P0713
Transmission Fluid Temperature Sensor A Circuit High
Transmission controls
Generic OBD-II
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.
High
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.
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?+
Usually yes for short trips, but the transmission may shift firmly and skip converter lockup while it protects itself. Fix it before extended driving to avoid overheating the fluid.
Can I just clear P0713?+
It returns once the TCM re-reads the sensor. The faulty sensor or open wiring has to be repaired for the code to stay cleared.
Related codes
Often seen with P0713
Read & clear P0713 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