P1706 code — how to fix error fast
Address the P1706 code to amplify your driving quality. Understand its criticality for vehicle efficiency.
OBD2 problem codes related to the vital systems of the car are simply the worst kind, and the code P1706 is one of the most common codes. It often appears when there’s an issue with the transmission of your vehicle, but what’s the true P1706 code meaning?
Well, it’s a bit more complicated than that and our team will give you all the necessary bits of information through this guide. You’ll learn how to diagnose the root cause of the code, fix it, and prevent the code from repeating itself on a diagnostic scan.
Why you can trust REREV’s OBD2 code advice: Our automotive expert researchers with experienced mechanics undertakes a thorough research methodology to deliver precise insights on OBD codes. Find out more about OBD2 codes research process..
What does the P1706 code mean?
The P1706 code is a transmission range sensor circuit malfunction. It indicates that there is a problem with the open circuit of the transmission range sensor in your car. The transmission range sensor is responsible for sending signals to the transmission control module, which determines the appropriate gear for the vehicle to operate in.
The open circuit can cut the power supply and the sensor won’t be able to provide its readings to the control module. So, if this code appears, you’ll be looking at difficulties shifting the gears, problems starting your car, stuck transmission, or erratic shifts.
What causes the P1706 code?
Several factors could cause the P1706 code to appear on your car’s diagnostic system. Here are some of the most common causes:
Faulty transmission range sensor
A faulty transmission range sensor is the most common cause of the P1706 code. The sensor may be damaged or worn out, causing it to send incorrect signals to the transmission control module.
Loose or damaged wiring
Loose or damaged wiring can also cause this code to trigger. The wiring that connects the transmission range sensor to the transmission control module may be damaged or loose, causing a malfunction in the circuit.
Corroded connectors
Corroded connectors can also cause the code to appear. Corrosion can cause a break in the circuit, resulting in a malfunction in the transmission range sensor circuit.
Malfunctioning transmission control module
A malfunctioning transmission control module can also cause the P1706 code in your car. The module may be damaged or worn out, causing it to send incorrect signals to the transmission range sensor.
Which car models does the P1706 code affect the most?
The P1706 code can affect various car models, including Nissan, Ford, Mazda, and Toyota. However, some car models are more susceptible to this code than others. We looked into this to give you a definitive list of vehicles that are more exposed to the code than others, and here’s what it looks like:
- Nissan Altima: This car is said to be one of the most exposed vehicles to this code due to a faulty transmission range sensor.
- Nissan Maxima; For the same reasons as the Altima, Nissan Maxima is also easily affected by the code P1706.
- Ford Fusion: This vehicle equipped with an automatic gearbox has experienced issues with the open circuit of the transmission range sensor, therefore causing the code to activate.
How to diagnose the P1706 code
Diagnosing the P1706 code requires a series of steps that involve using specialized tools and equipment. So, we wanted to give you an overview of each diagnostic method you may use to diagnose this code, including those that can be done in a DIY manner:
Visual inspection
A visual inspection of the transmission range sensor, wiring, and connectors can help identify any visible damage or wear that may be causing the P1706 code.
Resistance testing
Resistance testing involves checking the resistance of the transmission range sensor and wiring to determine if they are within the manufacturer’s specifications.
Voltage testing
The next step you can take includes checking the voltage output of the transmission range sensor and wiring to determine if they are within the manufacturer’s specifications.
Check for other fault codes
Checking for other fault codes in the car’s diagnostic system can help identify any additional issues that may be related to the P1706 code. So, this step may help you figure out what to do next when you encounter this code.
How to fix the P1706 code
Fixing the P1706 code requires identifying the underlying cause of the issue. Now that you know everything there is to know about the code and its causes, you can use one of the following solutions:
Replacing a faulty transmission range sensor
Replacing the faulty transmission range sensor is the most common fix for the P1706 code. It may cost between $200 and $400, depending on the model of your car.
Repair loose or damaged wiring
Repairing or replacing the loose or damaged wiring can fix the code and it’s one of the most effective ways of dealing with this problem code. It usually costs between $100 and $200 to deal with faulty wiring, and you may want to leave this one to a trusted mechanic.
Fix the corroded connectors
Cleaning or replacing the corroded connectors can fix the code if the corrosion has led to the range sensor circuit sending an out-of-reach signal.
Malfunctioning transmission control module
Replacing the malfunctioning transmission control module can fix the code. This fix may cost between $500 and $800, or even higher than the $1000 price mark depending on your vehicle. So, we advise you to check for any other clues that may point to other causes before you get to this one.
How to prevent the P1706 code
Preventing the P1706 code requires proper maintenance of your car’s transmission system. Here are some of the preventative measures that you can take:
- Regularly inspect and maintain your car’s transmission system
- Check and replace the transmission fluid as recommended by the manufacturer
- Avoid driving your car in extreme conditions, such as on steep hills or in heavy traffic
Proper maintenance of your car’s transmission system can help prevent the code from appearing.
Our take
As the time comes to sum things up regarding the code P1706 and its implications, you’ll probably realize how badly this code could impact your vehicle even more. There’s no other way of dealing with the code than by looking into the possible reasons and checking them one by one to figure out the root source of the issue.
We hope that our guide will help you do just that, as well as fix the issue by using one of the mentioned solutions.
What are the symptoms of a P1706 code?
Symptoms of a P1706 code can include delayed or harsh shifting, decreased fuel efficiency, and even stalling while driving.
What causes a P1706 code?
There are several potential causes of a P1706 code, including a faulty high clutch drum speed sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning transmission control module.
How do I diagnose and repair a P1706 code?
Diagnosing and repairing the code can be difficult, and it’s often best left to a professional mechanic.
