Check engine light ON, code read p0498 of 2010 Honda CR-V

Question

I have check the voltage of the connector to the EVAP vent valve; it's only 0.4V.
When I applied a 9V voltage to the EVAP valve pins, I could hear a "click" sound from the relay. so I assume the valve is no problem.
The resistance of the valve is 29 ohms .
Also the fuse #11-LAF and fuse#19 -pGM F1 main are fine, and the relay of the pGM F1 sub is OK too.

Can anyone tell me what are the most probable causes of this P0498?

Answer 1

This one condition one side is battery voltage when the key is on, engine running, the command to vent is from the ECM which sends a ground. This is usually a ECM problem

Answer 2

P0498 HONDA Code - Evaporative Emission System Canister Vent Shut Valve Control Circuit Low Voltage
Read more: https://www.autocodes.com/p0498_honda.html