What does code P269D mean?

Q: What does code P269D mean?

Exhaust Aftertreatment Glow Plug Control Circuit Low. P269D indicates that the powertrain control module has detected an abnormally low voltage or current on the control circuit for an exhaust aftertreatment glow plug, which is used to heat the exhaust system and reduce emissions during cold starts. The circuit is monitored for expected electrical behavior, and a low condition means the control wire is shorted to ground, open, or the glow plug itself has failed.

DTC codes / P26xx · Computer and output circuits / P269D

P269DExhaust Aftertreatment Glow Plug Control Circuit Low

P269D indicates that the powertrain control module has detected an abnormally low voltage or current on the control circuit for an exhaust aftertreatment glow plug, which is used to heat the exhaust system and reduce emissions during cold starts. The circuit is monitored for expected electrical behavior, and a low condition means the control wire is shorted to ground, open, or the glow plug itself has failed.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaComputer and output circuits

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.