 2 for Accelerator Pedal Position (APP) Sensor. 1 for Performance. 2 for Air Conditioning (A/C) Clutch Feedback Circuit High Voltage and 7 for Cruise Inhibit Control Circuit.