Meanings of engine B1655 Code are different and it is related with the car engine. For getting the exact meaning of the code, it is necessary to know the name of the manufacturer and model of the car. For the manufacturer and model, the meaning of the code changes. The dictionary meaning of the code is B for Body Code Problem is antilock brake system, electronic suspension and steering systems. 1 for MFG – Manufacturer Specific. 6 for Vehicle Speed Control and Idle Control System. 5 for TP Sensor Learn Not Complete and 5 for Park or Neutral Position Switch Circuit Engine Torque Signal Circuit.