P0445
Low SeverityEVAP Purge Control Valve Circuit Shorted
EVAP System
P0445 — Instant Answer
EVAP Purge Control Valve Circuit Shorted
Severity: LOW SEVERITY
Meaning: Short circuit in the purge valve.
Safe to drive? Usually yes with caution, but confirm root cause before long trips.
Estimated repair cost: $15 - $50
Most common causes:
- 1. Shorted purge valve coil (35-45% of cases)
- 2. Short in wiring (10-25% of cases)
Common Causes
How to Diagnose P0445
- 1Measure coil resistance
- 2Check wiring for shorts
- 3Replace valve
OEM Procedures for P0445
P0445 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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Repair guides, symptom pages, and wiring diagrams related to P0445.
Related Codes
Electrical fault in the EVAP purge valve circuit.
Open circuit in the purge valve wiring or the valve solenoid.
The EVAP purge flow is not within expected range.
Frequently Asked Questions
- Can a shorted purge valve damage the ECM?
- Unlikely but possible. The ECM has protection circuits, but a persistent short should be fixed promptly.
- How much is a purge valve?
- Typically $15-$50 for the part. Very easy DIY replacement.
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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