What does code P2B6A mean?

Q: What does code P2B6A mean?

Coolant Pump D Stuck/Stalled. P2B6A indicates that the powertrain control module has detected a stuck or stalled condition in the coolant pump circuit designated as 'D', which is typically an auxiliary or secondary electric pump used for charge air cooling, battery thermal management, or cabin heating. The computer monitors the pump's electrical current or feedback signal and sets this code when the pump fails to respond to commands or draws current outside the expected range for a specified period.

DTC codes / P2Bxx · Hybrid propulsion / P2B6A

P2B6ACoolant Pump D Stuck/Stalled

P2B6A indicates that the powertrain control module has detected a stuck or stalled condition in the coolant pump circuit designated as 'D', which is typically an auxiliary or secondary electric pump used for charge air cooling, battery thermal management, or cabin heating. The computer monitors the pump's electrical current or feedback signal and sets this code when the pump fails to respond to commands or draws current outside the expected range for a specified period.

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.