Transmission Fluid Temperature Sensor A Circuit
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.
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.
Real-world scan data
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
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?+
Can I just clear P0710?+
Related codes
Read & clear P0710 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.