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DTC codes / P07xx · Transmission / P074D

P074DUnable to Engage Gear 5

P074D indicates that the transmission control module commanded fifth gear but the transmission did not mechanically engage it within the expected time, based on input and output speed sensor comparisons. The computer detects a mismatch between the expected gear ratio for fifth gear and the actual ratio, flagging the fault when the discrepancy persists.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyProfessional
AreaTransmission

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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