Transmission Fluid Temperature Sensor A Circuit High
What it means
P0713 means the transmission fluid temperature sensor circuit is reading high — typically an open circuit that makes the fluid look far colder than it is. The transmission uses fluid temperature to schedule shifts and torque-converter lockup, so a bad reading causes firm or altered shifting and often a protective default mode until it's fixed.
Can I keep driving? Usually still drivable, but the transmission may shift firmly or skip torque-converter lockup and default to a protective mode. Fix it before long trips.
Real-world scan data
Appears alongside · share of P0713 scans
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
- Harsh, delayed, or altered shifting
- Torque-converter lockup not engaging (higher cruising RPM)
- Check-engine light on
- Slightly reduced fuel economy
Common causes
Most likely first
- Faulty transmission fluid temperature sensor (reads high resistance)Likely
- Open circuit in the sensor wiringCommon
- Corroded or loose connectorCommon
- Faulty TCM (less common)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and view the fluid temperature reading (an open reads unrealistically cold).
- Measure the sensor resistance and compare it to the temperature-vs-resistance spec.
- Inspect the wiring and connector for an open circuit or corrosion.
- Replace the sensor if it's out of spec, or repair the circuit.
- Clear the code and confirm the temperature reads correctly.
FAQ
Quick answers
Is it safe to drive with P0713?+
Can I just clear P0713?+
Related codes
Read & clear P0713 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.