also covers theory of manual and automatic transmissions as
AUT251 Automotive Heating and Air Conditioning Systems 2 Prerequisites: AUT221 and AUT222 (both courses must be completed with a grade of “C” or better) and reading proficiency Corequisite: AUT252 Automotive Heating and Air Conditioning Systems involves the theory and operation of the heating systems, the mechanical refrigeration systems, and the electrical and vacuum control systems used on automobiles. Completion of this course will prepare students for employment in the automotive field and to take the National Institute for Automotive Service Excellence (ASE) Heating and Air Conditioning (A7) test. (S)