It really is 1000 kPa, it sure might be 100 kPa so it might be normal surrounding pressure.
I read somewhere that there is some analog pressure sensor that gives pressure reading in voltages to ECU or what ever is controlling A/C system?
Well, I made some testings and took hats off from relays K60 and K87 under bonnet. Car was running.
When I pressed contacts on relay K87, both fans switched ON.
When I pressed contacts on relay K60, both fans switched ON and compressor engaged.
So I believe all wirings are OK.
I believe now I have about three options left and one extra option:
1. Pressure too high
(I don't really believe so because A/C worked fine for one day).
2. Pressure too low.
3. Pressure sensor/switch defected.
(4. take it to the service
)
Maybe next I'll connect OBD-reader again and check if pressing pressure valve gives me any PUFF and if so, does that affect the reading I see on live parameters..