A P0710 trouble code is related to a vehicle’s automatic transmission fluid temperature sensor that monitors the fluid temperature to help protect from overheating.
What the P0710 code means
P0710 is an OBD-II generic code for a voltage issue with the transmission fluid temperature sensor often found in automatics. When the code is triggered, the voltage from the sensor being read by the transmission control unit (TCU) is outside of the manufacturer’s parameters. This may mean your transmission is overheating, or the sensor is faulty.
What causes the P0710 code?
The most common causes for a P0710 are:
- Faulty transmission temperature sensor
- Faulty transmission temperature sensor wiring
- Leaking, low, or dirty transmission fluid
- Damaged transmission
What are the symptoms of the P0710 code?
Most symptoms associated with a P0710 are no more serious than a check engine light, but not all cases are equal. Some vehicles may place the transmission in “limp-mode” that limits shift points and purposely limits performance.
How does a mechanic diagnose the P0710 code?
Your mechanic will first locate your vehicle’s transmission temperature sensor to test it both visually, and with a digital multi-meter. If the sensor and its associated wiring appear significantly damaged, or if the sensor does not send out a five volt signal, it will need to be replaced. If the sensor appears and test fine however, your mechanic will trace the temperature sensor circuit to repair a damaged wire and or connection.
As with most transmission trouble codes, the fluid will be checked for being low or dirty.
Common mistakes when diagnosing the P0710 code
Depending on how the vehicle is driving and the condition of the transmission fluid, the P0710 may be a stored code from a previous issue that was already mechanically resolved. It’s wise to clear the code and reset the engine computer before further troubleshooting to ensure the code returns.
How serious is the P0710 code?
A P0710 may not be serious if the sensor simply has gone bad. However, more worrisome would be if the transmission went into “limp-mode” with a P0710 as that could indicate a more serious mechanical problem.
When dealing with transmission temperature problems, you should act fast to catch the problem as early as possible.
What repairs can fix the P0710 code?
The most common repairs for a P0710 are as follows:
- Replacing the transmission temperature sensor
- Repairing transmission temperature sensor circuit wiring
- Flushing and changing transmission fluid
Additional comments for consideration regarding the P0710 code
A P0710 air bag code should be associated with an automatic transmission and most manuals do not come with a temperature sensor.
Need help with a P0710 code?
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