The P0680: Cylinder 10 Glow Plug Circuit code refers to an issue in the glow plug circuit for cylinder 10. Glow plugs are essential for starting diesel engines, particularly in cold conditions. A fault in the glow plug circuit, wiring problems, or a malfunctioning glow plug could prevent the engine from starting properly.
P0680 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0680: Cylinder 10 Glow Plug Circuit |
| Is it serious? | Yes, as it can cause engine starting problems, especially in cold conditions. |
| Possible causes | – Faulty cylinder 10 glow plug circuit – Wiring issue – Faulty glow plug |
| How to diagnose? | – Test cylinder 10 glow plug circuit – Inspect wiring and connectors – Replace glow plug if necessary |
P0680 Meaning
The P0680 code indicates that the control module has detected a fault in the glow plug circuit for cylinder 10. This could result from a problem in the wiring or connectors, or it could be due to a faulty glow plug. The glow plug helps in preheating the air-fuel mixture for starting the engine, especially in colder weather.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for any additional related codes, particularly those affecting the glow plug system. | OBD-II Scanner |
| Test the Cylinder 10 Glow Plug Circuit for Voltage | Use a multimeter to measure the voltage in the glow plug control circuit for cylinder 10. Ensure it matches the manufacturer’s specifications. | Multimeter |
| Inspect Wiring and Connectors | Inspect the wiring and connectors leading to cylinder 10’s glow plug for signs of damage, corrosion, or loose connections that could cause circuit failure. | Flashlight, Multimeter |
| Test the Glow Plug for Cylinder 10 | Test the glow plug in cylinder 10 to ensure it is functioning correctly. If the glow plug is faulty, replace it. | Diagnostic Tool, Multimeter |
| Replace the Glow Plug if Necessary | If the glow plug for cylinder 10 is faulty or not heating correctly, replace it to restore proper starting performance, especially in cold weather. | Replacement Glow Plug, Tools |
| Clear the Code and Test | After repairs, clear the code using an OBD-II scanner and test the vehicle to ensure the cylinder 10 glow plug circuit is functioning correctly. | OBD-II Scanner, Vehicle Manual |
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I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko