What does code P24C2 mean?

DTC codes / P24xx · Auxiliary emission controls / P24C2

P24C2Exhaust Gas Temperature Measurement System Multiple Sensor Correlation Bank 1

P24C2 indicates that the engine control module has detected an implausible correlation between multiple exhaust gas temperature sensors on bank 1, meaning the readings from at least two sensors do not agree within an expected range under the current operating conditions. The computer compares these sensor signals to a model of expected exhaust temperature behavior and flags the code when the deviation exceeds 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.