P269F
Exhaust Aftertreatment Glow Plug Circuit / Open
The aftertreatment glow plug element itself is open. No current flows even with the relay closed.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
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.
- Glow element burnt out from age or HC overloadCommon
- Corroded terminal at the plug bodyPossible
Parts involved
- Aftertreatment Glow Plug
P269F 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.