Mercedes Benz repair: Air induction #2 Sensor????, amp fuse, air induction

Question
got that as a reading for a ML 320 2001 year model off a computer. I looked under the hood and the Big 40 amp fuse blew 2 times and that was for the air induction blower. The check engine light has come on since. Any ideas on what this is??? Is there a blower for the air induction or is it the o2 sensor. Thanks would appreciate a quick response Thanks stranded Motorist(Jason)

Answer
sounds like your secondary air pump system
read this how to clean
http://www.benzworld.org/forums/w163-m-class/1348815-how-clean-secondary-air-inj...
pics are messed up in beginning but read on as far as the blowing fuses follow the wires chances are your line or something is grounding it out with too much to blow the fuse