Question 1

What does P0720 mean?

Accepted Answer

P0720 - Output Speed Sensor Circuit. Transmission output shaft speed sensor is malfunctioning.

Question 2

What are the symptoms of P0720?

Accepted Answer

Check engine light, Speedometer may not work, Erratic shifting, Limp mode

Question 3

What causes P0720?

Accepted Answer

Failed output speed sensor, Wiring damage, Corroded connector, Damaged reluctor ring, Metal debris on sensor

Question 4

How much does it cost to fix P0720?

Accepted Answer

Typical repair cost: $50-$400. Output speed sensor is usually external on the transmission — a relatively easy repair.

P0720 — Output Speed Sensor Circuit

Don't guess — diagnose P0720 the right way