I’m bored who wants to chat with me

The authors use the word “backbone” in lines 3 and 39 to indicate that

What term refers to the initial training given to all new employees?

The power train control module (pcm) or engine control module (ecm) will automatically clear a diagnostic code (dtc) if there are no additional faults detected aftera. the criteria to clear codes is reachedb. eighty warm up cyclesc. five key-on/key-off cyclesd. two consecutive trips