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REFRIGERANT PRESSURE SENSOR EC-947 < DTC/CIRCUIT DIAGNOSIS > [VQ40DE FOR USA AND CANADA] C D E F G H I J K L M A EC N P O REFRIGERANT PRESSURE SENSOR Component Description INFOID:0000000009481651 The refrigerant pressure sensor is installed at the condenser of the air conditioner system. The sensor uses an electrostatic volume pressure transducer to convert refrigerant pressure to voltage. The voltage signal is sent to ECM, and ECM controls cooling fan system. Diagnosis Procedure INFOID:0000000009481652 1. CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION 1. Start engine and warm it up to normal operating temperature. 2. Turn A/C switch and blower switch ON. 3. Check voltage between ECM terminal 63 and ground with CONSULT or tester. OK or NG OK >> INSPECTION END NG >> GO TO 2. 2. CHECK GROUND CONNECTIONS 1. Turn A/C switch and blower switch OFF. 2. Turn ignition switch OFF. 3. Loosen and retighten three ground screws on the body. Refer to OK or NG OK >> GO TO 3. NG >> Repair or replace ground connections. 3. CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT BBIA0564E PBIB2657E Voltage: 1.0 - 4.0V |