P0713 Technical Description
Transmission Fluid Temperature Sensor A Circuit High Input
If you’re reading this, you’re likely dealing with a P0713 trouble code. In this guide, we’ll cover what it means, symptoms, causes, and how to fix it.
I’ve fixed many cars with this issue, so you’re in good hands.
We’ll explain how this code affects your vehicle’s performance and guide you through troubleshooting steps to resolve it.
Ready to get your car back to peak performance? Let’s dive right in.
Key Takeaways
- P0713 indicates a high input from the transmission fluid temperature sensor.
- Symptoms include the Check Engine Light, hard shifting, and transmission overheating.
- Common causes are a faulty TFT sensor, damaged wiring, and low or dirty transmission fluid.
- Diagnose by checking fluid levels, inspecting the sensor and wiring, and using an OBD-II scanner.
- Fixes include replacing the sensor, repairing wiring, and ensuring proper transmission fluid levels.
- Addressing the P0713 code promptly prevents serious transmission damage and costly repairs.
Table of ContentsShow
What Does P0713 Trouble Code Mean?
The P0713 trouble code indicates that the transmission fluid temperature (TFT) sensor is reporting a high voltage reading.
This sensor monitors the temperature of the transmission fluid to ensure it’s within the optimal range for operation.
When the sensor’s signal exceeds a specified threshold, the Powertrain Control Module (PCM) triggers the P0713 code.
Transmission fluid plays a crucial role in lubricating and cooling the transmission. If the fluid gets too hot, it can lead to serious transmission damage.
The TFT sensor helps prevent this by monitoring the fluid temperature and relaying the information to the PCM, which adjusts transmission operations accordingly.
A high input from this sensor suggests that the fluid temperature is abnormally high or that there’s an issue with the sensor or its circuit.
Several issues can trigger this code. It could be a genuine overheating problem, where the transmission fluid is actually too hot due to heavy loads, hot weather, or insufficient cooling.
Alternatively, the sensor might be malfunctioning, providing inaccurate readings. Wiring problems, such as short circuits or damaged connectors, can also cause the sensor to send a high voltage signal to the PCM.
Ignoring this code can lead to significant transmission damage, as high fluid temperatures can cause the transmission to overheat, leading to slipping, harsh shifts, or even complete transmission failure.
Addressing the P0713 code promptly is crucial to maintaining your vehicle’s health and avoiding costly repairs. In the following sections, we’ll go over the symptoms, causes, and how to fix this trouble code.
P0713 Trouble Code Symptoms
When your vehicle triggers the P0713 code, you’ll likely notice several symptoms. Here’s what to look out for:
- Check Engine Light is on
- Transmission shifts hard or erratically
- Overheating transmission
- Poor fuel economy
- Limp mode activation
- Delayed or harsh shifting
- Transmission slipping
P0713 Trouble Code Causes
Several issues can cause the P0713 trouble code to appear. Here are the common causes:
- Faulty transmission fluid temperature sensor
- Damaged or corroded wiring/connectors
- Short circuit in the TFT sensor circuit
- Low or dirty transmission fluid
- Overheating transmission fluid
- Malfunctioning PCM
How To Fix A P0713 Trouble Code
Fixing a P0713 trouble code involves diagnosing the root cause and addressing it. Here’s a step-by-step guide to help you through the process:
1. Scan for Codes
Use an OBD-II scanner to confirm the P0713 code and check for any additional related codes. This helps identify if there are other issues affecting the transmission.
2. Inspect the Transmission Fluid
Check the transmission fluid level and condition. Low or dirty fluid can cause overheating. If the fluid is low, top it off. If it’s dirty, perform a transmission fluid flush and replace the filter.
3. Check the TFT Sensor
Locate the transmission fluid temperature sensor, typically found in the transmission oil pan or near the transmission cooler. Inspect the sensor for any signs of damage or corrosion. If it’s faulty, replace it.
4. Examine Wiring and Connectors
Inspect the wiring and connectors leading to the TFT sensor. Look for signs of wear, corrosion, or damage. Repair or replace any damaged wiring or connectors to ensure a proper connection.
5. Test the TFT Sensor
Use a multimeter to test the TFT sensor’s resistance and voltage readings. Compare them with the manufacturer’s specifications. If the readings are out of range, replace the sensor.
6. Check for Short Circuits
Inspect the sensor circuit for any short circuits or grounding issues. Repair any wiring problems to prevent incorrect signals being sent to the PCM.
7. Reset the Code
After performing repairs, use the OBD-II scanner to clear the P0713 code. Take your vehicle for a test drive to see if the code reappears. If it does, further diagnosis might be needed, possibly involving a professional mechanic.
Following these steps should help you pinpoint and resolve the issue causing the P0713 trouble code, restoring your vehicle’s performance and preventing further transmission damage.
Conclusion
Now you know what the P0713 trouble code means and how you can fix it.
Have you ever dealt with a transmission issue like this before?
Drop a comment below and share your experience or ask any questions you have!
