What does code P2472 mean?

Q: What does code P2472 mean?

Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 3. P2472 means the engine control module (ECM) has detected an abnormally low voltage on the exhaust gas temperature (EGT) sensor circuit for bank 1 sensor 3, which is typically the sensor located after the diesel particulate filter (DPF) or catalytic converter on that bank. The ECM expects the sensor signal to rise as exhaust temperature increases, but the voltage stays below the calibrated minimum, indicating a short to ground, an open circuit, or a failed sensor.

DTC codes / P24xx · Auxiliary emission controls / P2472

P2472Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 3

P2472 means the engine control module (ECM) has detected an abnormally low voltage on the exhaust gas temperature (EGT) sensor circuit for bank 1 sensor 3, which is typically the sensor located after the diesel particulate filter (DPF) or catalytic converter on that bank. The ECM expects the sensor signal to rise as exhaust temperature increases, but the voltage stays below the calibrated minimum, indicating a short to ground, an open circuit, or a failed sensor.

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.