hello all
i have problem with my A/C its not cold and when i stop for 1min in the day it turned hot when i move above 80k/m speed its better but still not cold i found on youtube how to diagnose the problem by holding Auto button and another button when i start the engine and i got error cod 79 and 47

sorry for my bad English, i want to know what those numbers means and what is the problem?

this is the the codes i got

thank you

 

I am not familiar with these codes, but it should not be run like that. The compressor does have a fail safe if the PSI gets too low, but damage can be done prior to the switch shutting it down. Just leave it off until you take it to any shop that can service A/C and let them troubleshoot and charge the system.

 

i found some have error 47 and its related to the temperature sensor under the steering wheel, but im still trying to find out what is code 79.

 

anyone know what is code 79?

 

Code 79 is also known as B1479..
Its the refrigerant flow sensor. It's a cheap fix for just the sensor. You can test it with a magnet to see if ac will work. Just Google toyota b1479 ac flow sensor repair

 

On this link to the RX forum, see around post 140 for how to place the magnet on the air conditioner compressor. https://www.clublexus.com/forums/rx-...olution-9.html