P2491

Exhaust gas recirculation (EGR) cooler bypass valve, bank 2 – control circuit high

DTC P2491, sometimes indicated as P249100 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the auxiliary emissions system causing exhaust gas recirculation (egr) cooler bypass valve, bank 2 – control circuit high.

  • P2491: Exhaust gas recirculation (EGR) cooler bypass valve, bank 2 – control circuit high
  • P2491 00: Exhaust gas recirculation (EGR) cooler bypass valve, bank 2 - control circuit high

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