The real meaning of the C1164 Code is necessary to know for fixing the car engine problem. Every car manufacturer has set a meaning of the same code and if you do not know the exact meaning of the code, you cannot solve the car engine problem. The automobile or general meaning of the code is not helpful for solving the car 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. 6 for Control Module Throttle Actuator Position Performance. 4 for Cruise Vehicle Speed/Set Speed Difference Too High.