What does code P272B mean?

DTC codes / P27xx · Transmission / P272B

P272BTransmission Range Select Motor Control Circuit Current Too High

P272B indicates that the transmission control module (TCM) has detected excessive current flow in the electrical circuit that operates the transmission range select motor, which is the actuator responsible for moving the shift mechanism between Park, Reverse, Neutral, and Drive. The TCM monitors this circuit and sets the code when current exceeds a calibrated threshold, typically due to a short to ground, a faulty motor, or damaged wiring.

SystemPowertrain

Code typeGeneric (all makes)

SeverityHigh

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.