OBD Guide
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P0445

EVAP System Purge Control Valve A Circuit Shorted

P0445 is an OBD-II diagnostic trouble code meaning: EVAP System Purge Control Valve A Circuit Shorted. Common causes: short circuit inside the purge valve solenoid, valve wiring shorted to ground or power. Estimated repair cost: $6–39.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$6–39 (est.)

Symptoms

  • Check Engine light is on
  • The smell of fuel coming from under the hood or near the car
  • Unstable idle
  • Unstable fuel mixture due to uncontrolled release of vapors
  • Increased fuel consumption
  • EVAP system leak test fails

Causes

  • Short circuit inside the purge valve solenoid
  • Valve wiring shorted to ground or power
  • Damage to wire insulation in the harness
  • Moisture entering the valve connector
  • Mechanical damage to the valve (shock, overheating)
  • ECU malfunction (control output stage)

How to Fix

  1. Read all error codes with scanner
  2. Locate EVAP purge valve A and inspect its wiring and connector
  3. Disconnect the valve connector and measure the solenoid resistance (normal: 15–30 ohms; much less - shorted)
  4. Check the wiring from the valve to the ECU for short to ground
  5. Check the presence of supply voltage at the valve connector
  6. Replace purge valve if internal short is confirmed
  7. Eliminate wiring damage due to external short circuit
  8. Reset codes and perform EVAP test with scanner

Related codes

P0440P0441P0442P0443P0444P0446P0447P0448P0449P0455P0456

Error P0445 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0445 code mean?

P0445 is an OBD-II diagnostic trouble code that indicates: EVAP System Purge Control Valve A Circuit Shorted

What causes a P0445 error code?

The most common causes of P0445 include: Short circuit inside the purge valve solenoid; Valve wiring shorted to ground or power; Damage to wire insulation in the harness; Moisture entering the valve connector.

How do I fix a P0445 diagnostic trouble code?

To fix P0445: Read all error codes with scanner. Locate EVAP purge valve A and inspect its wiring and connector. Disconnect the valve connector and measure the solenoid resistance (normal: 15–30 ohms; much less - shorted). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0445?

Do not drive — repair immediately

How much does it cost to fix P0445?

The estimated repair cost for P0445 is $6–39. Actual cost depends on your vehicle, location, and labor rates.

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