AutoCodes – Chevrolet – P0498 2015 Chevrolet Silverado

P0498 2015 Chevrolet Silverado Code - Evaporative Emission System Vent Valve Control Circuit Low

Quick Answer

The Evaporative Emission (EVAP) Vent Solenoid Valve is located on the EVAP canister and is used to seal the canister vent. Common causes include Faulty Evaporative Emission Vent Solenoid Valve, Evaporative Emission Vent Solenoid Valve harness is open or shorted, Evaporative Emission Vent Solenoid Valve electrical circuit poor 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: P0498 2015 Chevrolet Silverado indicates Evaporative Emission System Vent Valve Control Circuit Low.
Common causes: Common causes include Faulty Evaporative Emission Vent Solenoid Valve, Evaporative Emission Vent Solenoid Valve harness is open or shorted, Evaporative Emission Vent Solenoid Valve electrical circuit poor 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.

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Code Popularity 474

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 Jun 27, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P0498 2015 Chevrolet Silverado Description

The Evaporative Emission (EVAP) Vent Solenoid Valve is located on the EVAP canister and is used to seal the canister vent. The Evaporative Emission Vent Solenoid Valve responds to signals from the Engine Control Module (ECM). Battery voltage is supplied to the EVAP vent solenoid valve through a fuse. The ECM grounds the EVAP Vent Solenoid Valve control circuit through an internal switch called a driver. A plunger will then move to seal the canister vent. The ability to seal the vent is necessary for the on board diagnosis of other evaporative emission control system components. The ECM monitors the status of the driver. A scan tool will display the commanded state of the EVAP Vent Solenoid Valve as Not Venting (On) or Venting (Off). The Diagnostic Trouble Code (DTC) will be set when the ECM detects the EVAP vent solenoid valve control circuit is shorted to the ground within 0.25 s.

OBDII Code P0498 2015 Chevrolet Silverado - Evaporative Emission System Vent Valve Control Circuit Low - AutoCodes.com — P0498 2015 Chevrolet Silverado Code - Evaporative Emission System Vent Valve Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC P0498 2015 Chevrolet Silverado?

Faulty Evaporative Emission Vent Solenoid Valve
Evaporative Emission Vent Solenoid Valve harness is open or shorted
Evaporative Emission Vent Solenoid Valve electrical circuit poor connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0498 2015 Chevrolet Silverado?

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 does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0498 2015 Chevrolet Silverado 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.

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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 P0498 2015 Chevrolet Silverado Code

What does OBDII code P0498 mean on a 2015 Chevrolet Silverado?

Code P0498 indicates a problem with the Evaporative Emission System Vent Valve Control Circuit, specifically a low voltage condition.

What are the common symptoms of code P0498?

Symptoms may include the check engine light turning on, difficulty refueling, or noticeable fuel odors near the vehicle.

What causes code P0498 on a 2015 Chevrolet Silverado?

Common causes include a faulty vent valve, damaged wiring or connectors, a short circuit, or issues with the powertrain control module (PCM).

Can a faulty vent valve trigger code P0498?

Yes, a malfunctioning vent valve can cause the circuit to operate improperly and result in the P0498 code.

How can I diagnose code P0498 on my Silverado?

Start by inspecting the vent valve, wiring, and connectors for damage or corrosion. Use a multimeter to test for continuity and voltage in the circuit.

Is it safe to drive with code P0498?

While the vehicle may operate normally, driving with this code can lead to increased emissions and fuel odor issues. Prompt repair is recommended.

How is code P0498 fixed on a 2015 Chevrolet Silverado?

Repairs may include replacing the vent valve, repairing or replacing damaged wiring, or cleaning corroded connectors.

Does code P0498 affect fuel economy?

This code may not directly impact fuel economy but can lead to fuel vapor leaks, which could slightly affect efficiency over time.

What tools are needed to fix code P0498?

You may need an OBDII scanner, a multimeter for testing electrical circuits, and basic tools for replacing components.

Can a bad PCM cause code P0498?

While rare, a malfunctioning PCM could send incorrect signals to the vent valve, triggering the code. This should be checked last after inspecting other components.