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DTC codes / P27xx · Transmission / P2768
P2768 means the transmission control module (TCM) has detected an intermittent fault in the electrical circuit for the input/turbine speed sensor 'B', which reports the rotational speed of the transmission input shaft. The TCM sets this code when the sensor signal drops out, spikes, or becomes erratic for brief periods, rather than failing completely.
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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