What does code P27BF mean?

Q: What does code P27BF mean?

Pressure Control Solenoid N Control Circuit Low. P27BF indicates that the transmission control module (TCM) has detected a low-voltage condition on the control circuit for pressure control solenoid N, which is one of several shift and line pressure solenoids inside the transmission. The TCM commands a specific current to the solenoid and monitors the return circuit; when the voltage on that circuit falls below the expected threshold, the code is stored and the transmission may enter a limp mode.

DTC codes / P27xx · Transmission / P27BF

P27BFPressure Control Solenoid N Control Circuit Low

P27BF indicates that the transmission control module (TCM) has detected a low-voltage condition on the control circuit for pressure control solenoid N, which is one of several shift and line pressure solenoids inside the transmission. The TCM commands a specific current to the solenoid and monitors the return circuit; when the voltage on that circuit falls below the expected threshold, the code is stored and the transmission may enter a limp mode.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

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.