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.
What does P0715 mean?
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.
What are the symptoms of P0715?
If your vehicle has triggered P0715, you may notice one or more of these symptoms:
Check engine light and transmission warning light on
Harsh or erratic gear shifts
Transmission stuck in limp mode (usually 3rd gear)
Speedometer malfunction or erratic readings
Transmission slipping or refusing to shift
Delayed engagement when shifting from Park to Drive
What causes P0715?
Here are the most common causes of P0715, ranked by how likely they are to be the culprit:
highFaulty input/turbine speed sensor
mediumDamaged or corroded sensor wiring or connector
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.
How do you diagnose P0715?
Follow these steps to pinpoint the root cause of P0715:
Read freeze frame data and note vehicle speed, engine RPM, and transmission temperature when the code was set. This helps determine if the failure is intermittent or constant.
Check the input speed sensor connector for corrosion, bent pins, or loose connections. The connector is typically on the side of the transmission housing.
Measure the sensor resistance with a multimeter (typical range 200-1500 ohms depending on manufacturer). Compare to the service manual specification for your vehicle.
Monitor the input speed sensor signal with a scanner in live data mode while test driving. The signal should rise smoothly with vehicle speed and not drop out or show erratic readings.
If the sensor and wiring test good, check the transmission fluid condition. Metal debris from internal wear can interfere with the magnetic sensor and cause false readings.
How much does P0715 cost to fix?
Repair costs for P0715 vary depending on the root cause and your vehicle. Here are typical estimates:
Repair
Parts Cost
Labor Cost
Total Estimate
DIY Difficulty
Input speed sensor replacement
€30–€150
€80–€250
€110–€400
Moderate
Sensor wiring harness repair
€20–€80
€80–€200
€100–€280
Moderate
Transmission fluid and filter change
€50–€150
€80–€200
€130–€350
Moderate
TCM replacement and programming
€300–€1000
€150–€350
€450–€1350
Professional
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
P0715 on specific vehicles
P0715 behaves differently depending on your vehicle. Select your car below for model-specific causes, known issues, and adjusted cost estimates:
P0715 on Volkswagen Golf
Volkswagen Golf • 2003-2024
On Golf models with the DSG (DQ200/DQ250), the input speed sensor is integrated into the mechatronic unit. P0715 on DSG transmissions often indicates a mechatronic unit fault rather than a simple sensor failure. The DQ200 7-speed dry clutch variant is more prone to this code than the DQ250 wet clutch version.
What causes P0715 on a Volkswagen Golf?
Volkswagen GolfDQ200 mechatronic unit internal speed sensor failure
Estimated costs for Volkswagen Golf ownersadjusted higher than average due to Volkswagen-specific parts pricing
Repair
Parts Cost
Labor Cost
Total Estimate
DIY Difficulty
Input speed sensor replacement
€39–€195
€104–€325
€143–€520
Moderate
Sensor wiring harness repair
€26–€104
€104–€260
€130–€364
Moderate
Transmission fluid and filter change
€65–€195
€104–€260
€169–€455
Moderate
TCM replacement and programming
€390–€1300
€195–€455
€585–€1755
Professional
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
P0715 on Renault Megane
Renault Megane • 2006-2023
Megane models with the DP0/AL4 automatic transmission are well-known for P0715. The input speed sensor on these transmissions fails frequently, often due to heat damage from the transmission running hot. Replacing the sensor along with fresh fluid usually resolves the issue. Consider upgrading to an improved aftermarket sensor.
What causes P0715 on a Renault Megane?
Renault MeganeDP0/AL4 input speed sensor heat failure
Renault MeganeTransmission overheating causing premature sensor degradation
P0715 repair cost for Renault Megane
Estimated costs for Renault Megane ownersadjusted lower than average due to Renault-specific parts pricing
Repair
Parts Cost
Labor Cost
Total Estimate
DIY Difficulty
Input speed sensor replacement
€26–€128
€68–€213
€94–€340
Moderate
Sensor wiring harness repair
€17–€68
€68–€170
€85–€238
Moderate
Transmission fluid and filter change
€43–€128
€68–€170
€111–€298
Moderate
TCM replacement and programming
€255–€850
€128–€298
€383–€1148
Professional
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
P0715 on Audi A4
Audi A4 • 2005-2024
The A4 with Multitronic CVT (B7/B8) and S-Tronic DSG uses speed sensors that can fail due to metallic debris in the transmission fluid. The Multitronic CVT is particularly sensitive and requires strict adherence to fluid change intervals (every 60,000 km). On S-Tronic models, the sensor is part of the mechatronic unit.
What causes P0715 on a Audi A4?
Audi A4Multitronic CVT fluid contamination affecting sensors
Audi A4S-Tronic mechatronic speed sensor failure
P0715 repair cost for Audi A4
Estimated costs for Audi A4 ownersadjusted higher than average due to Audi-specific parts pricing
Repair
Parts Cost
Labor Cost
Total Estimate
DIY Difficulty
Input speed sensor replacement
€36–€180
€96–€300
€132–€480
Moderate
Sensor wiring harness repair
€24–€96
€96–€240
€120–€336
Moderate
Transmission fluid and filter change
€60–€180
€96–€240
€156–€420
Moderate
TCM replacement and programming
€360–€1200
€180–€420
€540–€1620
Professional
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
P0715 on Peugeot 308
Peugeot 308 • 2007-2024
The 308 with the AL4/DP0 and later EAT6 (Aisin TF-70SC) automatic transmissions can trigger P0715. On the AL4, the turbine speed sensor is a very common failure part. The EAT6 is more reliable but can develop sensor connector corrosion. Always change fluid at 60,000 km intervals.
What causes P0715 on a Peugeot 308?
Peugeot 308AL4 turbine speed sensor failure
Peugeot 308EAT6 sensor connector corrosion
P0715 repair cost for Peugeot 308
Estimated costs for Peugeot 308 ownersadjusted lower than average due to Peugeot-specific parts pricing
Repair
Parts Cost
Labor Cost
Total Estimate
DIY Difficulty
Input speed sensor replacement
€27–€135
€72–€225
€99–€360
Moderate
Sensor wiring harness repair
€18–€72
€72–€180
€90–€252
Moderate
Transmission fluid and filter change
€45–€135
€72–€180
€117–€315
Moderate
TCM replacement and programming
€270–€900
€135–€315
€405–€1215
Professional
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
Related diagnostic codes
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.
Where is the input speed sensor located?
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.
Can I drive with P0715?
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.
How much does an input speed sensor cost?
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.
Can dirty transmission fluid cause P0715?
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.
Scan your car with Skanyx to diagnose P0715
Connect any Bluetooth OBD2 adapter, scan for codes, and get AI-powered diagnostics with severity ratings and repair cost estimates.
