What does code P2D06 mean?

Q: What does code P2D06 mean?

Motor Electronics Coolant Pump B Overspeed/Air in System. P2D06 indicates that the motor electronics coolant pump B, which is an electric auxiliary pump used to circulate coolant through the hybrid or electric drive system, is reporting an overspeed condition or the control module has detected air in the coolant system. The computer compares the pump's commanded speed to its actual feedback signal and sets this code when the pump runs faster than expected or when air pockets cause erratic pump operation.

DTC codes / P2Dxx · Hybrid propulsion / P2D06

P2D06Motor Electronics Coolant Pump B Overspeed/Air in System

P2D06 indicates that the motor electronics coolant pump B, which is an electric auxiliary pump used to circulate coolant through the hybrid or electric drive system, is reporting an overspeed condition or the control module has detected air in the coolant system. The computer compares the pump's commanded speed to its actual feedback signal and sets this code when the pump runs faster than expected or when air pockets cause erratic pump operation.

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.