Saturday, March 21, 2020

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) B CODE Page 449


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:



NOTICE:



If the DTC was set due to an insufficient or excessive amount of refrigerant, the problem may have been solved after performing



the previous step. However, the root cause of insufficient refrigerant may be refrigerant leaks. The root cause of excessive



refrigerant may be adding refrigerant when the level was insufficient. Therefore, identify and repair any refrigerant leaks as



necessary.



B -- END



A -- Continue to next step.



11. INSPECT A/C PRESSURE SENSOR



(a) Install the manifold gauge set.



(b) Reconnect the A/C pressure sensor connector.



(c) Turn the engine switch on (IG).



(d) Measure the voltage according to the value(s) in the table below.

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