P0715 Code: Input / Turbine Speed Sensor Circuit
P0715 means a fault in the transmission input/turbine speed sensor circuit — the sensor that reports transmission input shaft speed.
- Applies to
- All OBD-II vehicles (any make or model)
- Est. repair cost
- $100 – $700
- Time to fix
- 1-3 hours
What it means
Common causes are a failed input speed sensor, wiring/connector faults, or low/dirty transmission fluid. This is a generic OBD-II powertrain code defined in the SAE J2012 standard, so it applies to virtually any 1996-or-newer OBD-II vehicle — cars, trucks, and modern fuel-injected motorcycles — from any manufacturer (Toyota, Honda, Ford and the rest). Read it with any OBD-II scanner; the meaning is the same across brands, though the exact repair can vary by engine.
Symptoms
- Check engine light on
- Erratic or harsh shifting
- Speedometer/shift issues; possible limp mode
How to fix it
- 1
Check fluid and the sensor
1. Check the transmission fluid level and condition. 2. Inspect and test the input/turbine speed sensor and wiring. 3. Replace if faulty, then clear the code.
Frequently asked questions
Can low fluid cause P0715?
It can contribute — low or dirty transmission fluid affects sensor readings and shifting. Check fluid before replacing parts.
Last updated July 16, 2026
Guidance only — always consult a qualified professional or the official service manual before carrying out repairs.