What does code P2479 mean?

Q: What does code P2479 mean?

Exhaust Gas Temperature Out of Range Bank 1 Sensor 2. P2479 indicates that the engine control module (ECM) has detected an exhaust gas temperature (EGT) reading from bank 1 sensor 2 that is outside the expected range for the current operating conditions. This sensor monitors the temperature after the catalytic converter on the bank that contains cylinder number one, and the ECM sets the code when the signal voltage or calculated temperature falls below or rises above a calibrated threshold for a set time.

DTC codes / P24xx · Auxiliary emission controls / P2479

P2479Exhaust Gas Temperature Out of Range Bank 1 Sensor 2

P2479 indicates that the engine control module (ECM) has detected an exhaust gas temperature (EGT) reading from bank 1 sensor 2 that is outside the expected range for the current operating conditions. This sensor monitors the temperature after the catalytic converter on the bank that contains cylinder number one, and the ECM sets the code when the signal voltage or calculated temperature falls below or rises above a calibrated threshold for a set time.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaAuxiliary emission controls

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