By Ezra Lane When you encounter the P1706 code on your Nissan, it signifies an issue with the park neutral position switch, which verifies the car's gear status for the computer system. If this switch malfunctions, your transmission may not recognize whether the car is in park or neutral, causing gear shifts to malfunction or the car to start in incorrect gears. To fix this, inspect the switch and its connections for damage or corrosion and consider replacing the switch if it shows wear or damage. Ensuring correct installation and alignment, followed by resetting the error codes using an OBD-II scanner, are crucial steps. Knowledge of these fixes can prepare you better for addressing this issue efficiently.
P1706 Nissan Code Meaning
The P1706 Nissan code signals a transmission control switch circuit issue.
It occurs when the transmission control module (TCM) can't confirm the vehicle is in neutral or park.
Causes include a faulty park/neutral position switch or damaged wiring.
Prompt repair is essential to prevent further issues.
Error Code P1706 Symptoms
When your car shows a P1706 error code, you'll likely notice some clear signs. These mainly affect how the transmission works, which can change how your car drives. Acting fast can stop more harm to your car.
Signs of the P1706 Error Code:
1. Trouble with Gear Shifting:
Your car may have problems changing gears. It might get stuck in one gear or switch gears when it's not supposed to. This can make the ride feel rough and make it harder to control the car.
2. Car Starts in the Wrong Gear:
Your car should only start when it's in Park or Neutral. If it starts in other gears, this points to an issue with the park-neutral position switch.
3. Check Engine Light Comes On:
Along with these gear problems, the check engine light might turn on. This light can mean different things, including issues with the park-neutral position switch.
Causes of Nissan P1706 Fault Code
The Nissan P1706 error code pops up when there's a problem with the Park Neutral Position (PNP) switch. This switch tells your car's computer what gear the transmission is in.
Here are some reasons why this might happen:
- Bad Park Neutral Position Switch
- The PNP switch might be broken or not working well. If it doesn't send the right signal to the car's computer, the P1706 error shows up. This can happen because of wear and tear or damage.
- Wrong Alignment or Adjustment
- If the PNP switch isn't aligned correctly, it can't tell if the car is in park or neutral. Misalignment can happen over time or after a repair if the switch wasn't set back properly.
- Wiring Problems
- If there are issues with the wiring, like cuts, breaks, or loose connections, the signals from the PNP switch can't reach the car's computer. This can cause the P1706 error code to appear.
Tools Needed to Diagnose
To find out what's causing the P1706 Nissan error code, you'll need a few key tools.
These tools help you figure out the problem without guessing or wasting time.
- OBD-II Scanner: This handy device checks your car's diagnostic system. It picks up the P1706 error code, which is linked to the park neutral position switch.
- Multimeter: This tool tests the park neutral position switch by checking electrical flow and resistance. It helps you see if the connected parts are working right.
- Nissan Service Manual: This book has diagrams and details for your car's model. It shows you how to check the park neutral position switch and understand the wiring.
With these tools, you can figure out if the P1706 code is due to a bad switch or electrical problem.
How to Fix P1706 Nissan Error Code – Step by Step
Step 1:
Verify the connection of the park neutral position (PNP) switch. Look for loose or corroded connectors, as these can trigger the P1706 error.
Tighten any loose connectors and replace those that are corroded.
Step 2:
Inspect the PNP switch itself for any visible wear or damage. If you find any, the switch will need to be replaced.
Step 3:
To replace the PNP switch, first disconnect the battery for safety.
Locate the PNP switch, typically found near the transmission.
Step 4:
Remove the switch's connecting harness, unscrew the retaining screws or bolts, and take out the old switch.
Install the new switch, reattach the harness, and secure it with screws or bolts.
Step 5:
Reconnect the battery, clear the error code using an OBD-II scanner, and start the engine.
Check if the error code reappears. If it does, further investigation into the transmission system may be required.
Always work safely and consult your vehicle's manual for specific instructions related to your model.
Common Diagnosis Mistakes
Avoid common mistakes when dealing with the P1706 Nissan code to save on repairs. Follow a careful, step-by-step process. Watch out for these errors:
- Check the Basics
- Look at simple things first. Check if the Park Neutral Position (PNP) switch works.
- Make sure all the wires and connectors are in good shape. A loose wire might seem like a bigger problem.
- Read All Trouble Codes
- Check all the codes in the car's computer.
- Don't just focus on P1706. Other codes might show a bigger electrical issue or a different problem.
- Know the Vehicle's History
- Look at past repairs before starting.
- Old repairs or changes can affect what's happening now. Past issues with the transmission or electrical systems might relate to the P1706 code you're seeing.
P1706 Nissan Repair Cost
Repair costs for fixing the P1706 code on a Nissan can be different based on a few things. These include the car model, how bad the damage is, and where you live.
Newer cars might cost more to repair because they've more complex electronics and parts can be harder to find. On the other hand, older cars might've cheaper parts, but fixing serious damage could take more time.
Parts can cost between $50 and $200. This depends on whether you choose original parts from the manufacturer or aftermarket parts.
Labor costs are less predictable. Mechanics usually charge $75 to $150 per hour. Fixing the P1706 error might take a few hours. So, you might spend $225 to $450 just on labor.
Where you live matters too. In big cities with high living costs, prices are often higher.
It's smart to get quotes from different repair shops to know what to expect. This helps you find a good mechanic with fair prices.
Related Error Codes on Nissan
Here's a simpler look at some error codes your Nissan might show related to transmission issues:
| Code | What It Means | What You Can Do |
|---|---|---|
| P0700 | Problem in Transmission Control System | Check wires, maybe replace TCM |
| P0720 | Problem with Output Speed Sensor | Change the output speed sensor |
| P0730 | Gear Ratio Not Right | Change transmission fluid, fix gears |
| P0740 | Trouble with Torque Converter | Look at the torque converter, replace if needed |
These codes point to the health of your car's transmission. P0700 usually indicates a bigger problem affecting the Transmission Control Module. P0720 and P0730 relate to how well the gears are working or being detected. P0740 focuses on the torque converter, which helps move power from the engine to the transmission. Address these issues to keep your Nissan running well.
Can I drive safely with P1706 Nissan?
If your Nissan shows a P1706 error, it's best not to drive it.
This code means there's a problem with a switch that helps the car start safely.
Driving with this issue can be risky, so get it checked by a mechanic soon.
People Also Ask
Is P1706 Specific Only to Nissan Vehicles?
The P1706 code is not just for Nissan cars. It can show up in other types of cars too. This code usually means there's a problem with a part that helps the car know which gear it's in, like the transmission range sensor.
How Often Does the P1706 Error Typically Occur?
The P1706 error doesn't happen a lot. It can show up sometimes if there's a problem with the car's parts not lining up right or if there's an electrical issue. How often it happens depends on how you use and take care of your car.
Are There Preventive Measures for Avoiding P1706?
Keep your car healthy by checking the transmission and linkage often for any wear or damage. Also, make sure the electrical connections and sensors are working well. Regular maintenance helps prevent problems and keeps your car running smoothly.
Does Weather Affect the P1706 Error Occurrence?
Weather usually doesn't cause the P1706 error directly. But very hot or cold weather can affect car electronics, which might lead to this error in the transmission system. Watch for warning signs when the weather is extreme.
Can Aftermarket Accessories Trigger the P1706 Code?
Yes, aftermarket accessories can cause the P1706 code if they mess up the car's electrical parts or the way it changes gears. It's a good idea to make sure they fit well with your car before putting them in to avoid problems.