P0711
Transmission Fluid Temperature Sensor A Circuit Range/Performance
Transmission
Generic OBD-II
High
What it means
P0711 means the transmission fluid temperature sensor is giving a reading that doesn't make sense — out of range, stuck, or not changing the way the computer expects. The transmission uses fluid temperature to time shifts and torque-converter lockup, so a bad reading typically shows up as harsh or delayed shifting rather than any starting problem. Low or degraded fluid can trigger it, so check that first.
High
Can I keep driving? Usually drivable — the engine starts and runs, but you may get harsh or delayed shifts and no torque-converter lockup; avoid heavy towing until fixed.
Common symptoms
What you'll notice
- Check-engine light on
- Harsh, delayed, or erratic shifting
- Torque converter clutch not locking up
- Slightly reduced fuel economy
Common causes
Most likely first
- Faulty transmission fluid temperature sensor (reading implausible or stuck)Likely
- Low or degraded transmission fluidCommon
- Wiring or connector fault in the sensor circuitCommon
- Faulty transmission control module (less common)Less often
How to diagnose & fix
Work through it in order
- Check the transmission fluid level and condition first — low or burnt fluid affects the reading.
- Scan the live fluid-temperature value and compare it to actual temperature; look for a stuck or out-of-range reading.
- Inspect the sensor wiring and connector for damage or corrosion.
- Replace the temperature sensor if it tests bad; suspect the control module last. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0711?+
Short term, usually yes, but the transmission may shift harshly and skip converter lockup, which runs it hotter. Avoid heavy loads and repair it before it causes wear.
Can I just clear P0711?+
It will return once the module sees the implausible temperature again. Check the fluid and sensor rather than just clearing the code.
Related codes
Often seen with P0711
Read & clear P0711 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX