The engine C1146 Code helps you to solve the car engine problem. The C1146 engine code appears a kind of chassis problem. The general meaning of the code is C is Chassis Code Problem is controller area network wiring bus and modules. 1 is MFG – Manufacturer Specific. 1 is Transmission. 4 is BBV Sensor Circuit Low Voltage and 6 is Cruise Control System – Vehicle Accel Too High. The regulators of each cylinder are kept shut using a pair of the arms that substitute the conformist engine’s roller-type rocker arm. The C1146 code is one of these arms follows the cam profile while the 2nd arm attaches to the valves. During normal engine operation the 2 arms are combined by a locking pin.