OBD2 Code Reader TOPDON AL400 OBD Scanner, Car Fault

OBD2 Code Reader TOPDON AL400 OBD Scanner

OBD2 Code Reader TOPDON AL400 OBD Scanner, Car Fault Diagnostic Tool with 10 OBD Functions- Check Engine Light/Smog Emission Test/O2 Sensor Test/EVAP, Free Lifetime Update


From the brand

obd2 scannerTC005-1TC005-3JS2000AL400TOPDONobd2 scannercar diagnostic tool

TOPDON TABLET DIAGNOSTIC TOOL



Weight: 221 g
Dimensions: 14.4 x 7.49 x 2.44 cm; 221.13 Grams
Brand: TT TOPDON
Model: TOPDON-AL400-UK
Batteries Included: 1 Lithium Ion batteries required. (included)
Manufacture: Topdon
Dimensions: 14.4 x 7.49 x 2.44 cm; 221.13 Grams

21 Responses

  1. Anonymous says:

     United Kingdom

    I bought this for my partner to try and work out what was wrong with our car. It read the codes perfectly and he found the fault. The device can delete existing error codes and livescan can show real time information. The device is OK for general use and is good value.

  2. KatieTripp says:

     United Kingdom

    This can save you a lot of money when buying a used car. Use it to see if these any faults with engine etc. Will save you a lot of headache. You can clear engine codes too if that’s something you’re looking at. However, this won’t find any faults with engine if the engine sign isn’t showing so if someone cleared engine sign and after you’ve put this in, it will show no fault codes found.

    5.0 out of 5 stars Must buy for used car buyers

  3. KennethAgaundo says:

     United Kingdom

    Worked well. I had a malfunction indicator light on and not knowing what the problem was, I purchased the scanner, and it told me it was the O2 sensor voltage low. I replaced the sensor and reset the fault using the scanner and issue seems sorted now.

  4. LeonardoBadgett says:

     United Kingdom

    Needed a fault code reader and ordered this having read other reviews, great bit of kit and feels good quality, I don’t think you could beat it for the price. Simple to use and like the addition of the torch in the connector. Can only recommend.

  5. Anonymous says:

     United Kingdom

    Every car or van owner should have one hasa handy light on obd end to see with easy too use and no hassle saved me paying expensive garage prices for a job i could do my self definitely buy from this brand again on other products in the range

  6. Anonymous says:

     United Kingdom

    Golden Review Award: 7 From Our UsersFor the money I am not sure this can be beaten. It had a great looking screen that is really easy to use and will scan most cars with an OBDII port ie anything from 1996 pretty much onwards . There are a ton of data streams available on here that normally don’t come at this price point and it scanned my Pathfinder no problem at all. This is perfect for leaving in the glove box (which is what I do) and a code gets thrown up when your away from home. You can work out if it’s serious (usually not) and if needed clear it so you can carry on. Little things like having a torch (pictured) inside the connection making it easy to plug in mean Topdon have been doing a great job of attention to detail. If your buying a car this is a no brainer purchase when you turn up you can check what codes are coming up and what has been cleared before you arrived. In short these scanners are getting better and better and I really like this , it’s a permanent fixture in the car now.

    5.0 out of 5 stars Essential tool for the price

  7. Anonymous says:

     United Kingdom

    Does not show all errors in fact on two cars it showed no errors when in face there was ?????

    04/08/22 Update

    After checking this Device I found it good for check emissions and clearing down them. The support TOPDON are fantastic and quick to help and resolve issues. The was myself unfortunately as i was thinking it would read know errors for all cars and my car was a specific codes from the manufacturer and could not be cleared down …… so all in all i will have to give 5 of 5 starts for the support and 5 of out 5 for device doing what it’s mint to do……

  8. MadonnaGoshorn says:

     United Kingdom

    Easy to use, just plug into OBD port, turn on the ignition, press a couple of buttons to read the error and a couple more to clear them. Great for troubleshooting. Saved the money spent on it right away over what it would have cost for a garage to do it. Cable long enough to use from passenger seat or to pass it out the window and use it from under the bonnet. Very happy with it.

    5.0 out of 5 stars Simple and easy to use ODB scan tool

  9. Anonymous says:

     United Kingdom

    It’s so easy to use as there is no set up just plug and play when you’re on the fly. Has helped a few cars find hidden faults and the led indicator at the bottom of the screen helps as well for a quick fault finding. Will recommend to other people who need a cheap and easy to use obd fault reade

  10. HenrietManton says:

     United Kingdom

    This is a great piece of kit. Easy to use and really helpful if you’re interested in your car or buying a used car.
    Had a small issue with my VW T5 which the local mechanic couldn’t resolve. Plugged this in and it immediately pinpointed the relay at fault.
    Also, if you’re buying a used car, just plug this in to make sure any future purchase has no hidden faults.
    Would highly recommend.

    5.0 out of 5 stars A must for anyone interested in their car.

  11. Anonymous says:

     United Kingdom

    This was so easy to use. Just plugged it in and pressed a couple of buttons and it bought up the error code that was causing the engine management light on my Skoda.
    Quick scroll through the options, the code was cleared and the engine light gone.
    Well worth the money as the garage wanted 50 just to plug it into there reader.
    I just googled the error code along with my model of car and the remedy to fix my cat was there. I just replaced one pipe and it was fixed.

