p0498
Moderate
Honda · Sedans
EVAP Vent Valve Control Circuit Low
Quick Answer
Error code P0498 on your Honda Sedans means: EVAP Vent Valve Control Circuit Low. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
CV3CV4FC1FC4FE1FL5ZC5Accord EX 2024Accord EX-L 2024Accord Hybrid EX-L 2024Accord Hybrid Sport 2024Accord Hybrid Touring 2024Accord LX 2024Accord Sport 2024Accord Touring 2024Civic EX 2024Civic Hybrid Sport 2025Civic Hybrid Sport Touring 2025Civic LX 2024Civic Si 2024Civic Sport 2024Civic Touring 2024Civic Type R 2024ZE4
Likely Causes
How to Fix It
1
Locate the EVAP vent valve (typically mounted on or near the charcoal canister under the vehicle)
2
Disconnect the vent valve connector and test for short to ground in the harness wiring
3
Measure the vent valve solenoid resistance; compare to Honda specification (typically 22-30 ohms)
4
Check the connector pins for corrosion, spread, or damage
5
Replace the vent valve if solenoid resistance is out of specification or valve is stuck
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
EVAP vent shut valve
Wiring harness repair connectors
Charcoal canister (if contaminated)
Related Error Codes