When intake sensor detects that front evaporator fin temperature is 2.5 deg.C (37 deg.F) or less, A/C auto amp. requests ECM to turn compressor OFF, and stops the compressor.
Courtesy of NISSAN NORTH AMERICA, INC.
When the front evaporator fin temperature returns to 5.0 deg.C (41 deg.F) or more, the compressor is activated.