DTC codes / P27xx · Transmission / P2744
P2744 indicates that the transmission control module (TCM) has detected an intermittent fault in the signal circuit for transmission fluid temperature sensor 'B'. The circuit works correctly at times but drops out or produces erratic readings, so the TCM cannot trust the temperature data consistently.
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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