P0715 Ford Explorer
Input/Turbine Speed Sensor Circuit Malfunction · Powertrain Code · High
What is P0715?
The transmission input speed sensor is not providing a valid signal.
When the Ford Explorer triggers code P0715 (input/turbine speed sensor circuit malfunction), it typically points to an issue in the powertrain system. This is a high severity code, so address it promptly to avoid further damage or safety concerns. Below you'll find the most common causes, symptoms, and repair options specific to the Ford Explorer.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your Ford Explorer.
Common Causes on Ford Explorer
- Failed input/turbine speed sensor in the transmission
- Damaged wiring between the speed sensor and TCM
- Internal transmission damage affecting the input shaft speed signal
- Contaminated sensor from debris in degraded transmission fluid
Symptoms
- Check engine light
- Transmission shifts erratically or slips
- Speedometer may read incorrectly
- Transmission may go into limp mode
- Harsh or delayed shifts
Notes for Ford Explorer
On the Ford 10R80 10-speed transmission, always use Motorcraft Mercon ULV fluid — using the wrong fluid causes shift quality issues.