P0715 means the transmission control module is not receiving a valid signal from the input speed sensor, also called the turbine speed sensor. This sensor measures how fast the transmission input shaft is spinning, which is essential for calculating proper gear changes.
P0715 means the transmission control module is not receiving a valid signal from the input speed sensor, also called the turbine speed sensor. This sensor measures how fast the transmission input shaft is spinning, which is essential for calculating proper gear changes.
P0715 is a transmission-related diagnostic trouble code classified as high severity. When your vehicle's ECU detects this condition, it stores P0715 and illuminates the check engine light.
If your vehicle has triggered P0715, you may notice one or more of these symptoms:
Here are the most common causes of P0715, ranked by how likely they are to be the culprit:
No - address this immediately. Without a reliable input speed signal, the transmission cannot calculate correct shift points. This can cause harsh shifting, gear slipping, or the vehicle entering limp mode. Avoid driving.
Follow these steps to pinpoint the root cause of P0715:
Repair costs for P0715 vary depending on the root cause and your vehicle. Here are typical estimates:
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
P0715 behaves differently depending on your vehicle. Select your car below for model-specific causes, known issues, and adjusted cost estimates:
These codes are often seen alongside P0715 or indicate related issues:
P0715 means the transmission's input speed sensor is not sending a reliable signal to the control module. This sensor tells the transmission how fast the input shaft is spinning, which is critical for calculating when to change gears.
The input speed sensor is typically mounted on the outside of the transmission housing, near the bell housing where the engine meets the transmission. On some vehicles, it is inside the transmission and requires pan removal to access.
Driving is not advised. The transmission may stay in limp mode or shift unpredictably. Short-distance driving to a garage at low speed is generally acceptable, but avoid motorway driving.
The sensor itself costs 30-150 EUR depending on the vehicle. Labour adds 80-250 EUR. It is one of the cheaper transmission repairs, especially compared to internal transmission work.
Yes. Contaminated fluid with metal particles can interfere with the magnetic speed sensor. A transmission fluid change may resolve the issue if the sensor itself is not damaged.
Your car logged P0715. Skanyx reads it on any standard Bluetooth OBD2 adapter, tells you whether it is safe to keep driving, and shows the €100-€1350 repair range so you know the number before a shop quotes you.
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