The C1922 Code is a necessary thing for solving the car engine problem and if the right meaning of the code is not found, it becomes trouble for solving the car engine problem. Due to the engine chassis problem, the car engine can be solved. The automobile dictionary meaning of the code is C for Chassis Code Problem is controller area network wiring bus and modules. 1 for MFG – Manufacturer Specific. 9 for Fuel And Air Metering (Injector Circuit Malfunctions Only). 2 for Air Conditioning (A/C) Clutch Feedback Circuit High Voltage and 2 for A/C System High Pressure High Temperature.