Picasso 2004 aircon dead

[bighairybloke]

Hi, last fault on this car… aircon doesn’t kick in at all, the compressor I mean, when ac button is pressed.
Lexia says
1 exterior temperature sensor incorrect value received
2 vehicle speed information incorrect value received
3 water temperature sensor (VAN) incorrect value received
Any advice
Ta
Steve

[GiveMeABreak]

First check what the outside temperature actually is and then compare that with what the temperature is reading on the display. If this is significantly out, then it can prevent the AC from working. Then check the other things.

I assume the refrigerant has been topped up or the system tested for leaks.

You should have actual fault codes coming up - please post these here so we can relate these to the engine management system fitted.

[bighairybloke]

All got got was this, clicking on each one bought up no more information

[GiveMeABreak]

If you select the fault and confirm the selection, it should bring up more detail and a fault code.

Or run a global test and from the list it should list the faults.

[bighairybloke]

I will give it another go, but the next page had no further info.