The engine B2502 Code is related with the automobile engine and if the meaning of the code is found properly, you may face serious problem. The general meaning of the code is B for Body Code Problem is antilock brake system, electronic suspension and steering systems. 2 for MFG – Manufacturer Specific. 5 for Computer And Auxiliary Outputs. 0 for IC Circuit High Voltage and 2 for A/C System High Pressure High Temperature. The B2502 engine code is a kind of body problem and it is easy to solve the car engine problem. Test drive is necessary to know the engine is ok or not.