What does code P27A6 mean?

Q: What does code P27A6 mean?

Electric/Auxiliary Transmission Fluid Pump B Stuck On. P27A6 indicates that the transmission control module has detected the electric auxiliary transmission fluid pump circuit B is stuck in the on state, meaning the pump continues to run or is commanded on when it should be off. The computer monitors the pump's electrical circuit and recognizes an unexpected continuous current flow or lack of expected voltage drop when the pump should be deactivated.

DTC codes / P27xx · Transmission / P27A6

P27A6Electric/Auxiliary Transmission Fluid Pump B Stuck On

P27A6 indicates that the transmission control module has detected the electric auxiliary transmission fluid pump circuit B is stuck in the on state, meaning the pump continues to run or is commanded on when it should be off. The computer monitors the pump's electrical circuit and recognizes an unexpected continuous current flow or lack of expected voltage drop when the pump should be deactivated.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaTransmission

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