Continuation of test - Pressure in refrigerant circuit increases

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Open hood. Repeat cooling output test → A/C refrigerant system, testing . Operation of Coolant Fan V7 during cooling output test (speed is governed by coolant temperature and pressure in refrigerant circuit; determined by engine control unit)?
↓ Yes ↓		↓ No ↓
Read measuring value block, display group "001" zone "4" (pressure in refrigerant circuit). Operation of Coolant Fan V7 at higher speed with increase in pressure in refrigerant circuit (reading measuring value block, display group "014")		Check activation of Coolant Fan V7, perform Output Diagnostic Test Mode (DTM) diagnosis → Output Diagnostic Test Mode (DTM) (function 03) . Repair activation of Coolant Fan V7. Repeat cooling output test → A/C refrigerant system, testing .
↓ Yes ↓	↓ No ↓
Fault in refrigerant circuit. → Refrigerant Circuit Repair Information	Check activation of Coolant Fan V7 → Output Diagnostic Test Mode (DTM) (function 03) (perform Output Diagnostic Test Mode (DTM) diagnosis). Repair activation of Coolant Fan V7.

NOTE:

The pressure in the refrigerant circuit is governed by various factors. In general, however, at an ambient temperature of 20 to 25 °C the pressure should not exceed 20 bar. Under extreme usage conditions (e.g. in hot countries with high ambient temperatures, "stop and go traffic" and high relative humidity), the high cooling output then required may also result in pressures of up to 31 bar.
At ambient temperatures below 25 °C the pressure in the refrigerant circuit does not usually rise above 16 bar (Coolant Fan V7 run(s) and cool(s) condenser).
The duty cycle (reading measuring value block → Read Measuring Value Block (function 08) , display group "001", display zone "3") is used by the operating and display module, Climatronic Control Module J255 to calculate the pressure in the refrigerant circuit.
If the duty cycle is less than 12.5% (corresponding to approx. 1.8 bar absolute pressure) and greater than 87.5% (corresponding to approx. 32 bar absolute pressure), the operating and display module, Climatronic Control Module J255 does not switch on the compressor (the A/C Compressor Regulator Valve N280 is not activated). The compressor is only re-activated once the duty cycle exceeds 12.5% (corresponding to absolute pressure of 1.8 bar) or drops below 48% (corresponding to absolute pressure of 16 bar).
To prevent abrupt compressor shutoff because of excessive pressure in the refrigerant circuit or excessive coolant temperature, the compressor output is reduced by the operating and display module, Climatronic Control Module J255 :
- As soon as the pressure in the refrigerant circuit exceeds 30 bar (absolute) (full compressor output is not released again until pressure has dropped below 27 bar)
- As soon as the coolant temperature exceeds 115 °C (full shutdown at 118 °C)
If the pressure in the refrigerant circuit had been in excess of 32 bar (duty cycle greater than 87.5%), the operating and display module, Climatronic Control Module J255 does not reactivate the compressor until the pressure has dropped below 29 bar (duty cycle less than 84%).
For further notes on pressure in refrigerant circuit, refer to → Read Measuring Value Block (function 08) "Reading measuring value block", display group "001".