OBD-II Generic Error Code P0717: How to Fix It

Medium 1-2 hours Medium Severity Verified June 2026
Error Code
P0717
Brand
OBD-II Generic
Product Type
automotive
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
1-2 hours
Error code P0717 means your car's transmission control module is not receiving a signal from the input/turbine speed sensor. This sensor monitors the rotational speed of the torque converter's turbine, which is critical for proper shifting. Without this signal, the transmission may shift harshly, slip, or go into limp mode. Common causes include a faulty sensor, wiring issues, low transmission fluid, or a faulty transmission control module.
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Tools You'll Need

How to Fix Error Code P0717

  1. Check Transmission Fluid Level and Condition

    Be careful of hot engine and transmission components.
  2. Inspect the Input/Turbine Speed Sensor Connector

    Disconnect the battery negative terminal before working on electrical connectors.
  3. Test the Sensor Resistance

  4. Check Wiring and Signal Circuit

  5. Replace the Input/Turbine Speed Sensor

    Ensure the transmission fluid level is correct after replacement.
  6. Test Drive and Verify Repair

    If transmission slips or harsh shifts persist, stop driving and seek professional help.

Parts You May Need

Input/Turbine Speed Sensor
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Transmission fluid
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Input/Turbine Speed Sensor
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Transmission fluid
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Input/Turbine Speed Sensor
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Transmission fluid
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Input/Turbine Speed Sensor
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Transmission fluid
Check Price on Amazon
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When to Call a Professional

If you've replaced the sensor, checked wiring, and the code returns, or if you suspect internal transmission damage (e.g., broken turbine, valve body issues), take your car to a professional transmission specialist. Also, if you lack the tools or confidence to work on electrical systems, seek professional help.

Frequently Asked Questions

Can I drive with a P0717 code?
It's not recommended. The transmission may shift harshly, slip, or go into limp mode, which can cause further damage. You should diagnose and fix the issue promptly.
What causes a P0717 code?
Common causes include a faulty input/turbine speed sensor, damaged wiring or connectors, low or dirty transmission fluid, or a defective PCM/TCU.
How much does it cost to fix a P0717 code?
DIY cost is typically $30-$100 for a new sensor. If done by a shop, expect $150-$400 including labor and parts.
Can a low battery cause a P0717 code?
While a low battery can cause various electrical issues, it's unlikely to be the direct cause. However, it's wise to ensure the battery is fully charged and alternator working.
Is the P0717 code the same for all car brands?
Yes, P0717 is a generic OBD-II code with the same meaning across all vehicles. However, diagnostic steps and part locations may vary.