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DTC codes / P27xx · Transmission / P273A
P273A indicates that the transmission control module (TCM) has detected an abnormal apply time for friction element G, which is a clutch or band inside the automatic transmission. The TCM commands the element to engage and monitors how long it takes for the expected mechanical response, and when that time falls outside the programmed range, it stores this code.
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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