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NEXPEAK

NEXPEAK NX501 OBD2 Scanner Enhanced Code Reader for All Post-1996 Vehicles

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Availability: Only 5 left in stock, order soon!
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Arrives Sunday, Oct 18
Order within 18 hours and 31 minutes
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Features

  • Professional Car Code Reader NEXPEAK NX501 obd2 scanner is an enhanced auto scanner that you can not only check all engine related fault codes, find out what caused the check engine light comes on, turn-off Malfunction Indicator Lamp (MIL), locate bad O2 sensor, but also can monitor car battery health status, remind you when the battery need to be replaced. Its a perfect scan tool helps you to determine if your car need to be repaired and avoid blind maintenance, saves your time and money.
  • Wide Array of Compatibility Accurately read and erase error codes on all OBD2 protocol vehicles with a 16 PIN interface (KWP2000, ISO9141, J1850 VPW, J1850 PWM and CAN). The NEXPEAK NX501 automobile diagnostic is compatible with most US vehicles that are model year 1996 or later including sedans, SUVs, light trucks, and 12V diesels. This is a plug-and-play engine diagnostic code reader (both generic and manufacturer specific codes) no extra batteries or apps required.
  • Not Only Full OBD2 Function All 10 modes OBD2 diagnostic function including: read and erase fault codes, retrieve I/M readiness and freeze frame data. Unique graphical forms to display live sensor data, Auto VIN acquisition, O2 Sensor and EVAP Test (Mode 8), Advanced On-board Monitoring (Mode 6). This auto code reader can not only reveal what error codes your car is producing, but also monitor the battery voltage at all time during OBD car diagnostic, reminds you when having an aging battery.
  • BEST Stability and PerformanceThis NX501 OBD2 car computer reader does all diagnosis via 2.8 color LCD screen, features with user-friendly UI design and STM-32 main chip, this diagnostic code scanner can access OBDII car diagnostics, DTC Lookup and Review 2-3 times faster than other car diagnostic scanners. With patented design soft silicone keypad and Red-Yellow-Green LEDs indicators, you dont even need to read the manual and will enjoy the car diagnostics just as the professionals.
  • Warranty & Update The NX501 OBD2 code scanner supports life-time free smart update service, Built-in memory card allows you to store diagnostic data and upload to computers for printing (for Windows ONLY). The NX501 package comes with a free carry case Its a must have tool for you and your family.
  • Great Gift for Father As the father's day comming, you can choose this wonderful obd2 scanner for your father or your husband as a superise present.

