What does code P0794 mean?

Q: What does code P0794 mean?

Intermediate Shaft Speed Sensor 'A' Circuit Intermittent. P0794 means the transmission control module (TCM) has detected an intermittent signal from the intermediate shaft speed sensor 'A' circuit, which measures the rotational speed of an internal transmission shaft. The TCM sets this code when the sensor signal drops out or becomes erratic for a brief period, often without storing a permanent hard fault.

DTC codes / P07xx · Transmission / P0794

P0794Intermediate Shaft Speed Sensor 'A' Circuit Intermittent

P0794 means the transmission control module (TCM) has detected an intermittent signal from the intermediate shaft speed sensor 'A' circuit, which measures the rotational speed of an internal transmission shaft. The TCM sets this code when the sensor signal drops out or becomes erratic for a brief period, often without storing a permanent hard fault.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

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.