FATC SENSORS AND ACTUATORS 16. A. LINEAR PRESSURE SENSOR Linear pressure sensor is provided on the highpressure tube liquid line of the refrigerant, it is functionally connected to Vehicle Electronic control Unit (VCU) to control the AC compressor, and radiator / condenser fan. REMOVAL 1. Discharge the refrigerant using standard recovering equipment. 2. Remove Front Bumper. (Refer Body Draft) 3. Disconnect electrical connector on sensor. 4. Loosen & remove pressure switch. B. ON VEHICLE INSPECTION (WITHOUT DISMANTLING HVAC UNIT) Alternatively, following test can be conducted without dismantling the HVAC unit: 1. Switch OFF the HVAC unit and allow the HVAC unit to come to ambient temperature. 2. Open the glow box & lowering Glove box lid. 3. Disconnect the Pigtail connection. 4. Measure the resistance it should match to the ambient temperature. Refer graph in Inspection topic. As given in the graph above (~ 5 Ohms or less for ambient temperature of 25ºC and above) C. CONDENSER AND RECEIVER DRIER NOTE For Rain Light Sensor refer LV Electrical system. FATC 26
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