Transmission · Powertrain · generic (SAE-defined)
P0711: Transmission Fluid Temperature Sensor "A" Circuit Range/Performance
P0711 means the transmission fluid temperature sensor reading does not behave as expected, such as not warming up normally or changing too abruptly compared with operating conditions.
Standard title per SAE J2012 / ISO 15031-6 · Updated 2026-11-07 · By CarWhere Research
How P0711 sets
The transmission control module (TCM) expects fluid temperature to rise at a reasonable rate after a cold start and to track roughly with engine temperature and driving load. If the reading stays stuck, rises too slowly, jumps unrealistically, or disagrees with other temperature inputs, the module sets P0711. The exact limits and time windows are manufacturer-specific.
Common causes of P0711
Roughly most likely first; the actual cause depends on the vehicle and needs testing to confirm.
- Transmission fluid temperature sensor drifting or sticking
- Low fluid level
- Actual transmission overheating from towing or a clogged cooler
- Intermittent connector or internal harness fault
- Engine thermostat stuck open affecting comparison logic
- TCM software issue
P0711 symptoms
- Check engine light on
- Delayed torque converter clutch lockup
- Firm or erratic shifts
- Transmission overheat message on some vehicles
- Often few drivability symptoms
How P0711 is diagnosed
- Record freeze frame data, noting fluid and coolant temperatures when the code set
- Check fluid level and condition, looking for burnt smell or debris
- Graph fluid temperature from a cold start and confirm a smooth, steady rise
- Check engine coolant temperature and thermostat operation
- Inspect the transmission cooler and lines for blockage or damage
- Test the sensor resistance at known temperatures and inspect the connector
Typical fixes for P0711
- Correct the fluid level or service the fluid
- Replace the fluid temperature sensor or internal harness
- Clean or replace a restricted transmission cooler
- Replace a stuck-open engine thermostat
- Repair intermittent wiring
Replace parts only after testing confirms the cause — a code names the circuit or condition that failed a check, not necessarily the faulty part. We don’t publish per-repair prices; for what households actually spend on upkeep, see car repair costs.
Related codes & warning lights
P0711 FAQ
What does code P0711 mean?
P0711 means the transmission fluid temperature sensor reading does not behave as expected, such as not warming up normally or changing too abruptly compared with operating conditions. The standard definition is "Transmission Fluid Temperature Sensor "A" Circuit Range/Performance."
Can I drive with a P0711 code?
Short-term driving is usually possible. However, this code can sometimes reflect real overheating, so watch for slipping or burning smells and have it diagnosed within days.
Can a bad engine thermostat set P0711?
On some vehicles, yes. If the engine warms up too slowly, the transmission may also warm slowly, and the computer may decide the sensor is not performing correctly.
Does P0711 mean my transmission is overheating?
Not necessarily, but it can. Checking fluid condition and the cooler is part of the diagnosis before assuming the sensor is at fault.
Keep researching
More transmission codes
Sources
- SAE J2012 — Diagnostic Trouble Code Definitions (standard code titles)
- ISO 15031-6 — Road vehicles: communication between vehicle and external equipment for emissions-related diagnostics, Part 6: Diagnostic trouble code definitions
- U.S. EPA — Vehicle Emissions Inspection and Maintenance (I/M) programs
- U.S. EPA, 40 CFR 86.1806-17 — Federal onboard diagnostics requirements for light-duty vehicles
General information written by CarWhere Research, not a diagnosis of your vehicle. Manufacturers can add their own sub-definitions and test conditions; confirm with the factory service information for your year, make and model. Before paying for a repair, check NHTSA for open recalls and your warranty booklet: federal law requires an emissions warranty on major emission-control parts such as the catalytic converter and engine computer.