The general meaning of the engine B2529 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. 9 for Kick-Down Switch Failed ShortOverrun. However, if you know how to solve the car engine problem, you must not use the automobile dictionary meaning for solving the engine problem. The manufacturer of the car has set a actual meaning of the code and you should use that meaning for solving the engine. Take the car for a test drive.