AutoCodesToyota – P0455 2006 Toyota Camry

P0455 2006 Toyota Camry Code - EVAP System Gross Leak Detected

Quick Answer

This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close. 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
P0455 2006 Toyota Camry indicates EVAP System Gross Leak Detected.
Common causes
Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 13,056
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0455 2006 Toyota Camry Description

This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. If pressure does not increase, the Engine Control Module (ECM) will check for leaks in the line between the fuel tank and EVAP canister purge volume control solenoid valve under the following vacuum test condition.
The vacuum cut valve bypass valve is opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP canister vent control valve will then be closed to shut the EVAP purge line off. The EVAP canister purge volume control solenoid valve is opened to depressurize the EVAP purge line using intake manifold vacuum. After this depressurization is implemented, the EVAP canister purge volume control solenoid valve will be closed.
5 hours* after the ignition switch is turned OFF, the leak detection pump creates negative pressure (vacuum) in the EVAP system. The ECM monitors for leaks and actuator malfunctions based on the EVAP pressure.
OBDII Code P0455 2006 Toyota Camry - EVAP System Gross Leak Detected - AutoCodes.com
P0455 2006 Toyota Camry Code - EVAP System Gross Leak Detected

What are the Possible Causes of the DTC P0455 2006 Toyota Camry?

  • Missing or loose fuel cap
  • Incorrect fuel filler cap used
  • Fuel filler cap remains open or fails to close
  • Foreign matter caught in fuel filler cap
  • EVAP canister or fuel tank leaks
  • EVAP system hose leaking
  • Fuel tank leaking

How to Fix the DTC P0455 2006 Toyota Camry?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0455 2006 Toyota Camry 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 P0455 2006 Toyota Camry code?

Need more information on how to fix the P0455 2006 Toyota Camry code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0455 2006 Toyota Camry 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 P0455 2006 Toyota Camry Code

1. What does the P0455 code mean on a 2006 Toyota Camry?

The P0455 code indicates a "gross leak" in the EVAP (Evaporative Emission Control) system, meaning the system has detected a large leak or a disconnection.

2. What are the common symptoms of code P0455 in a 2006 Toyota Camry?

Common symptoms include the check engine light turning on, a potential fuel smell near the vehicle, and, in rare cases, slightly reduced fuel efficiency.

3. What causes the P0455 code on a 2006 Toyota Camry?

The most common causes are a loose or damaged gas cap, cracked or disconnected EVAP hoses, a faulty purge valve, or a leaking EVAP canister.

4. How can I fix the P0455 code on my 2006 Toyota Camry?

Start by checking and tightening the gas cap. If the code persists, inspect EVAP hoses and components for damage or leaks, and replace any faulty parts.

5. Will a loose gas cap trigger the P0455 code?

Yes, a loose or missing gas cap is one of the most common reasons for the P0455 code since it disrupts the sealed EVAP system.

6. Can I drive my 2006 Toyota Camry with the P0455 code?

Yes, the car is usually safe to drive with this code, but it’s important to fix the issue promptly to avoid worsening emissions or potential damage to the EVAP system.

7. How is the P0455 code diagnosed on a 2006 Toyota Camry?

A mechanic will use an OBDII scanner to confirm the code, inspect the gas cap, check EVAP system hoses for leaks, and may perform a smoke test to locate leaks.

8. How much does it cost to repair a P0455 code on a 2006 Toyota Camry?

The cost varies depending on the issue. Replacing a gas cap might cost around $20, while repairing hoses or the EVAP canister could range from $100 to $600, including labor.

9. Can a faulty EVAP canister cause the P0455 code?

Yes, a damaged or leaking EVAP canister can cause the P0455 code because it disrupts the vapor recovery system.

10. How long does it take to fix the P0455 code on a 2006 Toyota Camry?

The time required depends on the cause. A gas cap fix may take minutes, while diagnosing and repairing leaks or replacing components could take a few hours.

Discuss the causes and fixes for P0455 2006 Toyota Camry OBDII Code

Code P0455 2006 Toyota Camry comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play