What does code P2DFB mean?

Q: What does code P2DFB mean?

Coolant Pump E Control Module Overtemperature. P2DFB indicates that the control module for the engine coolant pump 'E' has detected an internal overtemperature condition, meaning the electronics inside the pump module are running hotter than their safe design limit. The pump may still be commanded to run, but the module is protecting itself and can reduce or shut down pump operation until temperatures return to normal.

DTC codes / P2Dxx · Hybrid propulsion / P2DFB

P2DFBCoolant Pump E Control Module Overtemperature

P2DFB indicates that the control module for the engine coolant pump 'E' has detected an internal overtemperature condition, meaning the electronics inside the pump module are running hotter than their safe design limit. The pump may still be commanded to run, but the module is protecting itself and can reduce or shut down pump operation until temperatures return to normal.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

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.