The Quick Answer above is the generic definition. What follows is what is documented for the Ford models that log P0720, checked against manufacturer data and owner reports.
DTC/P0720·Ford
P0720 on Ford: Causes, Symptoms and Fix Cost
Quick Answer
High SeverityNot safe to driveFord
P0720 on a Ford means the transmission control module is not receiving a proper signal from the output speed sensor. This sensor measures how fast the transmission output shaft rotates, which determines vehicle speed and helps the TCM calculate gear ratios and shift points.
Repair cost on Ford€85 - €350
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Ford Focus
2005-2022Focus Mk2 models with the 4F27E automatic and Mk3 models with the Powershift DCT can both trigger P0720. On the 4F27E, the output shaft sensor is externally mounted and cheap to replace. On the Powershift, the sensor is internal to the TCM housing and failure often requires TCM replacement.
What causes P0720 on a Ford?
Beyond the generic causes listed on the main P0720 page, these are the documented Ford-specific patterns:
Ford Focus4F27E output shaft sensor wear
Ford FocusPowershift DCT internal TCM speed sensor failure
How to diagnose P0720 on a Ford with OBD2
Follow these steps to pinpoint the root cause of P0720:
- Check if the speedometer is working. A dead speedometer alongside P0720 strongly points to the output speed sensor, since both the transmission and instrument cluster rely on this signal.
- Locate the output speed sensor on the transmission housing (typically near the tail shaft or differential housing). Inspect the connector for corrosion, loose pins, or damage.
- Measure sensor resistance with a multimeter and compare to manufacturer specifications (typically 300-1200 ohms). Also check for signal voltage while spinning the sensor manually if accessible.
- Use a scanner to monitor live data and compare input speed versus output speed readings. The output speed should correlate with vehicle speed and the current gear ratio.
- If the sensor and wiring test normal, inspect the transmission fluid for metal contamination. Debris on the magnetic sensor tip can cause signal distortion.
How much does P0720 cost to fix on a Ford? (EUR)
Estimated repair costs for P0720 in EUR, compiled across makes. Ford costs typically sit in the middle of each range.
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
Related codes that often appear with P0720 on Ford
These codes commonly cluster with P0720 on Ford vehicles:
Looking for the full P0720 reference (all makes, full diagnosis flow, complete repair cost matrix)?
See the main P0720 guideSkanyx · Ford
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