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EC-1166 < COMPONENT DIAGNOSIS > [K9K] P0530 REFRIGERANT PRESSURE SENSOR P0530 REFRIGERANT PRESSURE SENSOR Description INFOID:0000000001162634 The refrigerant pressure sensor is installed at the condenser of the air conditioner system. The sensor uses an DTC Logic INFOID:0000000001162635 DTC DETECTION LOGIC NOTE: . Diagnosis Procedure INFOID:0000000001162636 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Check ground connection E15. Refer to Ground inspection in Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace ground connection. 2. CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT 1. Disconnect refrigerant pressure sensor harness connector. 2. Turn ignition switch ON. 3. Check the voltage between refrigerant pressure sensor connector and ground. Is the inspection result normal? YES >> GO TO 4. NO >> GO TO 3. 3. DETECT MALFUNCTIONING PART Check the following. >> Repair open circuit or short to ground or short to power in harness or connectors. 4. CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec- DTC No. Trouble diagnosis name Possible cause P0530 REFRIGERANT PRESSURE SENSOR CIRCUIT • Harness or connectors (Refrigerant pressure sensor circuit is • Refrigerant pressure sensor Refrigerant pressure sensor Ground Voltage Connector Terminal E17 3 Ground Approx. 5V |