P0679 Volkswagen Code - Cylinder 9 Glow Plug Circuit Fault
Quick Answer
The glow plug system is used to assist in providing the heat required to begin combustion during cold engine temperatures. Common causes include Faulty cylinder #9 glow plug, Cylinder #9 glow plug harness is open or shorted, Cylinder #9 glow plug circuit poor electrical connection. 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
- P0679 Volkswagen indicates Cylinder 9 Glow Plug Circuit Fault.
- Common causes
- Common causes include Faulty cylinder #9 glow plug, Cylinder #9 glow plug harness is open or shorted, Cylinder #9 glow plug circuit poor electrical connection.
- 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.
Code P0679 Volkswagen Description
What are the Possible Causes of the DTC P0679 Volkswagen?
- Faulty cylinder #9 glow plug
- Cylinder #9 glow plug harness is open or shorted
- Cylinder #9 glow plug circuit poor electrical connection
- Faulty glow plug module
How to Fix the DTC P0679 Volkswagen?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0679 Volkswagen code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0679 Volkswagen Code
1. What are the common symptoms of OBDII code P0679 in a Volkswagen related to the Cylinder 9 Glow Plug Circuit Fault?
The common symptoms include hard starting, rough idling, misfires, and an illuminated check engine light.
2. What are the possible causes of the P0679 code in a Volkswagen indicating a Cylinder 9 Glow Plug Circuit Fault?
Possible causes can include a faulty glow plug, damaged wiring or connectors in the glow plug circuit, a defective glow plug relay, or a problem with the engine control module (ECM).
3. How can I diagnose the Cylinder 9 Glow Plug Circuit Fault in my Volkswagen when encountering the P0679 trouble code?
Diagnosis typically involves checking the glow plug and related components for proper functioning, inspecting the wiring and connectors for damage, and using a scan tool to monitor the glow plug circuit.
4. Can I continue driving my Volkswagen with the P0679 code indicating a Cylinder 9 Glow Plug Circuit Fault?
It is not recommended to continue driving with this fault as it can lead to poor engine performance and potential damage over time. It's best to address the issue promptly.
5. Is it possible to repair the Cylinder 9 Glow Plug Circuit Fault in my Volkswagen on my own?
While some DIY enthusiasts may attempt to address this issue, it is recommended to have a qualified mechanic diagnose and repair the problem to ensure proper resolution.
6. How much does it typically cost to repair the Cylinder 9 Glow Plug Circuit Fault related to the P0679 code in a Volkswagen?
The cost of repairs can vary depending on the exact cause of the fault, but it may involve replacing the faulty glow plug, repairing damaged wiring, or addressing issues with the glow plug relay. Costs can range from a few hundred to over a thousand dollars.
7. Can a Cylinder 9 Glow Plug Circuit Fault in a Volkswagen trigger other OBDII trouble codes?
Yes, a fault in the glow plug circuit can sometimes trigger related codes such as P0671 to P0684, which are specific to glow plug circuit issues in different cylinders.
8. How crucial is it to address the P0679 code indicating a Cylinder 9 Glow Plug Circuit Fault promptly in my Volkswagen?
Promptly addressing this fault is important to ensure proper starting, combustion, and overall engine performance. Ignoring the issue can lead to more severe problems over time.
9. Are there any preventive maintenance tips to avoid encountering the P0679 code related to the Cylinder 9 Glow Plug Circuit Fault in a Volkswagen?
Regularly inspecting the glow plug system, ensuring proper glow plug operation in cold weather, and addressing any starting or rough idling issues promptly can help prevent this fault.
10. Can extreme weather conditions or driving habits contribute to the occurrence of the P0679 code indicating a Cylinder 9 Glow Plug Circuit Fault in a Volkswagen?
Yes, cold weather, frequent short trips, or extended idling can put additional stress on the glow plug system, potentially leading to faults like the Cylinder 9 Glow Plug Circuit Fault indicated by the P0679 code.
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