P0720 2000 Nissan Maxima Code – Output Shaft Speed Sensor Circuit

You're dealing with a P0720 error code on your 2000 Nissan Maxima, which highlights a problem in the output shaft speed sensor circuit. This fault disrupts the speed data that your vehicle's Engine Control Module (ECM) relies on, potentially leading to inaccuracies in your speedometer and issues with gear shifting. To address this, check for any damaged wires or connectors and consider replacing the faulty sensor to restore proper function. Commonly, the total cost of this repair ranges from $100 to $300. Additionally, ensure other related components like the Transmission Control Module aren't contributing to the issue. With a comprehensive approach, your car's performance will likely see significant improvement.

P0720 Nissan Code Meaning

The P0720 code for a Nissan Maxima indicates an Output Shaft Speed Sensor circuit issue, affecting speed data sent to the ECM.

Check the Vehicle Speed Sensor wiring and connectors for damage.

If intact, the sensor may need replacement to restore proper vehicle performance.

Error Code P0720 Symptoms

If your Nissan Maxima shows a P0720 code, you might notice these issues:

1. Speedometer Problems: The speedometer mightn't show the right speed. It could jump around or not work well, making it hard to tell how fast you're going.
2. Trouble Shifting Gears: The car mightn't switch gears smoothly. You might feel it shifting hard or taking a long time to change gears. This happens because the car's system isn't getting the right speed information.
3. Reduced Power: The car might feel slow or not accelerate well. This is because the engine isn't getting the right speed signals, so it can't adjust power properly.
4. Warning Lights On: The Check Engine Light will come on to show a problem with the speed system. The ABS light might also turn on, which could mean issues with stability and traction control.

Watch for these signs as they can affect your driving.

Causes of Nissan P0720 Fault Code

To fix the P0720 code in a Nissan Maxima, you need to know what's causing it. Here's a simple guide:

1. Vehicle Speed Sensor (VSS) Issue: The VSS mightn't be working right, so it can't send the right speed info to the car's main computer. This can mess up how the car runs.
2. Wiring Problems: If the wires or connectors for the VSS are damaged or rusty, the sensor can't send signals properly. This is a big reason for the P0720 code.
3. Transmission Control Module (TCM) Faults: The TCM needs the right data from the VSS to work well. If it gets bad info because of a VSS problem, the P0720 code can show up.
4. Physical Damage to VSS: Things like road debris or hits can break the VSS. If it's broken, it can't send signals, causing the code to appear.

Checking these areas can help get your car back to normal and clear the P0720 code.

Tools Needed to Diagnose

To figure out what's going on with the P0720 code on your 2000 Nissan Maxima, you'll need some tools. These will help you check the car's electronic system without making things worse. Here's what to gather:

1. OBD-II Scan Tool: This gadget helps you read the car's computer codes. It shows real-time data from the output shaft speed sensor to see if there's a problem.
2. Multimeter: Use this to check voltage and resistance in the vehicle speed sensor circuit. It helps find electrical problems like short circuits or broken wires.
3. Wiring Diagram for 2000 Nissan Maxima: This diagram helps trace the VSS circuit. It lets you check each connection and part of the circuit carefully.
4. Basic Hand Tools and Visual Inspection Mirror: Tools like sockets and wrenches help you get to and look at the VSS. A mirror is useful for checking areas that are hard to see for signs of damage.

How to Fix P0720 Nissan Error Code – Step by Step

Step 1:

Locate the Vehicle Speed Sensor (VSS) on your 2000 Nissan Maxima. It's typically found on the transmission or differential housing. Start by visually inspecting the sensor and its surroundings for any visible damage, such as cracks or chips.

Step 2:

Examine the wiring and connectors leading to the VSS. Check for signs of wear, corrosion, or loose connections, as these may disrupt the signal. Ensure all connections are secure and clean to maintain proper signal integrity.

Step 3:

If the VSS is found to be faulty, carefully remove the defective sensor. Take care to avoid damaging any surrounding wires and components. Replace it with a new sensor, ensuring it's properly aligned and securely fastened.

