What does code P2494 mean?

Q: What does code P2494 mean?

EGR Cooler Bypass Position Sensor Circuit Low Bank 1. P2494 means the engine computer has detected a low-voltage signal from the position sensor that monitors the EGR cooler bypass valve on bank 1. The sensor circuit is reporting a voltage below the expected range, so the computer cannot trust the bypass valve's actual position and logs this fault.

DTC codes / P24xx · Auxiliary emission controls / P2494

P2494EGR Cooler Bypass Position Sensor Circuit Low Bank 1

P2494 means the engine computer has detected a low-voltage signal from the position sensor that monitors the EGR cooler bypass valve on bank 1. The sensor circuit is reporting a voltage below the expected range, so the computer cannot trust the bypass valve's actual position and logs this fault.

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.