OBD Codes List

Diagnostic reference · P06C0

P06C0

Cylinder 8 Glow Plug Circuit Range/Performance

System
Computer output circuits (P code)
Lamp
Check Engine Light
Category
Powertrain - Computer and Auxiliary Controls

What it means

P06C0 means Cylinder 8 Glow Plug Circuit Range/Performance.

Check these first

  • A weak glow plug in cylinder 8
  • A corroded cylinder 8 connector
  • An intermittent glow plug feed
  • A failing glow plug module
  • Poor fuel quality

What to do next

  1. Monitor cylinder 8 glow plug current
  2. Inspect the connector and wiring
  3. Test the glow plug
  4. Check the glow plug module
  5. Replace the glow plug or module
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.