Toyota Car Error Code P0455
EVAP Large Leak Detected
Severity
DIY Difficulty
Est. Cost
$0 - $150
Est. Time
30 min
What Does P0455 Mean?
Toyota car error P0455 means evap large leak detected. This is a moderate issue with a DIY difficulty of 2/5. Most repairs cost between $0 and $150.
Common Causes
Sensor malfunction
This is a common and usually minor cause of the P0455 error on Toyota cars.
Minor blockage
This is a common and usually minor cause of the P0455 error on Toyota cars.
Connection issue
This is a common and usually minor cause of the P0455 error on Toyota cars.
Step-by-Step Fix
Power cycle the appliance
Unplug your Toyota car for 60 seconds, then plug it back in. This clears temporary errors and resets the control board.
Check for obvious issues
Inspect your car for any visible problems such as loose connections, blockages, or unusual sounds. Many P0455 errors on Toyota units are caused by simple issues.
Run a diagnostic cycle
Many Toyota cars have a built-in diagnostic mode. Check your user manual for the specific key combination to enter diagnostics on your model.
Test related components
Based on the P0455 error meaning (EVAP Large Leak Detected), check the specific components involved. Use a multimeter to test for continuity if you are comfortable with electrical testing.
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