Description

The NEXPEAK NX501 engine analyzer is an Enhanced model fault code reader designed for Engine system, featuring FULL 10 OBDII Modes diagnostic function in check all engine related trouble codes from Vehicle ECU (Electronic Control Unit), such as Emission Control, Oxygen (O2) Senor, Evaporative Emission Canister Purge Valve (EVAP) etc. The NX501 car computer reader will read the faults which caused the check engine light comes on and tells you what’s wrong, it will guide you through fixing your car, erase trouble codes and turn off check engine light. Also, NEXPEAK NX501 engine light scanner will help you to know what the real problem is before taking the car to workshops, avoid blind maintenance. NOTE: This NEXPEAK NX501 CAN NOT work on Hybrid and Electric cars Excellent Performance: The NX501 code reader's diagnostic speed is 2-3 times faster than other obd2 scanner with newest optimization algorithm in industry, user-friendly diagnostic interface and best STM-32 main chip set, read the results in seconds and quickly understand what’s happening to your car. 2.8'' True Color LCD Screen: This NEXPEAK NX501 scanner for car does all diagnosis via 2.8'' large and high definition true color DTC display, you can read the diagnostic results on the screen directly. With its high resolution and data transmission speed, you can pickup the smallest changes for your car live parameters, allows you to go deeper diagnostic analyses. Data Review: The NX501 car code reader records not only the live data stream (PIDs), but also freeze data and trouble codes, helps you to diagnose the root cause of engine failure. If you can’t fix it, you may save the faulty data and consult your dealer or friends for help without taking the car to the shops, save your time and money! Update mode: Press and hold any button of this scanner before connecting to PC with USB cable, the screen will light up and shows ‘UPDATE MODE’, hit the “Check Update” on apps which can be found from official website, then follow the instructions to go. Lifetime free charge for NX501 update service.Print diagnostic report : connect the NX501 car scanner to the PC directly, and select the stored data on scanner and upload to computer, data editable before printing out from PC. Get yourself a full diagnostic report for your car!Please Note: Update and printing function can only be used on Windows OS, CAN NOT be updated on MAC SYSTEM. Best STM-32 Main Chip 2.8'' Lager Color Screen Data Review Lifetime Free Update Online 4 graphic live data are displayed in a time-based chart to help customers to better analyze the abnormal sensor parameter. O2 Sensor Test –accurately identifies failures of Oxygen sensor and vehicle emissions related errors. On-Board Monitor Test – This function can be utilized to read the results of on-board diagnostic monitoring tests for specific components. Check the emission status anytime and anywhere, Have Your Vehicle Inspected before the Annual Emissions Test (SMOG Check). Monitor Real-time Battery status, Displays the Voltage <10.8V Before Starting- Too Low, change battery, or may be unable to start. 10.8V-11.8V Before Starting- Slightly Low, difficult to start, please turn off other electronics and start to charge. 11.8V-12.8V Before Starting- Normal. 12.8V-13.2V After Starting- Too Low, might be unable to charge the battery, please check other electrical load. 13.2V-14.8V After Starting- Normal. >14.8V After Starting- Too High, may damage the battery, please check the engine stabilizer. *Readings may have ± 0.1 V deviation. 1) Innovative 2.8’’ colorful LCD screen OBD Scanner: perform the full engine diagnosis and battery analysis for your car. 2) Portable Nylon Carry Case: easily carry /store the NX501 car diagnostic scanner. 3) User's Manual: detailed instruction with step by step guidelines. 4) Extra Long 5ft OBDII Diagnostic Cable: allows you to freely diagnose even out of vehicle. 5) USB cable: for upload data to computer and update the obd2 reader.

Brand: NEXPEAK


Power Source: Battery Powered


Operating System: Windows XP


Screen Size: 2.8 inches


Item Highlight: Professional OBD2 scanner reads/clears engine codes, monitors battery, 10 modes & live data on color screen，plug and play See more


Brand Name: NEXPEAK


Unit Count: 1 Count


UPC: 682698326824


Number of Items: 1


Global Trade Identification Number: 24


Manufacturer: NEXPEAK


Included Components: Carry Case, Gift Type Retail Box, Mini-USB cable, NX501 OBD2 scanner, OBD2 User Manual, OBDII Extension Cable


Item Type Name: with Battery Test Function, 2.8" Car Diagnostic Scan Tool Vehicle Check Engine Light Analyzer


Item Weight: 1.5 pounds


Model Number: OBD2 Scanner


Manufacturer Part Number: NX501


Manufacturer Warranty Description: 3 Years Manufacturer


Power Source: Battery Powered


Operating System: Windows XP


Screen Size: 2.8 inches


Native Resolution: unknow


Item Highlight: Professional OBD2 scanner reads/clears engine codes, monitors battery, 10 modes & live data on color screen，plug and play


