The general meaning of the engine B2528 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. 2 for Air Conditioning (A/C) Clutch Feedback Circuit High Voltage and 8 for PCM Stack Overrun. However, if you know how to fix the car engine problem, you must not use this general meaning for solving the car engine problem. The manufacturer of your car has set a real meaning of the code and you must use that meaning for solving the engine. You may face terrible problem if you follow the general meaning.