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TransmissionGeneric OBD-II codeUrgency: Monitor

Code P0711: gearbox oil temperature sensor: performance

P0711 means: transmission fluid temperature sensor "A": circuit out of range or performance problem.[1][2] The transmission fluid temperature sensor (a thermistor) tells the gearbox ECU the oil temperature, so it can schedule gear changes and torque converter lock-up and protect the fluid. The code indicates a reading that is inconsistent with conditions, for example one that does not rise after a long drive.[2][3]

System
Transmission
Urgency
Monitor
It is not usually urgent. Keep an eye on whether it gets worse and mention it at your next service.
Possible causes
4
sorted from most to least likely
Type
Generic
The same on all makes

4 sourcesHow we work

What code P0711 means

The transmission fluid temperature sensor (a thermistor) tells the gearbox ECU the oil temperature, so it can schedule gear changes and torque converter lock-up and protect the fluid. The code indicates a reading that is inconsistent with conditions, for example one that does not rise after a long drive.[2][3]

It is a generic OBD-II code (it starts with P0), so it means the same on any make.[1]

Original definition (SAE J2012): Transmission Fluid Temperature Sensor "A" Circuit Range/Performance[1][2]

Causes of P0711

From most to least likely, according to the sources.

  1. 1Faulty gearbox temperature sensor.[2][3]
  2. 2Damaged, corroded or shorted internal gearbox wiring or connector.[2][3]
  3. 3Low, degraded or contaminated fluid.[2][3]
  4. 4Gearbox ECU fault, uncommon.[2][3]

Symptoms

How to diagnose P0711

In order: from the most likely and cheapest to check to the most expensive.

  1. 1Check the gearbox oil level and condition.[2][3]
  2. 2Read the temperature in live data and compare it with the gearbox's actual temperature.[2]
  3. 3Measure the sensor's resistance at different temperatures.[2]
  4. 4Check the internal wiring and the connector, and replace the sensor if it is out of specification; it is usually part of the valve body harness.[2][3]

Can I keep driving with P0711?

Monitor

AutoDTCs rates it low to moderate: you can drive, but the gearbox may behave oddly and, if there is real overheating, its service life is shortened. Get it checked without delay.[2]

Documented faults related to P0711

Known faults of specific engines and cars, with their repair cost, the affected years and their sources.

Automatic gearbox (torque converter and CVT): the most serious faults by engine and car

All faults with the automatic gearbox (85)

Gearbox mechatronic unit: the most serious faults by engine and car

All faults with the mechatronic unit (14)

Engine sensors: the most serious faults by engine and car

All faults with the engine sensors (22)

P0711 by make

Documented faults that can trigger P0711 in each make's engines and cars.

Frequently asked questions

Can I drive with code P0711?

Normally yes, but the gearbox may work strangely. Check the oil level and get the repair done soon.[2]

Does the sensor have to be replaced?

Not always: first rule out the oil level and condition and the wiring. If the sensor fails, it is usually in the valve body.[2][3]

What does "range/performance" mean?

That the reading exists but does not fit reality, for example it stays cold after a long drive.[2]

Will I pass the MOT with code P0711?

If the code has switched on the engine warning light, no: with that light on, the inspection records a serious defect, and on Euro 5 and Euro 6 cars the ITV (Spain's roadworthiness inspection, similar to the MOT) also reads the OBD diagnostic system. Repair the fault before you go; clearing the code just before the inspection does not help either, because it counts as a serious defect.[4]

Not sure what is wrong with your car? Describe what you notice in the symptom diagnosis or see all fault codes.

Sources

Every fact on this page links to its source. If you find an error, let us know.

  1. P0711 DTCDTCSearch · Technical documentation · consulted 29 October 2026
  2. P0711 diagnostic trouble codeAutoDTCs · Technical documentation · consulted 29 October 2026
  3. OBD Fehlercode P0711CarWiki · Technical documentation · consulted 29 October 2026 · in German
  4. Desmontando mitos: ¿puede pasar mi coche la ITV con el testigo de «avería motor» encendido?Diariomotor · Motoring press · published 8 March 2021 · consulted 2 October 2026 · in Spanish