P0720

Output Speed Sensor Circuit Malfunction

Severity: High Transmission Generic OBD-II Code Est. Repair: $150 - $400

High severity. Avoid long drives and get diagnosed as soon as possible. Flashing check engine light = stop driving if safe.

What Does P0720 Mean?

Transmission output speed sensor circuit fault.

Common Symptoms

CEL
Speedo/shift issues

Possible Causes

Failed sensor
Wiring
Tone ring
TCM

How to Fix P0720 – Repair Guide

Inspect sensor and wiring
Replace if needed
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Recommended OBD2 Scanners & Tools

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Disclaimer: Information is for educational reference only and does not replace professional diagnosis. Actual causes and costs vary by vehicle make, model, year and condition. Always verify with a qualified technician.