A/C Refrigerant Pressure Sensor and Its Circuit Inspection
Precautions: Precautions for Diagnosing Trouble · General safety (00)
1)Disconnect A/C refrigerant pressure sensor connector.
2)Set ignition “ON”.
3)Check that voltage between “GRY” wire terminal and “LT GRN” wire terminal of A/C refrigerant pressure sensor connector is 4.75 V to 5.25 V.
If check result is not as specified, check A/C refrigerant pressure sensor circuit.
If check result is not as specified, check A/C refrigerant pressure sensor circuit.
4)Connect A/C refrigerant pressure sensor connector with ignition “OFF”.
5)Connect manifold gauge set to charging valves.
6)Check A/C refrigerant pressure sensor voltage of ECM connector.
•M16A model: 
•K14C model:
•D16AA model:
If voltage is not as specified, replace A/C refrigerant pressure sensor. •K14C model:
•D16AA model:
A/C refrigerant pressure sensor voltage specifications (A/C refrigerant pressure measured by manifold gauge)
| [A]: | Voltage | [B]: | Pressure on high pressure gauge |