P3479 Code - Cylinder 10 Exhaust Valve Control Circuit Low
Quick Answer
The diagnostic trouble code P3479 indicates an issue with the exhaust valve control circuit in cylinder 10 of the vehicle's engine. Common causes include Faulty wiring or connectors in the exhaust valve control circuit, Malfunctioning exhaust valve control solenoid, Defective engine control module (ECM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P3479 indicates Cylinder 10 Exhaust Valve Control Circuit Low.
- Common causes
- Common causes include Faulty wiring or connectors in the exhaust valve control circuit, Malfunctioning exhaust valve control solenoid, Defective engine control module (ECM).
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P3479 Description
The diagnostic trouble code P3479 indicates an issue with the exhaust valve control circuit in cylinder 10 of the vehicle's engine. In a modern engine, the exhaust valve control circuit is responsible for regulating the opening and closing of the exhaust valve in the specified cylinder. When the circuit is detected to be operating at a low voltage or below the manufacturer's specified threshold, the P3479 code is triggered. This can lead to improper functioning of the exhaust valve, impacting the engine's performance, fuel efficiency, and emissions output.
Common Causes of P3479
- Faulty wiring or connectors in the exhaust valve control circuit
- Malfunctioning exhaust valve control solenoid
- Defective engine control module (ECM)
- Mechanical issue with the exhaust valve
Symptoms of P3479
- Reduced engine performance
- Rough idling
- Misfires
- Increased fuel consumption
- Check Engine Light illuminated
How to Fix P3479
- Begin by conducting a thorough inspection of the exhaust valve control circuit, checking for any loose or damaged wiring or connectors.
- Test the exhaust valve control solenoid for proper operation and replace if necessary.
- Use a diagnostic scan tool to check for any stored trouble codes in the ECM and address them accordingly.
- Inspect the exhaust valve itself for any mechanical issues, such as sticking or damage, and repair or replace as needed.
- Clear the diagnostic trouble codes from the ECM and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P3479
The typical repair costs for addressing the P3479 code can vary depending on the specific cause of the issue and the vehicle's make and model. In general, the cost of parts for this repair can range from $100 to $300, with labor costs adding an additional $100 to $200. However, it's important to note that these are rough estimates, and actual costs may vary based on factors such as location, labor rates, and the extent of the repairs needed. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate.
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Code P3479 Information for Specific Makes
- P3479 Chrysler — Cylinder 10 Exhaust Valve Control Circuit Low
- P3479 Dodge — Cylinder 10 Exhaust Valve Control Circuit Low
- P3479 Jeep — Cylinder 10 Exhaust Valve Control Circuit Low
Frequently Asked Questions about P3479 Code
1. What does the OBDII code P3479 mean?
Code P3479 indicates a problem with the cylinder 10 exhaust valve control circuit, specifically a low voltage issue.
2. What are the common symptoms of code P3479?
Symptoms may include engine misfiring, reduced performance, rough idling, poor fuel efficiency, and the check engine light being illuminated.
3. What causes the P3479 code to appear?
Common causes include a faulty exhaust valve solenoid, damaged wiring or connectors in the control circuit, low oil pressure, or an issue with the engine control module (ECM).
4. How can I diagnose the P3479 code?
Start by inspecting the wiring and connectors for damage, test the exhaust valve solenoid for proper operation, and check the oil level and pressure to ensure adequate lubrication.
5. Can I still drive my vehicle with the P3479 code?
Driving with this code is not recommended, as it can lead to engine performance issues and potentially cause further damage to internal components.
6. How do I fix the P3479 code?
Repairs may involve replacing the faulty exhaust valve solenoid, repairing or replacing damaged wiring or connectors, or addressing low oil pressure issues.
7. Is the P3479 code related to low oil pressure?
Yes, low oil pressure can cause this code because the exhaust valve solenoid requires proper lubrication to function correctly.
8. How much does it cost to fix the P3479 code?
Repair costs vary depending on the root cause but typically range from $150 to $500 for parts and labor, depending on the vehicle and location.
9. Can a dirty oil filter trigger the P3479 code?
Yes, a clogged or dirty oil filter can restrict oil flow, potentially leading to low oil pressure and issues with the exhaust valve solenoid.
10. Will clearing the P3479 code solve the issue?
Clearing the code will remove the error temporarily, but the underlying issue must be fixed to prevent the code from returning.
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