Refrigerant R134a Physical Data
Vehicle air conditioning systems make use of the
vaporization and condensation process. In this case, one works
with a substance which boils easily, designated as refrigerant.
The refrigerant used is tetrafluoroethane R134a, which boils
at -26.5 ºC (-15.7 ºF) at
Note
The following is a generic explanation of the requirements,
coverage, and operation of Mode 0A.
Mode 0A may only be supported exclusively by OBD control
modules in US vehicles. Mode 0A may not be supported in EOBD
vehicles, meaning the control module may not send a response
her