The general meaning of the car engine P1852 Code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 1 for MFG – Manufacturer Specific. 8 for Ignition System Or Misfire. 5 for TP Sensor Learn Not Complete and 2 for A/C System High Pressure High Temperature. The general meaning of the code is helpful but you must look for the real meaning of the code what is found from online for free. Do not use any wrong meaning of the code for solving the car engine. Due to use of the wrong meaning of the code, you may face terrible problem in the car engine.