Part Interchange Info: NX501


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Oct 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • A must have convenient tool
A must have product to save a lot of money and easy to use
Reviewed in the United States on August 29, 2026 by Alphonso King
    • Durable, portable, reliable OBD2 code reader.
I self-inflicted some problem into my old one after several years of regular use and chose to replace it with the same model. It really is a durable device, internally and externally. I like the portable and simple user interface to monitor/reset diagnostic trouble codes, as well as monitor I/M readiness for emissions testing. Affordable test tool and fast delivery from Amazon… a good deal. ... show more
Reviewed in the United States on June 6, 2026 by Bret Holmes
    • Good enhanced code reader / scanner
Review Image by brian
Review Image by brian
Review Image by brian
Review Image by brian
Review Image by brian
Review Image by brian
Review Image by brian
This code reader is a replacement for an older Actron CP9135. Although there is nothing wrong with my old scanner, it is not updatable, does not provide live data or save and record data and codes, etc., it just reads the code and description and can erase them, nothing more. This is a nice upgrade to that, and costs a little less than my old one when it was new. I used it to diagnose a check engine light right away and found 2 codes. It was easy to connect, read the codes and define them, and I was able to store them to access at my computer. When I got to my laptop, I do not use a Windows system so the software for the tool is not compatible here. But regardless of that, I was able to still connect via USB, which powered on the device, and I could then view the saved codes. As minor as it seems, this is much easier and convenient than using a piece of paper and writing them down. Another nice feature that my old handheld scanner does not have is the ability to check the emission status. There are some extra features like viewing live data to help diagnose problems. This data could be hard to understand for some, but it is there as an added feature as you are still provided the code(s) and descriptions of the issues reported. The software is available for Windows only. I tried to run this on Linux using Wine without success. I can install it and run it, but it fails to recognize the scanner via the USB connection. It is not specified as able to run on Linux, so this is not a problem, just an observation. The directions reference a "power" and an "enter" button which do not exist on this scanner. The enter button is easily equated to the OK button. The power button however is just non existent. The power is turned on and off by plugging in and unplugging the unit either by its OBDII port or its USB port. I did perform an update before using. I have updated many different types of devices, firmware, etc before and this was quite simple compared to most. I ran the software on a Windows 10 Pro laptop and the install of software and update ran smoothly. At one point the directions were somewhat unclear. To get the scanner in update mode, you need to just press any button and plug it into the USB while the button is held down. Release the button once it enters update mode, which is almost right away. This scanner does not work with other systems like airbags, ABS, service intervals, etc., which is stated in the product description. If you need a scanner for the engine system to read and diagnose check engine lights, this should do most all of what is needed, even for non mechanics, with ease. ... show more
Reviewed in the United States on November 18, 2018 by brian
    • This One Works. Easy To Use Too!!
I bought this one after climbing the ladder from $12 Bluetooth phone device, then spent $10 more for cheap one with a screen (it went back), then $10 more for a better one that did not do the job (it went back too). Then a few bucks more and WOW this is worth it. This is the sweet spot. LED green, yellow and red readouts give immediate status of the car. I really really appreciate the immediate feedback I cannot misinterpret. Thanks. Under the LED readout, a large bright screen gives quick access the the details of the system diagnostics. Very, very happy that this unit connected with my Chyrsler Pacifica the others could not read and my Chevy Venture which this unit correctly and easily diagnosed. The other units gave me confusing readouts for my van that caused me to waste time and money. Not with this Nexpeak NX501. This unit was way bigger and way better than all my previous money and time wasting experiments. This is a large unit that feels solid, substantial and heavy duty. Comes with a very nice canvas zipper case that keeps the unit, connection cord and mini-USB (for connection to computer for updating and printout if desired). After connecting and installing software downloaded from Nexpeak website I confirmed that the unit I received was up to date. Nice. I am happy. This is not one of those little cheap little calculator size units, this one is maybe the size of an average womans shoe, but the construction, bright screeen, sophisticated electronics and ease of operation is GREAT! I used this before I even read the manual and had no trouble. To read the manual completely I will have to learn at least three or four more languages...but till I do...I am happy and getting all the results I need to confirm that my Pacifica is ready for its annual checkup and the Van needs some fixing. That's why I am keeping this one and happy I sent the cheaper units back. My advice is start with this one...I don't think ordinary people like me could need anything more. ... show more
