P0793

Intermediate Shaft Speed Sensor A Circuit No Signal

High severity

Intermediate shaft speed sensor A is connected and powered, but no rotation pulses arrive while the transmission is in motion. Either the sensor reluctor wheel is damaged, the sensor air gap is wrong, or the element has failed open.

Common causes

Failed sensor element (open)
One of the most commonly reported causes for this code — check this first.
high
Typical part cost: $220-1650
Damaged reluctor wheel
A plausible cause — test and verify before replacing parts.
medium
Typical part cost: $220-1650
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First things to check

1Confirm the code with a scan tool and check for additional related codes.
2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does P0793 mean?

P0793 means "Intermediate Shaft Speed Sensor A Circuit No Signal". It is a generic OBD-II code that points to a fault in the transmission.

What are the most common causes of P0793?

failed sensor element (open); damaged reluctor wheel — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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