Step 4:

Once the new VSS is installed, use a scan tool to clear the Diagnostic Trouble Code (DTC) from your vehicle's computer. This step is crucial for resetting the system and preparing the vehicle for a test.

Step 5:

Take your car for a test drive to monitor its performance and confirm that the error code doesn't reappear. If the P0720 code persists, it may suggest a deeper issue within the transmission control module or further wiring complications, which may require additional diagnostics.

Common Diagnosis Mistakes

When dealing with a P0720 error code on your Nissan Maxima, be careful to avoid these common mistakes:

1. Quick Decisions: Sometimes, people replace the Vehicle Speed Sensor (VSS) without checking the wiring first. This can lead to spending more money and not fixing the real issue. Always check the wires before replacing parts.
2. Overlooking the TCM: Problems with the Transmission Control Module (TCM) can look like a bad VSS. If you don't check the TCM and its connections, you might think the problem is something else.
3. Skipping Visual Checks: Just looking at the VSS can show problems like cracks or dirt. Missing this step might mean you overlook a simple fix.
4. Ignoring Ground Connections: Bad ground connections can cause wrong sensor readings, similar to a bad VSS. Check these connections to make sure you find the right problem.

P0720 Nissan Repair Cost

Fixing a P0720 error on your 2000 Nissan Maxima usually costs between $100 and $300. This includes both parts and labor for replacing the Vehicle Speed Sensor. If there are other issues like bad wiring or a faulty transmission control module, costs can go up.

Mechanics charge by the hour, so labor costs can vary. Rates differ based on where you live and the garage's reputation. You might also need to pay for diagnostics before any repairs start. These fees usually range from $50 to $150. These checks help find the exact problem, so they're important, but they do add to the overall expense.

To avoid unexpected costs, get a few estimates. Check with both local mechanics and dealerships to compare prices and services.

Choose a trusted technician to avoid unnecessary repairs and ensure fair pricing. The cheapest option isn't always the best. It's about finding the right mix of cost, quality, and reliability when fixing your car.

Related Error Codes on Nissan

When your Nissan shows the P0720 code, you might also see other codes like P0721 and P0722. These point to problems with the Output Shaft Speed Sensor. This could mean there's a mechanical issue, or the sensor isn't working right.

Here's a simple list of related error codes:

Seeing several codes could mean there's a bigger transmission problem. It might be the transmission control module or wiring causing trouble with the Vehicle Speed Sensor. Using diagnostic tools can show if the P0720 code is alone or part of more issues. Don't just erase the P0720 code; check for any problems that might come back.

Can I drive safely with P0720 Nissan?

No, it's not safe to drive with the P0720 code in a Nissan.

This problem affects your car's speed sensor, which can make your speedometer wrong and cause the car to shift gears badly.

Fixing it quickly is important to avoid more damage.

People Also Ask

What Is the Function of the Output Shaft Speed Sensor?

The output shaft speed sensor in a car checks how fast the transmission's output shaft is spinning. It helps the car change gears smoothly and tells the speedometer the right speed. This makes driving safer and more comfortable.

How Often Should the Output Shaft Speed Sensor Be Replaced?

You don't need to change the output shaft speed sensor regularly. Replace it if your car's transmission acts funny or if the speedometer goes wild. Always check it when doing regular car check-ups to make sure everything is okay.

Can Aftermarket Sensors Affect Vehicle Performance?

Yes, aftermarket sensors can affect how your car works. They might not fit or work the same as original parts, which can cause wrong readings and problems. Make sure they are the right kind and good quality to keep your car running well.

Are There Any Recalls Related to the P0720 Code in Nissan Maxima?

No, there are no recalls for the P0720 code in Nissan Maxima. It's a good idea to check the NHTSA website often and fix any problems early, even if they aren't part of a recall.

Does Weather Affect the Output Shaft Speed Sensor's Functionality?

Yes, weather can change how well your output shaft speed sensor works. Rain, snow, and really hot or cold weather can hurt the wires and parts. This might make the sensor not work right because the connections can get loose or parts can break.