What does code P2699 mean?

Q: What does code P2699 mean?

Exhaust Aftertreatment Fuel Injector A Circuit Low. P2699 indicates that the powertrain control module (PCM) has detected a low-voltage condition on the electrical circuit for the exhaust aftertreatment fuel injector, which is used to raise exhaust temperature for diesel particulate filter regeneration. The PCM monitors the injector control circuit and sets this code when the voltage on the control wire falls below the expected threshold, indicating a short to ground, an open circuit, or a faulty injector.

DTC codes / P26xx · Computer and output circuits / P2699

P2699Exhaust Aftertreatment Fuel Injector A Circuit Low

P2699 indicates that the powertrain control module (PCM) has detected a low-voltage condition on the electrical circuit for the exhaust aftertreatment fuel injector, which is used to raise exhaust temperature for diesel particulate filter regeneration. The PCM monitors the injector control circuit and sets this code when the voltage on the control wire falls below the expected threshold, indicating a short to ground, an open circuit, or a faulty injector.

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.