OBD
P069A
Cylinder 9 Glow Plug Control Circuit Low
What it means
P069A means Cylinder 9 Glow Plug Control Circuit Low.
Check these first
- A failed glow plug in cylinder 9
- A short to ground in the cylinder 9 control wire
- A corroded control connector
- Low battery voltage
- A failed glow plug control module
What to do next
- Read the cylinder 9 control voltage
- Inspect the circuit for a short to ground
- Test the glow plug
- Check battery voltage and charging
- Replace the glow plug or module
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.