OBD
P067F
Cylinder 6 Glow Plug Control Circuit High
What it means
P067F means Cylinder 6 Glow Plug Control Circuit High.
Check these first
- A short to power in the cylinder 6 control wire
- A failed glow plug in cylinder 6
- A corroded control circuit connector
- A faulty glow plug control module
- A chafed harness touching voltage
What to do next
- Watch the cylinder 6 control voltage live
- Trace the wire for a short to voltage
- Inspect the harness for chafing
- Test the glow plug
- Replace the control module if voltage stays high
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.