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OBD-II Code

P0720 — Output Speed Sensor Circuit Malfunction

A malfunction is detected in the transmission output speed sensor (OSS) circuit.

System Engine
Severity High
Safe to drive? Yes, with caution
Advanced scanner Yes

What does code P0720 mean?

A malfunction is detected in the transmission output speed sensor (OSS) circuit.

Common symptoms

  • Erratic speedometer readings
  • incorrect shifting

Possible causes

  • Faulty OSS
  • broken or damaged wiring

Initial recommendation

Inspect output speed sensor and wiring harness for faults.

Safety notice

This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.

Analyze this code with MecaOBD

Use the app to combine code P0720 with your vehicle's actual symptoms for more complete diagnostic guidance.

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