What does code P2B6B mean?

Q: What does code P2B6B mean?

Coolant Pump D Control Module Overtemperature. P2B6B indicates that the control module for coolant pump D has detected an internal overtemperature condition, meaning the electronics driving that pump are running hotter than the design limit. The module sets this code when its internal temperature sensor exceeds a calibrated threshold, typically to protect the pump driver from thermal damage.

DTC codes / P2Bxx · Hybrid propulsion / P2B6B

P2B6BCoolant Pump D Control Module Overtemperature

P2B6B indicates that the control module for coolant pump D has detected an internal overtemperature condition, meaning the electronics driving that pump are running hotter than the design limit. The module sets this code when its internal temperature sensor exceeds a calibrated threshold, typically to protect the pump driver from thermal damage.

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.