Had the aircon serviced yesterday. When I picked the car up, the mechanic said the system had hardly any gas left (0.08kg). I reckoned it must have been a long time since the previous service job... Mechanic had filled the system with 1 kg coolant, and pressurized it at 10 Bar, according to the service report.

This morning, decided to run the self-diagnostic system (I know, should have done that before the service). Component no.7 (=Refrigerant pressure in Bar) said: 03 At a previous check last year, this value was 12.

Next did a fault-diagnosis test, and these codes turned up:
232 - Refrigerant Pressure Sensor (B12)
235 - Emissions (Refrigerant leak) Sensor (B31)
416 - Coolant Circulation Pump
My system has Software version 60, and hardware version 19

Seems clear the aircon has a leak, but do the other fault codes perhaps point to more trouble ??

Thanks

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2011 Prius

Those trouble codes may mean trouble, but does the system not put out cold air? Mine runs at 3 most of the time, hitting or exceeding 12 only at a very high load.

Thanks for the reply. The service report says it generates 8 degrees C, but that was yesterday. It is actually around freezing point here at the moment, which could explain a low load.
Another idea crossed my mind: does the aircon's OBD system need to be reset after replacing the refrigerant??
Maybe I'm reading 'old' data.

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2011 Prius

Without digging out my climate-control manual, I'd guess yes. If need be, I'll dig it out.

I lost refridgerant in my 210 last fall, and hopefully it was a result of a bad auxiliary fan causing the compressor to bleed off. I topped it off the other day when it was about 65 out, and the auxiliary fan now works, so soon enough I'll know if mine's leaking.

In my case, I filled the system until the left vent temperature matched the right. Before adding anything, I had 65F left, 55F right. After, they were both about 40F. Not very precise, I know, but it should be enough.