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P0711 – Transmission Fluid Temperature Sensor Circuit Range/Performance (OBD2)

P0711 means "Transmission Fluid Temperature Sensor Circuit Range/Performance". The transmission fluid temperature sensor signal is electrically present but implausible: it does not match what the control unit expects for the current operating conditions or from other sensors. This is a performance fault, not a broken wire.

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P0711 quick summary

Fault codeP0711
MeaningTransmission Fluid Temperature Sensor Circuit Range/Performance
SystemPowertrain (Engine & Transmission)
VehiclesGeneric OBD2
SeverityMedium
Can I drive?Yes, carefully. Shifts may be harsh and the gearbox may not protect itself from overheating – avoid towing and heavy loads.
Repair cost€40 – €600

How the transmission fluid temperature sensor works

The transmission fluid temperature sensor tells the control unit how warm the gearbox oil is, which affects shift quality, torque converter lock-up and overheating protection.

The sensor is a thermistor inside the gearbox, often part of the internal wiring harness or valve body. Cold fluid is thick, so the control unit adjusts shift pressures and timing; when the fluid is very hot, it changes the shift strategy and locks the torque converter to reduce heat.

Codes P0710–P0714 report circuit, range, low, high and intermittent faults. A wrong signal can cause harsh shifts when cold, no torque converter lock-up or limp mode.

Because the sensor is usually inside the gearbox, its replacement often involves draining fluid and removing the oil pan or the internal harness.

On VAG vehicles (VW, Audi, Škoda, Seat, Cupra), VCDS and older VAG testers can show this code as the five-digit VAG code 17095 (P0711). Both numbers mean the same fault.

Symptoms of P0711

  • Harsh or delayed shifts, especially when cold
  • Torque converter does not lock up
  • Gearbox temperature display wrong
  • Limp mode
  • Check Engine or gearbox warning light

Most common causes of P0711 (most likely first)

Mechanic's Pro Tip

On many gearboxes the temperature sensor is part of the internal wiring harness – order the complete harness and replace the fluid and filter at the same time.

  1. 1.Transmission fluid temperature sensor worn, contaminated or out of calibration

    Most likely

    The signal drifts slowly, so it is still within the electrical limits but wrong.

  2. 2.Mechanical problem in the system the transmission fluid temperature sensor measures or controls

    For example a leak, a sticking part or a restriction that really changes the measured value.

  3. 3.High resistance in a connector or ground

    Corrosion causes a voltage drop that shifts the reading.

  4. 4.Failed fluid temperature sensor

  5. 5.Internal gearbox harness damage

  6. 6.Gearbox genuinely overheating (range faults)

  7. 7.Transmission control unit fault

Step-by-step diagnostic guide

  1. 1

    Read codes and compare temperatures

    Read the transmission codes. On a cold car, the fluid temperature should match coolant and air temperature.

  2. 2

    Compare live data with expected values

    Read the transmission fluid temperature sensor values in live data and compare them with related readings (engine speed, load, temperature or pressure) and with the specification. A value that is electrically fine but wrong for the conditions confirms a performance fault – then check the mechanical side before replacing the part.

  3. 3

    Check the connector

    Check the gearbox connector for oil and corrosion.

  4. 4

    Measure the sensor

    Measure the sensor resistance through the gearbox connector at a known temperature.

    Multimeter: Typical NTC: several kΩ when cold, a few hundred ohms when hot – check the specification table.

  5. 5

    Check fluid condition

    Check the fluid level and smell – burnt fluid points to real overheating.

  6. 6

    Replace and adapt

    Replace the sensor or harness, refill with the correct fluid and run the gearbox adaptations.

Frequently asked questions

Can I keep driving with P0711?

Yes, carefully. Shifts may be harsh and the gearbox may not protect itself from overheating – avoid towing and heavy loads.

How much does it cost to fix P0711?

Typical repair costs are 40 € – 600 €, depending on the cause and the vehicle. The most common fixes are: transmission fluid temperature sensor worn, contaminated or out of calibration; mechanical problem in the system the transmission fluid temperature sensor measures or controls; high resistance in a connector or ground. Always confirm the cause with the tests above before buying parts.

Why does fluid temperature affect shifting?

Cold fluid is thicker, so the gearbox needs different pressures and timing for smooth shifts.

Can I check the fluid temperature?

Yes, in live data with a scan tool that can read the transmission control unit.

What is the difference between P0711 and similar codes?

P0711 belongs to a group of codes for the same component that differ in the type or location of the fault: P0710 – Transmission Fluid Temperature Sensor Circuit Malfunction; P0712 – Transmission Fluid Temperature Sensor Circuit Low Input; P0713 – Transmission Fluid Temperature Sensor Circuit High Input; P0714 – Transmission Fluid Temperature Sensor Circuit Intermittent. The tests on this page apply to the whole group; the type of fault tells you where to start.

Related fault codes

This guide is for information only. Working on vehicles can be dangerous — if you are unsure, have the car checked by a qualified mechanic. Values can differ between model years; always check the manufacturer's repair information.