OBD-II Generic Error Code P0710: Transmission Fluid Temperature Sensor A Circuit – How to Fix It

Medium 1-2 hours Medium Severity Verified June 2026
Error Code
P0710
Brand
OBD-II Generic
Product Type
automotive
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
1-2 hours
Error code P0710 indicates a problem with the transmission fluid temperature (TFT) sensor circuit 'A'. This sensor monitors the temperature of the transmission fluid to help the transmission control module (TCM) manage shifting and torque converter lockup. A faulty sensor, wiring issue, or low fluid level can trigger this code.
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Tools You'll Need

How to Fix Error Code P0710

  1. Check Transmission Fluid Level and Condition

    Allow engine to cool if hot; use caution to avoid burns.
  2. Clear the Code and Test Drive

  3. Inspect Wiring and Connector to TFT Sensor

    Disconnect the battery negative terminal to prevent short circuits.
  4. Test the TFT Sensor Resistance

    Engine and transmission should be cool before testing.
  5. Replace the TFT Sensor if Faulty

    Use jack stands and wheel chocks; transmission fluid can be hot.
  6. Test the New Sensor and Clear Code

Parts You May Need

Transmission Fluid Temperature Sensor
Check Price on Amazon
Transmission Fluid
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Transmission Fluid Temperature Sensor
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Transmission Fluid
Check Price on Amazon
Transmission Fluid Temperature Sensor
Check Price on Amazon
Transmission Fluid
Check Price on Amazon
Transmission Fluid Temperature Sensor
Check Price on Amazon
Transmission Fluid
Check Price on Amazon
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When to Call a Professional

If you've checked the wiring and sensor but the code persists, or if you're uncomfortable working with transmission fluid and electrical systems, consult a professional mechanic. Internal transmission issues may also cause this code.

Frequently Asked Questions

Can I drive with error code P0710?
You can drive short distances, but it's not recommended. The TCM may use a default temperature value, leading to poor shifting and potential transmission damage. Fix it as soon as possible.
What causes the P0710 code?
Common causes include a faulty transmission fluid temperature sensor, damaged wiring or connector, low or dirty transmission fluid, or in rare cases, a failing TCM.
How much does it cost to fix P0710?
DIY cost is typically $30–$100 for a new sensor and fluid. Professional repair ranges from $150 to $400 depending on labor rates and parts.
Is P0710 the same for all car brands?
Yes, P0710 is a generic OBD-II code. The meaning and diagnostic steps are similar across all vehicles, but sensor location and specifications may vary.
What tools do I need to diagnose P0710?
You need an OBD2 scanner, a multimeter, basic hand tools (socket set, wrenches), and a drain pan for fluid. A jack and stands may be needed for under-vehicle access.