You need to know the B1942 Code meaning and getting the dictionary meaning is very easy but real meaning of the code is highly important what you can find after getting the manufacturer name and model number. The general 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. 4 for BBV Sensor Circuit Low Voltage and 2 for A/C System High Pressure High Temperature. Body of the engine has the main problem and it is not difficult to solve.