AutoCodes – Hyundai – P0499 Hyundai

P0499 Hyundai Code - Evaporative Emission System Vent Valve Control Circuit High

Quick Answer

The Evaporative Emissions (EVAP) system prevents Hydrocarbon (HC) vapors from the fuel tank from escaping into the atmosphere where they could form photochemical smog. Common causes include Faulty Canister Close Valve (CCV), Canister Close Valve harness is open or shorted, Canister Close Valve circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: P0499 Hyundai indicates Evaporative Emission System Vent Valve Control Circuit High.
Common causes: Common causes include Faulty Canister Close Valve (CCV), Canister Close Valve harness is open or shorted, Canister Close Valve circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 4,165

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0499 Hyundai Description

The Evaporative Emissions (EVAP) system prevents Hydrocarbon (HC) vapors from the fuel tank from escaping into the atmosphere where they could form photochemical smog. Gasoline vapors are collected in the charcoal canister. The Canister Close Valve (CCV) closes off the air inlet into the canister for leak detection of the evaporative emission system. The CCV also prevents fuel vapors from escaping from the canister. When the engine purges the HC vapors from the canister, the clean air comes into the canister through the canister air-filter and the CCV.

OBDII Code P0499 Hyundai - Evaporative Emission System Vent Valve Control Circuit High - AutoCodes.com — P0499 Hyundai Code - Evaporative Emission System Vent Valve Control Circuit High

What does this mean?

What are the Possible Causes of the DTC P0499 Hyundai?

Faulty Canister Close Valve (CCV)
Canister Close Valve harness is open or shorted
Canister Close Valve circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0499 Hyundai?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0499 Hyundai code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0499 Hyundai code?

Need more information on how to fix the P0499 Hyundai code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0499 Hyundai code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0499 Hyundai Code

1. What is OBDII code P0499 for Hyundai?

- OBDII code P0499 for Hyundai refers to the Evaporative Emission System Vent Valve Control Circuit High.

2. What are common symptoms of code P0499 in a Hyundai vehicle?

- Common symptoms of code P0499 in a Hyundai vehicle may include the check engine light being illuminated, rough idling, decreased fuel efficiency, and a strong fuel odor.

3. What are possible causes of code P0499 in a Hyundai car?

- Possible causes of code P0499 in a Hyundai car include a malfunctioning vent valve, a damaged vent valve circuit, wiring issues, or a faulty PCM (Powertrain Control Module).

4. How serious is OBDII code P0499 in a Hyundai?

- While OBDII code P0499 in a Hyundai may not cause immediate drivability issues, it is important to address the underlying problem to prevent further damage to the vehicle's emission control system.

5. How can I diagnose OBDII code P0499 in my Hyundai?

- Diagnosing OBDII code P0499 in your Hyundai may involve using an OBDII scanner to retrieve the specific fault code, checking the vent valve and its circuit for any visible damage, and testing the wiring for continuity.

6. Can I drive my Hyundai with OBDII code P0499?

- It is generally safe to drive your Hyundai with OBDII code P0499, but it is recommended to have the issue diagnosed and repaired as soon as possible to avoid potential long-term problems.

7. What are the repair options for fixing OBDII code P0499 in a Hyundai?

- Repair options for fixing OBDII code P0499 in a Hyundai may include replacing the vent valve, repairing or replacing damaged wiring, or resetting the PCM after addressing any underlying issues.

8. How much does it cost to fix OBDII code P0499 in a Hyundai?

- The cost to fix OBDII code P0499 in a Hyundai can vary depending on the specific cause of the issue, but it may range from around $100 to $300 for parts and labor.

9. Can OBDII code P0499 in a Hyundai be fixed at home?

- Depending on your level of automotive experience and access to tools, fixing OBDII code P0499 in a Hyundai may be possible at home by following repair guides or consulting with a professional for guidance.

10. How can I prevent OBDII code P0499 from occurring in my Hyundai in the future?

- To prevent OBDII code P0499 from occurring in your Hyundai in the future, it is essential to perform regular maintenance checks on the vehicle's emission system, including inspecting the vent valve and related components for any signs of wear or damage.