P0706 Technical Description
Transmission Range Sensor Circuit Range/Performance.
If you’re seeing the P0706 trouble code, this guide will help you understand its meaning, symptoms, causes, and fixes.
I’ve tackled this issue many times before and will guide you through it.
You’ll learn what P0706 means, the symptoms to watch for, possible causes, and practical fixes to get you back on the road.
Alright, let’s jump right in.
Key Takeaways
- The P0706 code relates to the transmission range sensor circuit.
- Symptoms include Check Engine Light, incorrect gear shifts, and potential starting issues.
- Causes range from a faulty sensor to damaged wiring and fluid contamination.
- Inspect and test the sensor, wiring, and transmission fluid to diagnose the issue.
- Replace faulty components and clear the code to ensure proper transmission function.
- Regular maintenance can help prevent P0706 and other transmission problems.
Table of ContentsShow
What Does P0706 Trouble Code Mean?
The P0706 trouble code indicates an issue with the transmission range sensor circuit.
This sensor, often called the neutral safety switch, tells your vehicle’s computer the position of the transmission shift lever. It ensures the car starts in park or neutral and prevents the engine from starting in gear, which could be dangerous.
When the P0706 code appears, it means the sensor’s input is out of the expected range. This can confuse the car’s computer, leading to a range of issues.
You might notice the Check Engine Light turning on, or your car may start in the wrong gear, which can be unsettling and potentially hazardous.
The transmission range sensor plays a crucial role in the proper operation of the transmission. It helps the vehicle know if it’s in park, reverse, neutral, or drive.
If this sensor fails or its signal is erratic, the transmission may not shift correctly. You might experience hard shifting, delayed engagement, or the transmission might not shift at all.
In some cases, a faulty sensor can lead to the vehicle being unable to start. Since the car’s computer can’t determine if the car is in park or neutral, it might prevent the engine from cranking to avoid accidental movement.
Addressing the P0706 trouble code promptly is essential to maintain the safety and functionality of your vehicle.
Ignoring it can lead to more severe transmission issues and potential safety risks. So, if you’re seeing this code, it’s time to diagnose and fix the problem to keep your car running smoothly.
P0706 Trouble Code Symptoms
Here are the common symptoms you might notice with the P0706 trouble code:
- Check Engine Light is on.
- Transmission may not shift correctly.
- The vehicle might start in the wrong gear.
- Lack of power.
- Transmission stuck in one gear.
- Erratic or harsh shifting.
- Engine may not start.
P0706 Trouble Code Causes
Several issues can trigger the P0706 trouble code. Here are the common causes:
- Faulty transmission range sensor (neutral safety switch).
- Damaged or corroded wiring or connectors.
- Misaligned transmission range sensor.
- Transmission fluid contamination.
- Internal transmission issues.
- Faulty or damaged transmission control module (TCM).
How To Fix A P0706 Trouble Code
Fixing the P0706 trouble code involves a few steps to diagnose and repair the issue. Here’s a straightforward guide to help you through the process:
1. Check the Transmission Range Sensor
Inspect the sensor for any visible damage or misalignment. If it’s misaligned, adjust it to the correct position.
2. Inspect Wiring and Connectors
Look for damaged, corroded, or loose wires and connectors related to the transmission range sensor. Repair or replace any faulty wiring and ensure all connections are secure.
3. Check Transmission Fluid
Ensure the transmission fluid is clean and at the correct level. Contaminated or low fluid can cause sensor issues. If necessary, replace the transmission fluid and filter.
4. Scan for Additional Codes
Use an OBD-II scanner to check for other related trouble codes. Additional codes can help pinpoint the exact issue.
5. Test the Transmission Range Sensor
Use a multimeter to test the sensor’s voltage and resistance according to the manufacturer’s specifications. Replace the sensor if it doesn’t meet the specified values.
6. Inspect the Transmission Control Module (TCM)
If all else checks out, the TCM might be faulty. Consult your vehicle’s service manual for testing procedures. Replace the TCM if necessary.
7. Clear the Code and Test Drive
After repairs, clear the trouble codes with an OBD-II scanner and take the vehicle for a test drive. Monitor for the reappearance of the P0706 code.
By following these steps, you can diagnose and fix the P0706 trouble code, ensuring your vehicle’s transmission operates smoothly. If you’re unsure about any steps, consider seeking help from a professional mechanic.
Conclusion
Now you know what the P0706 trouble code means and how to fix it.
Have you ever dealt with a tricky transmission issue?
Drop a comment below and share your experiences with P0706!
