P0680
Cylinder 10 Glow Plug Circuit Open
The glow plug circuit on cylinder 10 is open - usually a broken connection or burnt-out heater element.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: easy
Symptoms
- Glow plug warning light on (often orange coil symbol)
- Hard cold start or no start in cold weather
- White smoke from exhaust during warm-up
Common causes
Ordered by how often each turns out to be the cause.
- Plug element burnt outCommon
- Pin pushed back out of connector bodyLess likely
- Cracked solder joint inside the module or sensorLess likely
Parts involved
- Glow Plug Cyl 10
P0680 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.