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DTC codes / P28xx · Transmission / P288F
P288F indicates that the transmission control module (TCM) has detected excessive current or temperature in the driver circuit for the shift fork 'B' actuator, which is part of an automated manual or dual-clutch transmission. The computer monitors the actuator's electrical driver and flags this code when the current draw or driver temperature exceeds safe limits, often due to a short, binding actuator, or a failing driver circuit.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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