Nexpeak NX501 Review: Code Reader and OBD2 Scanner for Your Car

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Nexpeak NX501 is Nexpeak's latest product and claims to be the ultimate car reader. Nexpeak has been around for a while now. So they should know what they're doing when it comes to code readers and scanners. 

However,  does Nexpeak provide value with their product? In this Nexpeak NX501 review, we will find out if the Nexpeak NX501 is worth buying or not!




Most US automobiles from 1996 and after, including sedans, SUVs, light trucks, and 12V diesel, are compatible with the Nexpeak NX501 automobile diagnostic.

OBDII Protocol

KWP2000, ISO9141, J1850 VPW, J1850 PWM, and CAN


7.8" x 3.9" x 1.4"

Operating Voltage

9-18 Volts


English, Portuguese, Russian, Italian, Spanish, French, German


Nexpeak NX501
Nexpeak NX501


  • Monitors battery and shows the voltage
  • Reveals engine's flaws
  • Can print and update results
  • Easy to use and transport
  • Allows to read data precisely


  • Does not support lifetime update
  • Does not support ABS, SRS, oil reset, and service reset
  • Misleading manual

Features and Benefits

Enhanced Scanner

Professional Car Code Reader Nexpeak NX501 OBD2 scanner is an enhanced auto scanner that not only checks all engine-related fault codes. It also finds out what caused the check engine light to come on, turns off Malfunction Indicator Lamp (MIL). This OBD2 scanner locates terrible O2 sensors and monitors battery health status.

It will also remind you when the battery needs to be replaced. It's an excellent scan tool that allows you to assess whether your automobile requires repair and avoids unnecessary maintenance, saving you time and money.

Code Reader and Battery Monitor

OBD2 is fully functional as it reads and erases fault codes, obtains I/M readiness, and freeze frame data are among the ten modes of OBD2 diagnostic function. Advanced Onboard Monitoring, Auto VIN acquisition, O2 Sensor and EVAP Test (Mode 8), and Unique graphical formats to display absolute sensor data (Mode 6).

This auto code reader can not only show what fault codes your vehicle is emitting. It can also monitor the battery voltage at all times during OBD car diagnostics and alert you when your battery is getting old.


This NX501 OBD2 car computer reader performs all diagnostics using a 2.8-inch LCD screen, a user-friendly UI design, and an STM-32 main chip. It can access OBD2 car diagnostics, DTC lookup, and review 2-3 times faster than other car diagnostic scanners.

You won't need to read the handbook since the revolutionary design soft silicone keypad with red-yellow-green LEDs indications will allow you to enjoy car diagnostics just like the professionals.

Updates & Warranty

The NX501 OBD2 code scanner comes with free intelligent update service. You can keep diagnostic data on the built-in memory card and upload it to PCs for printing (for Windows ONLY). 

A free carry case is included with the NX501 bundle. It's an essential tool for you and your family to have. You may want to consider this fantastic OBD2 scanner as a present for your father or husband during Father’s Day.

NX501 Exclusive UI Design Interface

The Nexpeak NX501 scanner's most important feature is the UI design interface. You will be able to read the graphic depiction. It has a 2.8-inch screen that is easy to see and includes an extra-long cable that allows for more flexibility in engine diagnosis. 

The NX501 is also enhanced by the soft silicone anti-shock and anti-slip material. So you'll be able to easily plug the auto diagnostic tool into your car's OBD2 port and start the engine. The engine problems will then be displayed by the scan tool, and you will be able to resolve the issue. 

The capacity of the exclusive UI design interface to provide a brilliant outlook on numeric and graphic display is its strength.  You can navigate through the engine using the screen and the extra-long cord. You can choose an interface language that you are more comfortable with for a more natural display interpretation.

Language is a significant flaw in the unit's user interface design as it can be inaccessible if the user does not speak a second language that the scanner recognizes.

Nexpeak NX501 UI Software

The automobile scanner stands out because of the latest UI software. The software algorithm enhances the user interface. The feature increases the diagnostic ability of the Nexpeak NX501 by three times among the competing automobile scanners.

You can read and remove engine codes with the new program. The software makes it simple for you to present the engine code definitions and a detailed caption demonstrates the strength. New users might not be able to operate the machine if it’s not for the UI software. 

The unit provides code definitions for natural display interpretation. Users having different kinds than those supported by the machine are at a disadvantage because of this feature. It is most effective with gas and engine cars.

Nexpeak NX501 Lifetime Updates and Data Printing

Nexpeak understands that car owners' needs are constantly evolving. If the auto scanner is not updated, it may not be a worthwhile purchase. The NX501 enables automatic software updates on your PC. 

All you need is a reliable internet connection to get started. Go to the manufacturer's website and look for the most recent update. Install the apps on your computer after downloading them. 

To update the software, turn on the automobile scan equipment and connect it to the PC. The feature adds to its strength because it allows you to print different statuses to refer to in the future. Since the moment of purchase, the device has allowed you to keep track of the engine's condition.

The unit's failure to support the MAC system is a severe flaw. If you don't have a stable internet connection, it could not be helpful. Data printing necessitates the use of additional devices, which could be costly.

Nexpeak NX501 FAQs

1. What is the difference between a code reader and a scan tool?

Car diagnostic scanners include both a code reader and a scan tool. Code readers can read and clear codes from any vehicle with an OBD2 port. Scan tools can display data, include a knowledge database with access to manufacturer-specific codes, and can be customized.

2. What is the difference between OBD1 and OBD2?

Manufacturer-specific OBD1 scanners were available. Many manufacturers use the same codes and protocols for OBD2 scanners. This effectively means that a single scanner can now obtain all of the data required for many vehicles.

3. How do I know if an OBD2 car code reader will work on my car?

In 1996, OBD2 was mandated across the board in all automobiles. Remember that certain manufacturers waited longer to integrate the technology than others, so some 1996 models may be compatible while others may not. Meanwhile, OBD2scanners should function on anything made after 1996.

4. Is it challenging to use an auto diagnostic tool?

It depends on the complexity of the unit you select. The majority of diagnostic scan tools are "plug-and-play." This means you attach the OBD2 connector to the vehicle's port, typically beneath the steering column, crank the key to turn on the tool, enter any necessary vehicle information. 

The first setup may require the vehicle's VIN, push scan, and let it do the rest. If the scanner does produce codes, you must first validate the codes using the handbook before attempting to repair them. This is why, if your car has one, you should always travel with it, whether it's in the glove compartment or somewhere else in the car.


Nexpeak NX501 will allow you to navigate through your car engine and identify the problem. The functions of the Nexpeak NX501 outweigh the price. If you own a good car, you should make a point of purchasing this car scan tool and how to use an OBD2 scan tool as it will help you identify the engine challenges in good time. 

This is a must-have tool for car owners as you can check the engine light and assess the battery health status. Do you find this article helpful? Please share this with your friends to help them analyze if Nexpeak NX501 is worth it.