P3479 — Cylinder 10 Exhaust Valve Control Circuit Low

What Does P3479 Mean?

P3479 is a diagnostic trouble code indicating: Cylinder 10 Exhaust Valve Control Circuit Low. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P3479

⚠️ Check Engine Light (MIL) illuminated
⚠️ Cylinder 10 Exhaust Valve reading at zero or minimum value
⚠️ Related system not functioning or in fail-safe mode
⚠️ Reduced engine performance

Common Causes

🔍 Open or broken wire in Cylinder 10 Exhaust Valve circuit
🔍 Poor ground connection at Cylinder 10 Exhaust Valve
🔍 Faulty Cylinder 10 Exhaust Valve with no output signal
🔍 Disconnected or loose Cylinder 10 Exhaust Valve connector
🔍 Blown fuse in related circuit

Frequently Asked Questions

What does P3479 mean?

P3479 indicates: Cylinder 10 Exhaust Valve Control Circuit Low. The vehicle's computer has detected that the Cylinder 10 Exhaust Valve is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P3479?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P3479 for extended periods may cause additional problems.

How much does it cost to fix P3479?

Repair costs for P3479 typically range from $20 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Repair broken wire or restore ground in Cylinder 10 Exhaust Valve circuit
🔧 Clean and secure Cylinder 10 Exhaust Valve connector and ground points
🔧 Replace failed Cylinder 10 Exhaust Valve

1
Find your vehicle above
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P3479: Cylinder 10 Exhaust Valve Control Circuit Low