P0720 — Output Shaft Speed Sensor Circuit

P0720: Output Shaft Speed Sensor Circuit — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

Output Shaft Speed Sensor Circuit. Basic catalogue definition; diagnostic details have not yet been reviewed.

Affected system: Powertrain

Symptoms

  • Jerky shifts; unavailable gears or limp mode.

Possible causes

  • Faulty output sensor, damaged wiring or worn pulse wheel.

What to check

  • Inspect sensor-to-TCM connections and check transmission contamination.

Also written as: P0720-00, P072000, PO720 (some scan tools add the fault-type byte, e.g. -00).