    5.0 out of 5 stars Very easy to use

  12. Prakhar Khanna says:

     United Kingdom

    Excellent choice for the hobbyist.
    This is my second code reader and is a significant upgrade on my previous one despite costing less.
    One superb feature is that it has a light on the end of the cable, making it easy to locate and align with the vehicle port.
    I have 2 VW cars and was able to read the fault codes easily and reset service interval warnings no problem.
    My friend has a garage and tried the AL400 on a couple of vehicles for me from Ford and Mercedes. He liked the software and said that it performed well, but did not record some of the more obscure faults. I’m very pleased with my purchase, and it’s brilliant to be able to reset the dash warning lights myself

  13. RodArmytage says:

     United Kingdom

    I’ve used this for a couple of weeks now on various cars from vw, soda, BMW and more. Plug in and start the scan, it’ll tell you the codes and detailed fault. It also measures your 02 sensor and much more. I now use this as my go to tool for working on cars. All in all, for the price and usage of the product this is a purchase I highly recommend and glad that I did.

  14. Anonymous says:

     United Kingdom

    Golden Review Award: 4 From Our UsersTOPDON Code Reader AL400 is the upgrade version of AL200/AL300.This OBD2 scanner comes with variety of OBD2 functions, including reading & erasing DTCs/resetting monitors/live streaming in graphs/viewing freeze frame data, and many more features that would usually be found in an expensive diagnostic tool. Determine the cause of “Check Engine” lights/monitor the running components of the engine, and use freeze-frame technology to focus on a car’s trouble area.
    I replaced a sensor on my Campervan and used this to delete the DTC. It’s really straight forward to use and you can even use it in the dark due to the light built into the OBD plug. Comes with lifetime updates via a USB connection lead to connect to a computer so there’s no subscription to pay for which really appeals to me. This OBD2 reader is really easy to use, has loads of features, lifetime updates and a really great price!

    5.0 out of 5 stars A Great Code Reader, At A Great Price

  15. Jim Martin says:

     United Kingdom

    Golden Review Award: 3 From Our UsersI upgraded recently from the AL300. The 400 has a lot of features which are compatible with most modern cars, getting a diagnostics compatible with Volkswagon (VAG) often proves difficult. But with the AL400 it works great and has proven to be worth every penny.

    The colour screen is a good size, and clear. Easy to navigate through the options. I would highly recommend this product.

  16. MelissaHammons says:

     United Kingdom

    Golden Review Award: 4 From Our UsersI have wanted a new OBD2 scanner for a while as my old one fails to find many faults. The Artlink 400 arrived and I got straight to testing it on my VW Transporter (T5). At random times I will get the coil light flash on the dash board and a lack of acceleration, not full limp mode as I can get to 60mph. This doesn’t happen all the time but with the scanner I was able to see a fault code was logged for underboost. This gave me an idea of the area I need to be checking for boost leaks.

    Overall, a great piece of kit and very affordable.

    5.0 out of 5 stars Small but powerful!

  17. Emme Hall says:

     United Kingdom

    Golden Review Award: 3 From Our UsersThis is great for finding out fault codes on any make and model of car (providing it has diagnostics port which all modern cars have) it’s really easy to use with very good clear and simple to follow instructions and very minimal buttons it’s made well and is rechargeable too its great for finding out what’s faulty with you car before taking it to the garage for repair so you know exactly what to expect and that way your already one step ahead it also is a brilliant bit of kit if your buying used cars because you can take this with you to check the car for sale for any known faults on the cars computer so it could save you buying a complete money pit its a really great tool to have for car owner or buyer and I would strongly recommend buying one for the small price it could save you big in the longer term highly recommended

    5.0 out of 5 stars This is great for finding fault codes on any make of ca

  18. Anonymous says:

     United Kingdom

    This came about a week ago and has been used daily at my work. Does what it says on the box and fairly quick too. Easy to use and the live data reads perfectly. I would recommend this to someone who just needs to read and clear codes as well as doing live data feeds. Well worth the money, I’d be happy to pay more. Great company I will be investing in their other products too

    5.0 out of 5 stars Everything you need for a quick diagnostic

  19. SuzanneVDI says:

     United Kingdom

    I bought the Topdon ArtiLink 400 after comparing price and specifications with what I required. Turns out
    it was an excellent choice as using it on my car I’ve cleared the diagnostic trouble codes (DTC) that were
    there, these haven’t reappeared. It’s easy to use, updates can be downloaded from the Topdon website, and
    for the home enthusiastic user its recommended to keep on top of any existing and possible future problems.

    5.0 out of 5 stars Great piece of ki

  20. Anonymous says:

     United Kingdom

    I haven’t owned too many OBDs but this was very easy and simple to use. No problems with finding and erasing codes. Easy to do in dark as the OBD plug itself has a built in flashlight making it easy to plug in. Would strongly advise getting one especially for its price!!! You may come across this symbol “$83” but do not fear as it doesn’t charge you extra it merely is the coding. Again I would recommend for finding and erasing codes as it found them no problem. Good value for money and doesn’t feel cheap.

  21. Anonymous says:

     United Kingdom

    Golden Review Award: 2 From Our UsersToday I tried out my latest purchase the topdon al400 OBD scanner,
    Well this item did not disappoint used it on my insignia and found they it has a possible egr problem,
    I was very impressed with other information this device can show like oil temp fuel levels and can do smog test but that’s not compatible with my car. It also has the ability to look up fault codes all in all I would recommend this item feels good quality and looks smart.

    5.0 out of 5 stars Al400 obd scanner brilliant bit of ki