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This DTC is output when refrigerant pressure is extremely low (196 kPa (2.0 kgf/cm 2 , 28 psi) or less) or extremely high (3140 kPa (32.0 kgf/cm 2 , 455 psi) or more). The pressure switch, which is installed on the pipe of the high pressure side to detect refrigerant pressure, outputs a refrigerant pressure signal to the air The air conditioning amplifier controls the compressor according to the sensor characteristic. HINT: Be sure to check the refrigerant volume first when this DTC is output because this DTC can also be output if DTC DETECTION CONDITION CHART WIRING DIAGRAM Fig. 117: Pressure Sensor - Wiring Diagram INSPECTION PROCEDURE HINT: Be sure to check the refrigerant volume first when this DTC is output because this DTC can also be output if DTC DTC Detection Condition Trouble Area B1423/23 Open or short in pressure switch circuit Air conditioning pressure Harness and connector Air conditioning amplifier
2009 Toyota Tundra 2009 HVAC Air Conditioning - Tundra
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