2007 v70 t5 ex police

[Waynep2]

Hi everyone am looking for some advice regarding low signal to air conditioning pressure switch with the code ECM - 520D, I recently bought the car and the fan is permanently on so I had the ac re gassed which I have done on another p2 and that fixed the issue but not with this one, the I have bought a pressure sensor part number 4057635049641 but am not sure if it’s the correct one as I thought there was a high pressure and a low pressure one but can’t find this information anywhere has anyone fixed this pressure sensor before with the code if so which sensors was it ? I do have a Xtool d9s professional scanner so any advice or ways I can find the issue by doin some tests would be much appreciated as it can be costly having the gas emptied and re filled each time and trying to find the issue. I would like to add that the ac isn’t as cold as it should be since getting re gassed also.

Thanks

[jonesg]

isn't there a simple 2 wire pressure switch on the receiver/dryer (below headlight).

i'd try unplugging it and grounding the wire from the switch, see if it shuts the cooling fan off.

https://www.pelicanparts.com/More_Info/ ... 8623270-M6