The B2100 Code is real meaning and dictionary meaning. The dictionary meaning of the code is easy to solve. You will get the dictionary meaning from online and you can use Google to find the dictionary meaning. The code B2100 OBD2 exactly mentions to the camshaft timing. In this situation, if the cam timing is over-retarded, the engine light will be illumined and the code B2100 will be customary. The body problem of the engine is easy to solve. That meaning of the code is found of the engine by the consulting the manual of the car engine. You will not drive the car if the car engine is not solved.