The engine C1452 Code explains the problem of the car engine and it is necessary to know the real meaning what you get from your car manufacturer but the general meaning of the code is available. 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. 4 for Transmission. 5 for TP Sensor Learn Not Complete and 2 for A/C System High Pressure High Temperature. The chassis problem is easy to fix and the code is related with the chassis problem. It can be fixed at cheap rate.