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DTC codes / P28xx · Transmission / P288E
P288E indicates that the transmission control module (TCM) has detected excessive current or temperature in the driver circuit for the shift fork 'A' actuator, which is responsible for moving the shift fork to engage or disengage gears in an automated manual or dual-clutch transmission. The TCM monitors the actuator's electrical current draw and internal temperature, and when either exceeds a calibrated threshold, it sets this code to protect the circuit and mechanical components from damage.
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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