What exactly does this mean in layman's term?

Question

Evaporative Emission System Leak Detection Pump Control Circuit High

I have a 2007 Volvo XC90
Check engine light was diagnosed with code P2402

Answer 1

The pump that dectects the EVAP system leak might be bad or there is a leak that is why the pump is not getting a correct reading.

There is a Service bulletin that might apply to your car is it does not have the latest ECM update that might be causing the issue.