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DTC codes / P27xx · Transmission / P273F

P273FTransmission Fluid Temperature Sensor B Over Temperature Condition

P273F means the transmission control module has detected that the transmission fluid temperature reported by sensor B has exceeded the safe operating limit, typically around 150 degrees Celsius or 300 degrees Fahrenheit. The computer is not reporting a sensor circuit fault but rather a genuine over-temperature condition that can degrade the fluid and damage internal transmission components.

SystemPowertrain
Code typeGeneric (all makes)
SeverityHigh
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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