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DTC codes / P28xx · Transmission / P287D
P287D indicates that the transmission control module (TCM) has detected the electric auxiliary transmission fluid pump motor producing torque outside its expected range during operation. The TCM monitors pump motor current and speed to calculate torque, and it sets this code when the calculated torque falls below or exceeds the calibrated limits for the commanded duty cycle.
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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