Reviewed in the United States on July 25, 2020 by Amazon Customer
    • Easy to use.
Works excellent
Reviewed in the United States on July 15, 2026 by DakotaA Harbert
    • Standalone unit, no need for an app or batteries. One unique feature.
I got this scanner for one main reason: the EVAP test function. If your car supports it, this unit can force it to run the EVAP emission check, which is one of the most stubborn tests to get a car to run. If you've replaced your car battery or reset your OBD trouble codes for one reason or another, you would have to wait for all the emissions-readiness tests to run before you could take a smog test. I was in this situation and have run the car for 50 miles, doing the "drive cycle" to get the tests to run. After the cycle, all the tests were completed except for the EVAP check. I've heard of people driving 200 miles and still not getting it to run. In a situation like this, this unit is worth its price. The other advantage of this unit is that it is standalone: you don't need to download an app and connect your phone to it, unlike other scanners. It has a built-in screen, button controls, and software that has all the functions of other apps and then some. It also doesn't require batteries, since it draws power from the OBD port itself. Believe me, if you have to scan your car more than once a month, this ritual of connecting an app gets annoying. A helpful tip: Do not leave this or any scanner plugged into your car. It might drain the battery if left connected long enough. Another cool feature is "View Data Stream". It shows a real-time graph of engine parameters. You can also download data to your PC using an included USB cable. As to build quality, it feels very solidly built and durable, with thick rubberized padding all around. The cable is also reassuringly tough. It also comes in a nice, quality nylon case. The only improvement I could suggest would be to make the software a little bit faster, but that's a minor gripe and could be addressed by a software update (yes this unit's software can be updated). This one is definitely going to remain in the car. ... show more
Reviewed in the United States on November 25, 2018 by emsaints
    • Very Compact. Very good product. Learned to use in 2 minutes. Solved problem in 1 minute!!!
Very nice tool to have. When your check engine light comes on, it's nice to have a code reader in your toolbox instead of driving all over town to find an AutoZone or O'Reilly's to have them read the codes for you. One thing I did learn after buying this and using it myself. If you plug it in and the screen stays black, check your cigarette lighter fuse. Apparently that can cause the plug that the OBDII fits into not to have power. I almost sent this back, until I realized it wasn't the machine that was bad, but a cigarette lighter fuse burned out causing the OBDII not to come on. Anyway, the OM126P gives you all the codes that can cause problems with your vehicle and shows whether the part is already gone or it's pending. Still learning what all it can do and what each screen means. This also gives you diagnostics and graphs out feedback. Worth the money, especially on older model cars (with computers) like mine that have a check engine light pop up at least once or twice a year (it seems). OM126P will save me money in the long run, because I will be able to diagnose and repair my car without having to take it to a professional mechanic. With this you can find the codes, research what is causing them and if you're so inclined, fix the problem yourself. I really like that this reader gives a description of the code and not just the code itself. For anybody that likes fixing their own stuff, OM126P is a must have for your toolbox. ... show more
Reviewed in the United States on September 12, 2019 by Joseph
    • The NexPeak NX501 Scanner is easy to use and very well made
Easy to use Scanner After reviewing the OB2 Scanners, I decided on the NexPeak NX501 and I am not disappointed. I expect that I will only use the device on an occaision now and then. I consider myself a shade tree type mechanic that only works on vehicles when the mood hits me. I found that the scanner was well packaged and came with a very nice storage bag. I consider the unit well designed and the connectors are very well made. The device is a quality piece of equipment. I found the manual and the quick start instructions to be clear and easy to follow. After reading throught the manual, the next thing I did was log on to the NexPeak website and download the Windows App "UPLINLK" for the NX501 Model and then update the scanner software. The App checked the software and reported that the software was at the latest version. Before receiving my scanner, a local repair facility determined my wife's 2011 Ford Fusion SEL 3.0 had a P1450 code that was most likley caused by a faulty Canister Purge Valve Solenoid. The Garage estimated the charge would be $130 -150 but they did not clear the code. I decided this was a good opportunity to get another tool, so I ordered the scanner. After connecting the scanner, the scanner reported that I indeed had a P1450 code. I replaced the purge valve solenoid and then used the tool to clear the code and then monitor the emissions system to confirm that the repair was complete. Very cool little tool. I am pleased that I was able to save $40-50 AND Repair the car plus have a tool for future use. WIN-WIN! I would recommend this tool and would repurchase if I had it to over again. BTW, I did not need to use tech support, so I cannot offer any insite in that regard. ... show more
Reviewed in the United States on January 13, 2020 by MLG

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