P0447
Low SeverityEVAP Vent Control Circuit Open
EVAP System
P0447 — Instant Answer
EVAP Vent Control Circuit Open
Severity: LOW SEVERITY
Meaning: Open circuit in the vent valve.
Safe to drive? Usually yes with caution, but confirm root cause before long trips.
Estimated repair cost: $20 - $60
Most common causes:
- 1. Open vent valve coil (35-45% of cases)
- 2. Disconnected connector (10-25% of cases)
Common Causes
How to Diagnose P0447
- 1Check connector
- 2Measure resistance
- 3Replace valve
OEM Procedures for P0447
P0447 affects the Charcoal Canister. Found 2 OEM service manual procedures.
Charcoal Canister - Replacement (ES300)
Charcoal Canister - Replacement (ES300)
Charcoal Canister - Replacement (ES300)
Charcoal Canister - Replacement (ES300)
Charcoal Canister - Replacement (ES300)
Charcoal Canister - Replacement (ES300)
Charcoal Canister - Replacement (ES300)
Charcoal Canister - Replacement (ES300)
OEM Diagnostic Flowchart
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Read live data and freeze frame for P0447 to pinpoint the cause before buying parts.
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DIYers working on ABS/airbag systems
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OBD2 scanner
Read codes and freeze-frame data before you guess at the fault.
Most diagnostic jobs start with a scan tool and a verified code path.
Shop on Amazon →Battery tester
Check cranking and charging health before replacing expensive parts.
A weak battery can mimic alternator or starter problems.
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A meter is the cheapest way to rule out a bad circuit fast.
Shop on Amazon →Related Resources
Repair guides, symptom pages, and wiring diagrams related to P0447.
OEM Manual Evidence
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A L L Diagnostic Trouble Codes ( DTC ) — 2013 Infiniti G37 Convertible V6-3.7L (VQ37VHR) Service Manual ~ LEMON Manuals LEMON Manuals: Repa...
Related Symptoms
Browse →Exact Vehicle Hubs
Browse →Open the exact vehicle hub grounded by OEM manual evidence related to P0447.
Open the exact vehicle hub grounded by OEM manual evidence related to P0447.
Open the exact vehicle hub grounded by OEM manual evidence related to P0447.
Open the exact vehicle hub grounded by OEM manual evidence related to P0447.
Related Codes
Fault in the EVAP vent valve circuit. The vent valve allows the EVAP system to breathe.
Short circuit in the vent valve.
General EVAP system fault — the system that captures fuel vapors is not working properly.
Frequently Asked Questions
- Is this the same as P0446?
- P0447 specifies an open circuit fault, while P0446 is a general circuit issue.
- Can I drive with P0447?
- Yes — no driveability effect.
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Author & Review
Written by AllOEMManuals Editorial Team. Reviewed by ASE-certified technicians and updated with factory-reference checks for fitment-sensitive steps.
This guide was drafted with AI assistance and reviewed for accuracy by a human editor.
Last updated: 2026-05-07