how to fix P0455 code in Toyota Corolla E210 (2019-2024)

Learn how to diagnose and fix P0455 code in Toyota Corolla E210 (2019-2024). Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure vehicle is parked on a level surface and engine is off.
• Disconnect the battery to prevent any electrical issues.

2. Inspect and Replace Gas Cap

• Sub-steps:
  • Remove the gas cap.
  • Inspect for cracks, worn seals, or foreign debris.
  • If damaged, replace with a new gas cap (ensure it matches OEM specifications).

3. Repair or Replace Damaged Components

• Sub-steps:
  • If any hoses or components are found to be damaged during the inspection, remove them using appropriate tools (socket set).
  • Replace with new OEM parts, ensuring all clamps are tightened securely to prevent leaks.

4. Test and Replace EVAP Valves

• Sub-steps:
  • Disconnect the electrical connectors from the EVAP purge valve and vent valve.
  • Use a multimeter to check resistance according to the vehicle’s specifications.
  • If either valve is faulty, remove it and install a new one, ensuring proper alignment and sealing.

5. Conduct Smoke Test (if applicable)

• Sub-steps:
  • Connect the smoke machine to the EVAP service port.
  • Activate the smoke machine to identify any leaks in the system.
  • Repair any identified leaks by replacing affected components or hoses.

6. Clear Codes and Reconnect Battery

• Sub-steps:
  • Reconnect the vehicle's battery.
  • Use the OBD-II scanner to clear the P0455 code.
  • Start the engine and allow it to idle, checking for any reappearance of the check engine light.