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P0448

Overview

Code

P0448

Code Type

P

Code Class

P0

System

Engine, Emissions

Severity Level

Low

Emissions Related

true

Drivability Impact

None

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0448 indicates a short circuit in the EVAP vent control valve

Symptoms

Check Engine Light illuminated

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 vent control

Possible Causes

Shorted vent valve wiring; Faulty vent valve

Diagnostic Steps

1 Inspect wiring harness; 2 Test vent valve resistance; 3 Replace valve if necessary

Drive Safety Notes

EVAP system may not vent properly

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