What does code P0E3B mean?

Q: What does code P0E3B mean?

Hybrid/EV Battery Coolant Pump Overspeed. P0E3B indicates that the hybrid or electric vehicle battery coolant pump is spinning faster than the control module expects for the commanded duty cycle. The computer detects this by comparing the pump's reported speed signal against the target speed and flagging an overspeed condition when the actual speed exceeds the expected value by a calibrated threshold.

DTC codes / P0Exx · Hybrid propulsion / P0E3B

P0E3BHybrid/EV Battery Coolant Pump Overspeed

P0E3B indicates that the hybrid or electric vehicle battery coolant pump is spinning faster than the control module expects for the commanded duty cycle. The computer detects this by comparing the pump's reported speed signal against the target speed and flagging an overspeed condition when the actual speed exceeds the expected value by a calibrated threshold.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaHybrid propulsion

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