Friday, June 19, 2020

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) B CODE Page 443


NOTICE:



If refrigerant pressure on the high pressure line is excessive, this DTC will be set. Therefore, it is necessary to measure the voltage



over a period of time (approximately 10 minutes) because this DTC may be set after the A/C has been operating for a while.



HINT



When the outside air temperature is low (below -1.5锟斤拷C (29.3锟斤拷F)), the compressor stops due to signals from the ambient



temperature sensor and the evaporator temperature sensor to prevent the evaporator from freezing. In this case, perform the



inspection in a warm indoor environment.



Result:



B -- REPLACE A/C AMPLIFIER



A -- END



From 08/2009



HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: B1423/23: Pressure Sensor Circuit



B1423/23 - Pressure Sensor Circuit



DESCRIPTION



This DTC is output when refrigerant pressure on the high pressure side is extremely low (0.19 MPa (2.0 kgf/cm2, 28 psi) or less) or extremely high



(3.14 MPa (32.0 kgf/cm2, 455 psi) or more). The A/C pressure sensor is installed on the high pressure line. It detects refrigerant pressure to output a



refrigerant pressure signal to the A/C amplifier. The A/C amplifier converts this signal to a pressure value according to the sensor characteristics to



control the compressor.

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