⚡ AUTO CODE FIX
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TransmissionCritical⚠️ Professional Recommended

P0720

Output Speed Sensor Circuit Malfunction

The output shaft speed sensor has a circuit fault.

SeverityCritical
CategoryTransmission
Est. Repair Cost$150–$500
Code TypePowertrain
DIY RepairProfessional

⚡ Common Causes

⚠️ Symptoms

✅ How to Fix — Step by Step

  • Step 1:Check output sensor connector
  • Step 2:Inspect wiring
  • Step 3:Replace output speed sensor
  • Step 4:Check tone ring for damage
💡 Pro Tip: The output speed sensor also controls the speedometer — a faulty one causes both shifting and speed issues.

Repair Cost Estimate

Full Repair Estimate
$150–$500
DIY Possible?
PRO
Severity
Critical

Frequently Asked Questions

What does OBD2 code P0720 mean?+
P0720 stands for Output Speed Sensor Circuit Malfunction. The output shaft speed sensor has a circuit fault.
What causes code P0720?+
Faulty output speed sensor; Wiring damage; Metal debris on sensor; Damaged tone ring
How do I fix code P0720?+
Check output sensor connector; Inspect wiring; Replace output speed sensor; Check tone ring for damage
How much does it cost to fix P0720?+
Estimated repair cost for P0720 is $150–$500.
Is P0720 DIY-friendly?+
P0720 typically requires professional equipment and a qualified mechanic.

AI Diagnosis

Related Codes

P0700Transmission Control System Malfunction
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P0715Input/Turbine Speed Sensor Circuit Malfunction
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P0730Incorrect Gear Ratio
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P0731Gear 1 Incorrect Ratio
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P0732Gear 2 Incorrect Ratio
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P0733Gear 3 Incorrect Ratio
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