OBD-II Code · Transmission
P0713
TFT Sensor Circuit High Input
Severity
medium
Worth booking. It costs fuel, emissions or comfort until it is fixed.
Can you drive it
Only if running normally
A short trip to a shop may be reasonable if the light is steady and the car runs normally. Stop safely for a flashing light, severe shaking, overheating, loss of power, or another urgent warning. The code alone cannot confirm safety.
Indicative cost (USD)
$150–$400
Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
TFT sensor voltage high.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then work the likely-causes list in the order shown.
That order is what a shop checks first for this code — wiring and connections before the component they run to, because a connector costs nothing to inspect and is a common answer.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Check engine light
- Limp mode
Likely causes
- Open circuitMost common
- Failed sensor
Read the full diagnostic procedureP0713 is the mirror of P0712: the TCM sees the TFT signal pinned at or near reference voltage (typically above 4.85V for 5+ seconds), which correspon…
P0713 is the mirror of P0712
the TCM sees the TFT signal pinned at or near reference voltage (typically above 4.85V for 5+ seconds), which corresponds to either an open circuit (sensor disconnected, broken wire, or open thermistor element) or a fluid temperature below the sensor's valid range (below roughly -40F). The substitute value the TCM uses when this code is active is usually -40F, which forces the trans into a cold-fluid strategy with delayed shifts and torque-converter unlock disabled, so the customer complaint is almost always harsh or delayed shifts plus a CEL. Cheap diagnostics: at the case connector with key-on, jumper the signal pin to ground through a known resistor (1,000 ohms simulates roughly 200F), if the live data jumps to the corresponding temp the TCM and wiring are healthy and the sensor or its internal connection is open; if the reading does not respond the fault is in the harness between the case and the TCM or inside the TCM itself. Ohm the signal wire end-to-end with the case connector disconnected and the TCM connector disconnected, expect under 5 ohms for a continuous wire. Expensive misdiagnosis: do not condemn the TCM for a no-response-to-jumper test until you have verified TCM power and ground, a corroded TCM ground (commonly on a body or trans-case bolt) produces identical symptoms and is a 15-minute fix.
Vehicle-specific patterns2005-2010 Ford Mustang/F-150 with 5R55S/6R80 sees P0713 from the external case-connector pin backing out under vibration, a $40 pigtail repair; 2007-…
- 2005-2010Ford Mustang/F-150 with 5R55S/6R80 sees P0713 from the external case-connector pin backing out under vibration, a $40 pigtail repair;
- 2007-2013Mercedes 7G-Tronic (722.9) throws P0713 when the 13-pin connector adapter at the valve body leaks ATF up the wires and oxidizes the TCM pins, the 13-pin adapter is a $90-150 part and a published Mercedes WIS procedure;
- 2008-2014Subaru Outback/Legacy with 4EAT/5EAT has a discrete external TFT sensor that fails as a unit and is individually serviceable.
Estimated repair$100 to $2,100.
Look up another code
P0713 — frequently asked
What does a P0713 code mean?
TFT sensor voltage high.
What causes a P0713 code?
Common causes: Open circuit; Failed sensor.
What are the symptoms of a P0713 code?
Typical symptoms: Check engine light; Limp mode.
Is it safe to drive with a P0713 code?
Only if running normally. A short trip to a shop may be reasonable if the light is steady and the car runs normally. Stop safely for a flashing light, severe shaking, overheating, loss of power, or another urgent warning. The code alone cannot confirm safety. Estimated repair: $150-$400.
How do I diagnose a P0713 code?
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed. 1. Note every code that is set, not just this one. 2. Read the freeze frame — the conditions the fault was recorded under. 3. Confirm the fault is current rather than history. 4. Then work the likely-causes list in the order shown.
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