What does code P25EE mean?

Q: What does code P25EE mean?

Vacuum Pump Control Circuit B / Open. P25EE indicates that the powertrain control module (PCM) has detected an open circuit on the control side of the vacuum pump's 'B' circuit, which is often the secondary or redundant control path. The PCM commands the pump on and monitors the circuit for expected voltage or current feedback; when the feedback is missing or out of range, it flags the circuit as open.

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25EE

P25EEVacuum Pump Control Circuit B / Open

P25EE indicates that the powertrain control module (PCM) has detected an open circuit on the control side of the vacuum pump's 'B' circuit, which is often the secondary or redundant control path. The PCM commands the pump on and monitors the circuit for expected voltage or current feedback; when the feedback is missing or out of range, it flags the circuit as open.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.