Body of the engine has the problem and this’s because, the B1949 Code appears. Due to the B letter, it is defined that the body of the engine has the problem. 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 9 for Kick-Down Switch Failed Short. This meaning is general and it says that body of the engine has the main problem and it is easy to solve.