What does code P2488 mean?

DTC codes / P24xx · Auxiliary emission controls / P2488

P2488Exhaust Gas Temperature Sensor Circuit Range or Performance Bank 2 Sensor 5

P2488 indicates that the powertrain control module (PCM) has detected an out-of-range or performance fault in the exhaust gas temperature (EGT) sensor circuit for bank 2 sensor 5. The PCM monitors the sensor's voltage or resistance and flags the code when the signal falls outside the expected range for the current operating conditions, or when the sensor's response does not match the predicted temperature profile.

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.