The B1493 Code has several meanings and it is necessary to identify the exact meaning of the faulty engine. For exact meaning of the code, knowing the model number and name of the manufacturer is necessary as well as reading the manual is also necessary. B for Body Code Problem is antilock brake system, electronic suspension and steering systems. 1 for MFG – Manufacturer Specific. 4 for Transmission. 9 for Crankshaft Position Sensor Circuit Performance and 3 for Transmission Control Module Reprogrammable Memory. From the B1493 Code dictionary meaning, it is identified that the body of the engine has the main problem.