OBD
P06C6
Cylinder 2 Glow Plug Incorrect
What it means
P06C6 means Cylinder 2 Glow Plug Incorrect.
Check these first
- A wrong glow plug in cylinder 2
- A loose or cross threaded glow plug
- A corroded cylinder 2 connector
- An incorrect part number
- A failing control module
What to do next
- Verify the cylinder 2 glow plug part number
- Check the glow plug is seated and tight
- Inspect the connector and terminals
- Compare against the correct spec
- Replace the glow plug
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.