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AL400 OBD2 Scanner, Full OBDII Code Reader, Check Engine Light Scan Tool, Car Scanner with DTC Lookup, Clear Codes, Freeze Frame, One-Click I/M, Diagnostic Scanner for DIYers, Lifetime Update

  • Based on 442 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Aug 8
Order within 16 hours and 57 minutes
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Features

  • 2024 Newest Code reader, Wide vehicle coverage, DTC LookupThe TOPDON ArtiLink400 scan tool works for most 1996 and newer vehicles that follow KWP2000, ISO9141, J1850 VPW, J1850 PWM, and CAN protocols, including passenger cars, light trucks, SUVs, etc. The simple design and easy-to-use features allow anyone to easily fix emission-related issues common in cars that are three or more years old. Its DTC library base helps users find DTCs definitions with ease.
  • Professional check engine scanner, 10 OBDII FunctionsThis code reader helps you run emission tests such as I/M readiness, EVAP, O2 sensor, catalyst monitor, misfire monitor, and many others. These tests not only help cars pass smog tests but also make cars more fuel-efficient, improving performance. The AL400 has a DTC code results menu with LED lights that can quickly identify vehicle's health status. Redpermanent DTC, Yellowpending DTC code, Greenno DTC fault code.
  • User-Oriented Diagnostic scanner, Free lifetime updatesThis scan tool is backed by the TOPDON promise for free lifetime updates to keep your software current. The 2.4' color screen is bright enough to work in a dark garage or in sunlight. The buttons are arranged so you can easily navigate through the menus.
  • 7 Languages supported, 24/7 customer supportThis OBD2 scanner is multilingual, providing both menu and DTC definitions in seven different languages: English, French, German, Spanish, Portuguese, Japanese, and Italian, and has 12 months extended quality backup. For any issues you may have before or after the purchase, email us : . Can also call us directly: US phone service Monday-Friday 9:00AM-6PM Eastern Time.

Brand: TOPDON


Product Dimensions: 2.95"L x 0.96"W x 5.67"H


Language: English


Display resolution: 240*320


Brand: ‎TOPDON


Product Dimensions: ‎2.95"L x 0.96"W x 5.67"H


Language: ‎English


Display resolution: ‎240*320


Manufacturer: ‎TT TOPDON


Model: ‎TOPDON AL400-US


Item Weight: ‎7.8 ounces


Item model number: ‎AL400


Batteries: ‎1 Lithium Ion batteries required. (included)


Manufacturer Part Number: ‎ArtiLink400


Special Features: ‎‎Reads and displays DTCs, Erases DTCs, Reads and displays VIN, Resets and turns off the check engine light (MIL), I/M readiness, Freeze frame, O2 Sensor Test, EVAP Test, on-board diagnostic monitoring test, DTC lookup, Quickly read and clear generic codes (P0, P2, P3, and U0) and manufacturer code(P1,P3, U1), 5 Button Design&2.4 Inch Color Display, Free update via Computer


Date First Available: December 20, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Aug 8

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Incredible value, shows lots of data, handy built-in flashlight
This is far more than a standard cheap code reader, but for the same price! This tool does things that tools costing double don't do. Pictures are from a scan of a 2019 Honda Civic. The tool reads and clears codes, of course. But it also shows your readiness state, meaning you'll know whether or not the car is ready to pass an emissions inspection. I was amazed at the data I could read with this tool! Coolant temperature, throttle position, engine load, engine RPM, vehicle speed, system voltage, and how many miles it's been since the last time the check engine light came on. The cable feels well made and flexible, and is long enough to reach the passenger seat or go out the window and under the hood. Very handy if you want to monitor data while someone else is driving, or while you're working under the hood. One really nice touch is where the tool plugs into the car under the dash, Topdon has provided a small flashlight, which you can use to find the car's diagnostic port, even in the dark. ... show more
Reviewed in the United States on May 10, 2022 by Chris Luongo Chris Luongo

  • Don't know much about these, but seems to work beautifully.
I don't know a lot about these things -- not enough to really write a full detailed review -- but it seems to work great. I was able to pull codes on multiple vehicles with the device itself telling me what the codes meant on its screen rather than me having to look them up. You just don't get much more convenient than that. It's very easy to use and pretty much the only way you can go wrong in using it is if you do something wrong like plugging it in while the vehicle is running (which is a fault of the process rather than this device.) As they say, it is a bit slow about actually connecting and displaying information, but all in all I have no real complaints and can't imagine any of the alternatives being better. As the manufacturer says, you probably need a $3000 device if you want it to be faster. No thank you! It is worth noting that their management software just doesn't work. It gives an error every single time when trying to log in. I guess it can't connect to their server or something. This may be a problem if I ever need to actually update its firmware, but I think maybe it's possible to download updates anyway. I don't know if it's realistic to expect updates for this product in, say, ten years down the road anyway though and the mechanisms and processes of reading OBDII codes won't be changing much in that time period (if anything maybe we'll get an OBDIII that may not even be possible with devices like this by then. Who knows?) The firmware seems to consist of actual files that show up as a UMS drive when you plug it in, so updating is probably as simple as unzipping an archive right over it. I only wish it didn't use mini-USB as it's getting harder and harder even to find working mini-USB cables, but as far as nitpicks go, that's pretty minor -- especially since it even came with one anyway. For the price of this thing, if it stops working on newer vehicles in ten years I won't be losing any sleep over it. ... show more
Reviewed in the United States on November 18, 2022 by Joshua

  • Scan tool
Inexpensive scan tool, doesn't work on one of my vehicles (JDM Nissan Serena) updated the firmware still no luck, scanned a couple of my mazdas no errors so it does work. Screen is easy to read and functions doesn't have a steep learning curve. Great price, Good for a tool kit, but you may want to look for something better if you have or work on multiple vehicles. ... show more
Reviewed in the United States on May 13, 2022 by Ryan123

  • Great handheld scan tool
Very easy to use, the light on the DLC connector is very helpful. The scan tool itself is light weight and easy to navigate. I was impressed that is did have data streaming as well. It is a great tool for a hobbyist or even a professional shop to have on hand. Great tool and a great price.
Reviewed in the United States on April 20, 2022 by Betsy Pye

  • Great value
As a generic OBD2 scanner it does what it is supposed to do, no surprises here. What did surprise me was the quality of the cable, most of these tools come with a stiff cable that stays in the position it was shipped in. This tools comes with a nice pliable cable with decent length to it. As an added bonus it has an led light built into the connector which is surprisingly helpful when locating the OBD2 port. ... show more
Reviewed in the United States on April 15, 2022 by Ashley

  • Big bang for your buck
This Scan tool was so useful. The first time I used it I was so impressed with how accurate and easy it was to operate.
Reviewed in the United States on July 14, 2023 by Rachel B

  • Screen Frozen
Used on 3 different vehicles in less than a week. Seemed fine. Now every time I go to erase data code the screen freezes. Pretty neat
Reviewed in the United States on October 16, 2023 by Michael Weyer

  • Car engine code reader
The device works as indicated on vehicles. The description indicated check compatibility with your vehicle, based on the search engine provided, my vehicle was ... apparently this device is not compatible with all 2018 Hyundai Sonata Limited edition vehicles.
Reviewed in the United States on December 25, 2023 by M. Hugo

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