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