The B1758 Code is found when the car is verified and you need to solve the problem from the car. The car engine does not run properly if you do not solve the problem. For the body of the engine, the problem code has appeared. 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. 7 for Auxiliary Emission Controls. 5 for TP Sensor Learn Not Complete and 8 for PCM Stack Filled. You need to solve the problem as soon as possible if you want to drive the car without any problem.