The A/C pressure sensor converts A/C pressure into electrical signals to the ECM/PCM.
NOTE: The pressure can be monitored using the HDS PGM-FI Data List.
The response of the A/C pressure sensor is shown in the graph.
NOTE: When the refrigerant is below 196 kPa (2.0 kgf/cm
2
, 28 psi) or above 3,138 kPa (32 kgf/cm
2
, 455 psi), the ECM/PCM turns the compressor relay off to protect the A/C compressor. When the refrigerant is above 1,390 kPa (14.2 kgf/cm
2
, 202 psi), the A/C pressure sensor switches the radiator and A/C condenser fans to high speed.