The B1985 Code is related with the car engine problem and for solving the car engine problem, it is necessary to know the real meaning of the code and you can retrieve the meaning of the code when you know the manufacturer name and model number of the car. The code explains more information and dictionary meaning of the code is also general. 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. 9 for Fuel and Air Metering (Injector Circuit Malfunctions Only). 8 for Exhaust Gas Recirculation System Valve one. 5 for Park/Neutral Position (PNP) Switch Circuit Engine Torque Signal Circuit.