What does code P2470 mean?

DTC codes / P24xx · Auxiliary emission controls / P2470

P2470Exhaust Gas Temperature Sensor Circuit Intermittent Bank 1 Sensor 3

P2470 means the engine control module (ECM) has detected an intermittent fault in the exhaust gas temperature (EGT) sensor circuit for bank 1 sensor 3, which is typically the sensor after the diesel particulate filter (DPF) on a V6 or V8 engine. The ECM sees the sensor signal drop out or jump erratically for brief periods, rather than failing completely, so the circuit works some of the time and fails intermittently.

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.