P0710
Transmission Fluid Temperature Sensor A Circuit
Transmission
Generic OBD-II
High
What it means
P0710 means the computer sees a problem with the transmission fluid temperature sensor circuit. The transmission uses fluid temperature to schedule shifts and torque-converter lockup, so a bad signal typically causes harsh or delayed shifts and can let the fluid overheat. It does not by itself stop the engine from starting.
High
Can I keep driving? Usually yes — the car still drives, but shifts may feel harsh or delayed; repair it to protect the transmission from heat damage.
Common symptoms
What you'll notice
- Check-engine light on
- Harsh, delayed, or erratic shifting
- Torque converter not locking up (higher rpm at cruise)
- Slightly reduced fuel economy
Common causes
Most likely first
- Faulty transmission fluid temperature sensorLikely
- Wiring or connector fault in the sensor circuitCommon
- Low or degraded transmission fluidCommon
- Internal fault in the valve-body sensor assemblyLess often
- Faulty TCM/PCM (least likely)Less often
How to diagnose & fix
Work through it in order
- Scan and read the fluid-temperature value; look for implausible readings (very high or very low).
- Check the transmission fluid level and condition; top up or service if needed.
- Inspect the sensor wiring and connector for damage and corrosion.
- Replace the fluid temperature sensor (often part of the internal wiring/valve body) if out of range.
- If the circuit tests good, evaluate the TCM/PCM.
FAQ
Quick answers
Is it safe to drive with P0710?+
Short-term usually yes, but without a valid fluid temperature the transmission may shift harshly and cannot protect itself from overheating. Repair it soon.
Can I just clear P0710?+
You can, but the code returns if the sensor or wiring is faulty; fix the circuit and check the fluid rather than clearing it.
Related codes
Often seen with P0710
Read & clear P0710 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