P0443

Low Severity

EVAP Purge Control Valve Circuit

EVAP System

What Does P0443 Mean?

Electrical fault in the EVAP purge valve circuit.

Common Fix

Replace purge valve

Estimated Cost (DIY)

$15 - $50

Symptoms

  • ⚠️Check engine light
  • ⚠️No driveability symptoms

Related Symptoms

Check engine light on

Common Causes

Failed purge valvelikely
Wiring issuepossible

How to Diagnose P0443

  1. 1Check purge valve connector
  2. 2Test valve resistance
  3. 3Replace valve

OEM Diagnostic Flowchart

Scroll to load technician if/then branches.

Read live data and freeze frame for P0443 to pinpoint the cause before buying parts.

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Related Resources

Repair guides, symptom pages, and wiring diagrams related to P0443.

OEM Manual Evidence

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2013 GMC Truck Yukon XL Denali AWD V8-6.2L A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL Denali AWD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car...

2013 GMC Truck Yukon XL Denali 2WD V8-6.2L A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL Denali 2WD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car...

2013 GMC Truck Yukon XL 4WD V8-6.0L A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 4WD V8-6.0L Service Manual | Operation CHARM Operation CHARM : Car repair...

2013 GMC Truck Yukon XL 4WD V8-5.3L A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 4WD V8-5.3L Service Manual | Operation CHARM Operation CHARM : Car repair...

Related Symptoms

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Check engine light onSymptom Hub

A check-engine light is a graph entry point into code pages, symptom-specific diagnosis, and the exact repair categories most often associated with those failures.

Exact Vehicle Hubs

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2013 Gmc Truck Yukon Xl 4wd V8 5.3l Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P0443.

2013 Gmc Truck Yukon Xl 4wd V8 6.0l Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P0443.

2013 Gmc Truck Yukon Xl Denali 2wd V8 6.2l Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P0443.

2013 Gmc Truck Yukon Xl Denali Awd V8 6.2l Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P0443.

Related Codes

P0441: EVAP System Incorrect Purge FlowRelated

The EVAP purge flow is not within expected range.

P0444: EVAP Purge Control Valve Circuit OpenRelated

Open circuit in the purge valve wiring or the valve solenoid.

P0445: EVAP Purge Control Valve Circuit ShortedRelated

Short circuit in the purge valve.

Frequently Asked Questions

Where is the purge valve?
Usually on or near the intake manifold, connected to a vacuum hose and the charcoal canister.
Can I test the purge valve?
Yes — apply 12V directly to the valve. You should hear it click and be able to blow through it when energized.

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