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DTC/P0715

P0715: Input/Turbine Speed Sensor Circuit Malfunction

Quick Answer
Alta GravitàNon sicuro da guidareTrasmissione

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.

Costo di riparazione stimatoDa €100 a €1350+, varia in base al veicolo

Cosa significa P0715?

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 è un codice diagnostico di guasto relativo a trasmissione, classificato con gravità high. Quando la centralina (ECU) del tuo veicolo rileva questa condizione, memorizza P0715 e accende la spia motore.

Quali sono i sintomi di P0715?

Se il tuo veicolo ha attivato P0715, potresti notare uno o più di questi sintomi:

  • 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

Cosa causa P0715?

Ecco le cause più comuni di P0715, ordinate in base alla probabilità che siano la causa del problema:

altaFaulty input/turbine speed sensor
mediaDamaged or corroded sensor wiring or connector
mediaContaminated transmission fluid affecting sensor readings
bassaFaulty transmission control module (TCM)
bassaDamaged reluctor ring on the input shaft

È sicuro guidare con P0715?

No, risolvi subito il problema. 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.

Come si diagnostica P0715?

Segui questi passaggi per individuare la causa principale di P0715:

  1. 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.
  2. Check the input speed sensor connector for corrosion, bent pins, or loose connections. The connector is typically on the side of the transmission housing.
  3. Measure the sensor resistance with a multimeter (typical range 200-1500 ohms depending on manufacturer). Compare to the service manual specification for your vehicle.
  4. 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.
  5. 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.

Quanto costa riparare P0715?

I costi di riparazione di P0715 variano a seconda della causa principale e del tuo veicolo. Ecco le stime tipiche:

Riparazione Costo dei ricambi Costo della manodopera Stima totale Difficoltà fai-da-te
Input speed sensor replacement €30–€150 €80–€250 €110–€400 Moderata
Sensor wiring harness repair €20–€80 €80–€200 €100–€280 Moderata
Transmission fluid and filter change €50–€150 €80–€200 €130–€350 Moderata
TCM replacement and programming €300–€1000 €150–€350 €450–€1350 Professionale

Prezzi stimati al March 2026. I costi variano in base alla regione, al veicolo e all'officina.

P0715 su veicoli specifici

P0715 si comporta in modo diverso a seconda del tuo veicolo. Seleziona la tua auto qui sotto per cause specifiche del modello, problemi noti e stime dei costi adeguate:

Volkswagen

P0715 su 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.

Cosa causa P0715 su una Volkswagen Golf?

Volkswagen GolfDQ200 mechatronic unit internal speed sensor failure
Volkswagen GolfDSG fluid contamination affecting sensor accuracy

Costo di riparazione di P0715 per Volkswagen Golf

Costi stimati per i proprietari di Volkswagen Golfadeguato al rialzo rispetto alla media a causa dei prezzi dei ricambi specifici Volkswagen

Riparazione Costo dei ricambi Costo della manodopera Stima totale Difficoltà fai-da-te
Input speed sensor replacement €39–€195 €104–€325 €143–€520 Moderata
Sensor wiring harness repair €26–€104 €104–€260 €130–€364 Moderata
Transmission fluid and filter change €65–€195 €104–€260 €169–€455 Moderata
TCM replacement and programming €390–€1300 €195–€455 €585–€1755 Professionale

Prezzi stimati al March 2026. I costi variano in base alla regione, al veicolo e all'officina.

Renault

P0715 su 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.

Cosa causa P0715 su una Renault Megane?

Renault MeganeDP0/AL4 input speed sensor heat failure
Renault MeganeTransmission overheating causing premature sensor degradation

Costo di riparazione di P0715 per Renault Megane

Costi stimati per i proprietari di Renault Meganeadeguato al ribasso rispetto alla media a causa dei prezzi dei ricambi specifici Renault

Riparazione Costo dei ricambi Costo della manodopera Stima totale Difficoltà fai-da-te
Input speed sensor replacement €26–€128 €68–€213 €94–€340 Moderata
Sensor wiring harness repair €17–€68 €68–€170 €85–€238 Moderata
Transmission fluid and filter change €43–€128 €68–€170 €111–€298 Moderata
TCM replacement and programming €255–€850 €128–€298 €383–€1148 Professionale

Prezzi stimati al March 2026. I costi variano in base alla regione, al veicolo e all'officina.

Audi

P0715 su 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.

Cosa causa P0715 su una Audi A4?

Audi A4Multitronic CVT fluid contamination affecting sensors
Audi A4S-Tronic mechatronic speed sensor failure

Costo di riparazione di P0715 per Audi A4

Costi stimati per i proprietari di Audi A4adeguato al rialzo rispetto alla media a causa dei prezzi dei ricambi specifici Audi

Riparazione Costo dei ricambi Costo della manodopera Stima totale Difficoltà fai-da-te
Input speed sensor replacement €36–€180 €96–€300 €132–€480 Moderata
Sensor wiring harness repair €24–€96 €96–€240 €120–€336 Moderata
Transmission fluid and filter change €60–€180 €96–€240 €156–€420 Moderata
TCM replacement and programming €360–€1200 €180–€420 €540–€1620 Professionale

Prezzi stimati al March 2026. I costi variano in base alla regione, al veicolo e all'officina.

Peugeot

P0715 su 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.

Cosa causa P0715 su una Peugeot 308?

Peugeot 308AL4 turbine speed sensor failure
Peugeot 308EAT6 sensor connector corrosion

Costo di riparazione di P0715 per Peugeot 308

Costi stimati per i proprietari di Peugeot 308adeguato al ribasso rispetto alla media a causa dei prezzi dei ricambi specifici Peugeot

Riparazione Costo dei ricambi Costo della manodopera Stima totale Difficoltà fai-da-te
Input speed sensor replacement €27–€135 €72–€225 €99–€360 Moderata
Sensor wiring harness repair €18–€72 €72–€180 €90–€252 Moderata
Transmission fluid and filter change €45–€135 €72–€180 €117–€315 Moderata
TCM replacement and programming €270–€900 €135–€315 €405–€1215 Professionale

Prezzi stimati al March 2026. I costi variano in base alla regione, al veicolo e all'officina.

Questi codici compaiono spesso insieme a P0715 o indicano problemi correlati:

P0700P0716P0717P0720P0721P0722

Domande frequenti su P0715

What does P0715 mean?

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.

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