The C1405 Code has automobile meaning and for solving the car engine, you need to know the automobile meaning of the code. The general or automobile meaning of the C1405 code is c for Chassis Code Problem is controller area network wiring bus and modules. 1 for MFG – Manufacturer Specific. 4 for Transmission. 0 for IC Circuit High Voltage and 5 for Park or Neutral Position (PNP) Switch Circuit Engine Torque Signal Circuit. Deactivation process of the cylinders is realized by releasing a synchronizer pin that generally interlocks the cam follower and rocker arms. The engine C1405 code solves the synchronizer pin is free by hydraulic pressure.