What does code P24A6 mean?

Q: What does code P24A6 mean?

EGR Cooler Bypass Control Stuck Open Bank 2. P24A6 indicates that the powertrain control module (PCM) has detected the exhaust gas recirculation (EGR) cooler bypass valve on bank 2 is stuck in the open position, meaning exhaust gas is continuously routed through the cooler when it should be bypassed. The PCM commands the bypass valve and monitors its position or the resulting temperature change, and it sets this code when the expected change does not occur within the calibrated time.

DTC codes / P24xx · Auxiliary emission controls / P24A6

P24A6EGR Cooler Bypass Control Stuck Open Bank 2

P24A6 indicates that the powertrain control module (PCM) has detected the exhaust gas recirculation (EGR) cooler bypass valve on bank 2 is stuck in the open position, meaning exhaust gas is continuously routed through the cooler when it should be bypassed. The PCM commands the bypass valve and monitors its position or the resulting temperature change, and it sets this code when the expected change does not occur within the calibrated 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.