The engine B2596 Code is associated with the car engine. If you want to solve the car engine, you need to get the real meaning what is directly associated with the car engine. The real meaning of the code is found from the manufacturer of the car. Do not use fake information for solving the car engine. It means do not use automobile meaning of the car engine. 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. 9 for Crankshaft Position Sensor Circuit Performance and 6 for Cruise Control System – Vehicle Accel Too High.