Error code
OBD2 P0793
OBD2P0793
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Intermediate Shaft Speed Sensor 'A' Circuit No Signal.
Severity
moderateCan drive, but transmission performance may be affected.
Summary
P0793 indicates that there is no signal from the intermediate shaft speed sensor 'A', which monitors the speed of the transmission's intermediate shaft.
Symptoms
- Transmission slipping
- Check engine light on
Common Causes
- Poor wiring connection to the intermediate shaft speed sensor
- Faulty intermediate shaft speed sensor
- Short circuit in the sensor circuit
- ECM/PCM malfunction
Diagnosis
- Inspect wiring and connections to the intermediate shaft speed sensor
- Check for shorts or breaks in the sensor's electrical circuit
- Test the ECM/PCM for related issues
Fixes
- Replace faulty intermediate shaft speed sensor
FAQ
What causes P0793?
Common causes include poor wiring connections, a faulty sensor, or an issue with the transmission control module.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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