What Codes Will This Page Cover?
This page will highlight the following error codes:
- P0712 Transmission Fluid Temperature Sensor “A” Circuit Low
- P0713 Transmission Fluid Temperature Sensor “A” Circuit High
- P0714 Transmission Fluid Temperature Sensor “A” Circuit Intermittent
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What Is the P0712 Code?
These are error codes that show up when there’s a problem in your transmission fluid or Transmission Fluid Temperature (TFT) sensor.
The TFT sensor is strategically located inside the transmission oil pan to detect any adverse changes in the transmission fluid’s temperature.
It is connected to the Powertrain Control Module (PCM), to which it sends the temperature signals.
The PCM, in turn, uses the signals to control shift points depending on how warm the transmission fluid is. For instance, if the fluid is cold, the PCM will delay shift points and vice versa.
The P0712, P0713, and P0714 codes are lodged when the PCM detects any problems or malfunctions in the TFT sensor and the transmission fluid itself.
More About P0712, P0713, and P0714
Even though all the codes above arise from transmission issues, they are not always caused by the same problems, nor do they have the same symptoms. Below is a further elaboration of what each code indicates:
- P0712 – A P0712 Code indicates that the Powertrain Control Module (PCM) in your engine has detected a low Transmission Fluid Temperature Sensor signal. A low or absent transmission fluid temperature sensor signal usually means that the circuit is shorted.
- P0713 – This is the opposite of the P0712 error code and is shown when the Transmission Control Module (TCM) detects higher temperatures in the transmission fluid.
- P0714 – This code appears when the transmission fluid temperature is either above or below the range specified by the vehicle manufacturer.
What Are the Symptoms of a P0712 Code?
Since Codes P0712, P0713, and P0714 affect the transmission system, their symptoms mainly involve transmission and shifting problems. Below is the full list of the common symptoms:
- An incessant check engine light
- Malfunctioning torque converter clutch (TCC)
- Problems with the transmission shift
- Delayed or harsh shifts
What Are Some Causes of a P0712 Code?
The following are the issues that can cause P0712, P0713, and P0714 trouble codes to appear on your vehicle:
- Faulty PCM – The P0712 and P0713 codes, in particular, often occur when your PCM does not receive accurate signals from your TFT sensor. Sometimes, the PCM may be faulty and, therefore, unable to receive or interpret signals.
- Wiring Problems – Fundamentally, both P0712 and P0714 Codes are caused by a short circuit in the TFT sensor. Poor wiring, particularly open wiring, is a common cause of short circuits in electrical systems and may also play a role here.
- Faulty TFT Sensor – A TFT sensor that is of poor quality or too old may constantly give out inaccurate signals.
- Transmission fluid leakage – This is especially the case when the leakage is large enough to affect the functions of the TFT sensor. The sensor may therefore give wrong readings, potentially triggering error codes.
How Serious Is the P0712 Code?
In a worst-case scenario, your car may get into Limp Mode, potentially leaving you stranded in the middle of a trip.
What’s more, a severely overheated transmission can blow up and cause smoke to come out of your car.
Therefore, it is important to get your car inspected as soon as possible.
Can I Still Drive with a P0712 Code?
No, it is not advisable to drive the P0712, P0713, and P0714 Codes. The transmission may overheat, leading to internal damage.
Further, if the problem is in your TFT sensor, driving with the code on could overwhelm the Electronic Control Unit (ECU) and cause it to lock the transmission, throwing the car into Limp Mode.
How Easy Is It to Diagnose a P0712 Code?
By virtue of having specific causes, it is rather easy to diagnose the error Codes P0712, P0713, and P0714. From the start, you will know that the problem is either in the TFT sensor, PCM, or the transmission itself.
Nonetheless, it is important to have a credible professional check the issue so they can pinpoint exactly what caused the TFT sensor to misbehave.
If you decide to diagnose the error by yourself, you may want to refer to your car manufacturer’s website or your vehicle’s Technical Service Bulletin (TSB) for the right steps to follow. Even then, seek professional advice before attempting any fixes.
How Difficult Is It to Inspect a P0712 Code?
Inspecting your car after a P0712, P0713, or P0714 error code is quite easy, but you will need to have a better understanding of your vehicle’s transmission system.
To avoid trial and error, always seek professional assistance.
Need Additional Help with Your P0712 Code?
P0712, P0713, and P0714 Codes may signal a serious issue that could drive your vehicle into Limp Mode or even damage your transmission system.
Talking to an expert is the best way out of the problem, and if you don’t know where to start, use Kelley Blue Book to find auto repair shops in your area.
You may also go through the comprehensive ODB-II Code list to have a better understanding of these and other codes that may apply to your situation.
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