The P06CF: Cylinder 11 Glow Plug Incorrect refers to an issue where the incorrect glow plug has been installed in cylinder 11, or there is a problem with the glow plug or its wiring. This can lead to poor engine starting performance and affect overall engine efficiency, particularly in diesel engines.
P06CF – Quick Overview
Code | Information |
---|---|
Meaning | P06CF: Cylinder 11 Glow Plug Incorrect |
Is it serious? | Yes, as an incorrect or faulty glow plug can cause poor engine starting and performance, especially in cold weather for diesel engines. |
Possible causes | – Incorrect cylinder 11 glow plug installed – Faulty glow plug – Wiring issue |
How to diagnose? | – Check cylinder 11 glow plug for correctness – Inspect wiring and connectors – Replace glow plug if necessary |
P06CF Meaning
The P06CF code is triggered when the wrong glow plug is installed in cylinder 11, or the glow plug is malfunctioning. Diesel engines rely on specific glow plugs to ensure proper operation, especially during cold starts. An incorrect or faulty glow plug can cause engine starting issues and reduced performance.
Step-by-step diagnostic guide
Action | Description | Tools Needed |
---|---|---|
Check for Other Codes | Use an OBD-II scanner to check for additional codes related to cylinder 11 or the glow plug. These codes may provide further diagnostic insights. | OBD-II Scanner |
Check Glow Plug in Cylinder 11 | Inspect the glow plug in cylinder 11 and verify that it matches the manufacturer’s specifications. | Manufacturer’s Manual, Tools |
Inspect Wiring and Connectors | Inspect the wiring and connectors for cylinder 11’s glow plug for signs of damage, loose connections, or corrosion. | Flashlight, Multimeter |
Test the Glow Plug | Test the glow plug in cylinder 11 for proper functionality. Replace it if it is incorrect or faulty. | Multimeter, Glow Plug Tester |
Replace Faulty Components | If an incorrect or faulty glow plug is identified, replace it with the correct one and repair any damaged wiring if necessary. | Replacement Parts, Standard Tools |
Clear Code and Retest | After repairs, clear the code using an OBD-II scanner and take the vehicle for a test drive to confirm the issue is resolved. | OBD-II Scanner |
Recheck for Codes | After the test drive, re-scan the vehicle to ensure the P06CF code has not returned. | OBD-II Scanner |

OBD-II scanner Buyer’s Guide
- Scanner features explained
- Different types of scanners
- Scanners for coding/odometer/ECU/checks
- Best picks + discount codes

Hi, I am Juraj “Yuri” Lukacko. I got frustrated by unhelpful and scammy mechanics, so I decided to learn everything about car diagnostics myself. I test dozens of new car diagnostic tools every month along with learning new strategies to fix and customize cars. About Juraj Lukacko (Yuri)