The engine C1836 Code is a necessary thing and it helps to identify the problem of the car engine. As the code has started with C alphabet, it means the chassis problem is problem. You may use automobile dictionary meaning for solving the car engine but make sure that you are doing the right thing. The automobile meaning is C for Chassis Code Problem is controller area network wiring bus and modules. 1 for MFG – Manufacturer Specific. 8 for Ignition System Or Misfire. 3 for Cruise Control Servo Indicates Low and 6 for Cruise Control System – Vehicle Accel Too High.