Porsche HVAC System Check
Supported coding features by PoCOM diagnostic tool https://www.obdtester.com/pocom
What it does
- Performs a functional check of the HVAC (Heating, Ventilation, Air Conditioning) system
- Verifies operation of actuators, sensors, and control logic
- Detects faults affecting climate control performance
When it is required
- During routine diagnostics or inspection
- When heating, ventilation, or air conditioning does not operate correctly
- After HVAC component replacement
- After electrical or control unit repairs
Conditions that must be met
- Ignition ON
- Vehicle stationary
- Stable battery voltage
- Diagnostic tool connected
What happens during system check
- Actuators (flaps, blower, valves) are activated sequentially
- Sensor values (temperature, pressure) are evaluated
- Control unit checks system plausibility
- Fault codes are generated if abnormalities are detected
If system check is not performed
- HVAC faults may remain undiagnosed
- Reduced comfort or system performance
- Persistent error messages or fault codes
After system check
- Review diagnostic results
- Repair or replace faulty components if required
- Clear fault codes
- Confirm normal HVAC operation