P0715: Input/Turbine Speed Sensor A Circuit Malfunction
Short answer: P0715 means “Input/Turbine Speed Sensor A Circuit Malfunction”. It is a standard OBD-II code, so the basic meaning is the same on every car. Below is what it means on each of the 6 cars we cover, with a link to the full page for each car.
Standard OBD-II code Same meaning on all cars (SAE J2012).
P0715 on each car
| Car | Meaning on this car | Confidence |
|---|---|---|
| Toyota Passo (1st gen) | No turbine revolution input (P0715/37) | high |
| Toyota Corolla (11th gen, E170) | Input/Turbine Speed Sensor A Circuit Malfunction | medium |
| Toyota Corolla (10th gen, E140) | Input/Turbine Speed Sensor A Circuit Malfunction | medium |
| Honda City (5th gen, GM2) | Input/Turbine Speed Sensor A Circuit Malfunction | medium |
| Honda Civic (10th gen, FC) | Input/Turbine Speed Sensor A Circuit Malfunction | medium |
| Suzuki Wagon R (Pakistan, K10B) | Input/Turbine Speed Sensor A Circuit Malfunction | medium |
Symptoms
- Check engine light on
Likely causes
- Potential causes for this code to set are
- Defective input speed sensor
- Faulty output speed sensor
- Damaged, worn, or broken reluctor ring or shaft
- Bad transmission torque converter
- Loose, burned, or otherwise damaged wiring and/or connectors
- PCM failure or programming error
What to check, in order
- Read the code with a scanner that can read the gearbox computer
- Check the gearbox fluid level and condition with the correct procedure
- Check the connector and wiring at the gearbox
- Have a gearbox specialist confirm before replacing parts
Causes and checks above are the general meaning. The exact test steps and values differ by car: open your car’s page.

