Possible causes

– Faulty Shaft Speed Sensor
– Shaft Speed Sensor harness is open or shorted
– Shaft Speed Sensor circuit poor electrical connection

When is the code detected?

The P0793 code is detected when the vehicle speed is more than the 31 mph and the park/neutral switch is OFF or rhe engine speed is less that 300 RPM.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P0793 Description

This sensor detects the rotation speed of the counter gear. By comparing the counter gear speed signal with the direct clutch speed sensor signal, the Engine Control Module (ECM) detects the shift timing of the gears and appropriately controls the engine torque and hydraulic pressure according to various conditions. Thus smooth gear shifting is performed.

P0793 Information for specific makes

P0793 LEXUS
P0793 SCION
P0793 TOYOTA