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P0456

Overview

Code

P0456

Code Type

P

Code Class

P0

System

Emissions

Severity Level

Low

Emissions Related

true

Drivability Impact

None

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0456 indicates a small leak in the EVAP system

Symptoms

Check Engine Light

Overview applies to this diagnostic code.

Affected Systems

On This Page

  • Code Definition

  • Symptoms

  • Affected Systems

  • Possible Causes

  • Diagnostic Steps

  • Drive Safety Notes​

More Resources

EVAP system integrity

Possible Causes

Cracked EVAP hose

Diagnostic Steps

1 Smoke test EVAP system 2 Inspect hoses

Drive Safety Notes

No drivability impact

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