OBD
P069D
Cylinder 10 Glow Plug Control Circuit High
What it means
P069D means Cylinder 10 Glow Plug Control Circuit High.
Check these first
- A short to voltage in the cylinder 10 control wire
- High resistance in the control circuit
- A failed glow plug in cylinder 10
- A corroded control connector
- A failed glow plug control module
What to do next
- Read the cylinder 10 control voltage live
- Check for a short to power
- Test the glow plug
- Inspect the harness and connector
- Replace the control module
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.