The engine B2561 Code is necessary thing for car engine problem solution. Do not try to solve the car engine problem if you have no ability or experience. The meaning of the code is available online. 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. 6 for Control Module Throttle Actuator Position Performance and 1 for TFP Valve Position Switch-Drive Without Drive Ratio. Do not use this meaning for solving the car engine. The real meaning of the code is necessary for solving the car engine problem.