The meaning of the B2315 Code has a real meaning according to the manufacturer for solving the car engine problem. The code has dictionary meaning and it is also available online but it is not trust worthy. You have to get the real meaning and read the manual of the car and car engine for recognizing the general meaning. The automobile dictionary of the code is existing online and it gives you general information. The real meaning of the code is found from the manual of the car engine. The code has started with the B, it means that body of the car engine and fixing the body of the car engine is easy and cheap to fix.