---
product_id: 429072391
title: "TOPDON OBD2 Code Reader AL400 OBD2 Scanner, Car Diagnostic Tool with 10 OBD Functions- Check Engine Light/Smog Emission Test/O2 Sensor Test/EVAP, Free Lifetime Update"
brand: "topdon"
price: "AR$219193"
currency: ARS
in_stock: true
reviews_count: 12
category: "Topdon"
url: https://www.desertcart.com.ar/products/429072391-topdon-obd2-code-reader-al400-obd2-scanner-car-diagnostic-tool
store_origin: AR
region: Argentina
---

# Supports 7 languages & global car protocols Free lifetime software updates 10 OBDII full diagnostic functions TOPDON OBD2 Code Reader AL400 OBD2 Scanner, Car Diagnostic Tool with 10 OBD Functions- Check Engine Light/Smog Emission Test/O2 Sensor Test/EVAP, Free Lifetime Update

**Brand:** topdon
**Price:** AR$219193
**Availability:** ✅ In Stock

## Summary

> 🚗 Unlock your car’s secrets with pro-level diagnostics in your pocket!

## Quick Answers

- **What is this?** TOPDON OBD2 Code Reader AL400 OBD2 Scanner, Car Diagnostic Tool with 10 OBD Functions- Check Engine Light/Smog Emission Test/O2 Sensor Test/EVAP, Free Lifetime Update by topdon
- **How much does it cost?** AR$219193 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/429072391-topdon-obd2-code-reader-al400-obd2-scanner-car-diagnostic-tool)

## Best For

- topdon enthusiasts

## Why This Product

- Trusted topdon brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Global Compatibility:** Works seamlessly on US, EU, and Asian vehicles from 1996 onwards.
- • **Portable & User-Friendly:** Compact design fits in your glove box—professional-grade diagnostics anywhere.
- • **Lifetime Updates & Support:** Stay ahead with free updates and 24/7 expert customer service.
- • **Vibrant 2.4" TFT Color Display:** Clear, backlit screen ensures easy reading even in low light.
- • **Comprehensive 10-in-1 Diagnostics:** Decode engine faults, O2 sensors, EVAP, and emissions with precision.

## Overview

The TOPDON AL400 is a mid-range OBD2 scanner offering 10 full diagnostic functions including engine code reading/clearing, O2 sensor and EVAP tests, and I/M readiness checks. Compatible with most US, EU, and Asian cars since 1996, it features a bright 2.4-inch color screen, supports 7 languages, and provides free lifetime software updates. Designed for both DIYers and professionals, it’s compact, easy to use, and backed by 24/7 customer support and a 24-month warranty.

## Description

Diagnose engine issues and pass emissions with this versatile OBD2 scanner that reads/clears codes, supports multiple protocols, and provides free lifetime updates.

Review: Worth it - Worked on both mine and Mrs car, easy to use and navigate menus, gave clear fault codes and the ability to erase, worth it Worked on 2003 pegeot and 2016 focus.
Review: easy to use with all the great functions all in one unit fantastic bit of kit - very nice unit with both OBD and bat tery tester, ive tried it on my range rover evoque, tho it had no problems,,,,,,ive tried it on my dads citroen c4 picasso as its been to garage they dont know what the fault is,,, so ive pluged in and used this to check the new battery wich has a fault and a obd code due to low prressure add blu,,,,, as im not a mechanic, im a electrician, we can take it to another garage and show them the print offs ive done from the topdon tester via laptop wich is brilliant to look back on,,,,, this is a lovely tester with built in codes you can read about the fault,,, comes in nice case there is a 3.5mm socket on the main lead you canthe functions plug in a 12v supply to power up the unit if you are checking through results and not pluged into car or laptop, this is very good,,,,,,,ive just got to lean all

## Features

- 10 OBDII full functions: The AL400 is TOPDON's mid-range full-featured OBDII code reader. Featuring built in DTC look up to help determine the cause of the engine light, ability to quickly read/clear generic codes (P0, P2, P3, and U0) and manufacturer specific codes (P1, P3, and U1), view freeze frame data, graph live data, O2 Sensor test, EVAP test (mode$8), one-touch I/M readiness button, obtain vehicle information, and identify basic vehicle issues.
- Industry leading coverage: The AL400 works on most most US-based cars since 1996, EU-based cars after 2000, and Asian-based cars after 2008. Compatible with J1850 PWM, J1850 VPW, ISO9141, KWP2000, and CAN protocols. Supports 7 languages: English, French, Spanish, German, Italian, Portuguese, and Japanese.
- User friendly: Compact design makes it easy to store in your toolbox or glove compartment. The easy to read 2.4 inch TFT backlit color screen displays the test results, even in the dark conditions. Free lifetime updates can be performed by connecting to a computer to maintain coverage.
- Used by professionals & DIYers：DIYers can use the AL400 to check their vehicles at any time a problem arises. Professional technicians can easily carry the AL400 to roadside assistance and home service jobs. Small repair shops can save money over expensive diagnostic tools because the AL400 can solve car engine system related problems.
- Excellent customer service：We offer a comprehensive before-you-buy service. You can consult us at any time and we will provide purchase advice according to your needs. We will provide you with user manuals and quick start guides to get you started. We have an industry leading return and replacement policy and a 24 month warranty. You can contact our team at any time if you have questions during use, and we provide support online 24/7.
- Important: Not all models are compatible with the AL400. Before purchasing AL400, please consult our website to ensure that our products are suitable for your car. If you have any concerns or questions, please feel free to contact us via 📧support@topdon.com📧. To check compatibility, please provide the VIN and the functions you need.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09XD1FGWM |
| Batteries | 1 Lithium Polymer batteries required. |
| Best Sellers Rank | 9,173 in Automotive ( See Top 100 in Automotive ) 100 in OBD-II Engine System Diagnostic Tools |
| Brand | TOPDON |
| Customer Reviews | 4.2 4.2 out of 5 stars (2,190) |
| Date First Available | 7 April 2022 |
| Item Weight | 410 g |
| Item model number | AL400 |
| Manufacturer | TOPDON |
| Manufacturer part number | AL400 |
| Model | AL300/400/500B |
| Product Dimensions | 7.9 x 2.43 x 14.7 cm; 410 g |

## Product Details

- **Brand:** TOPDON
- **Global Trade Identification Number:** 00850028162569
- **Manufacturer:** TOPDON
- **Operating system:** Android 4.0
- **Power source:** Corded Electric
- **Product dimensions:** 7.9L x 2.4W x 14.7H centimetres
- **Screen size:** 2.4 Inches
- **UPC:** 850028162569

## Images

![TOPDON OBD2 Code Reader AL400 OBD2 Scanner, Car Diagnostic Tool with 10 OBD Functions- Check Engine Light/Smog Emission Test/O2 Sensor Test/EVAP, Free Lifetime Update - Image 1](https://m.media-amazon.com/images/I/717EYNPQcaL.jpg)
![TOPDON OBD2 Code Reader AL400 OBD2 Scanner, Car Diagnostic Tool with 10 OBD Functions- Check Engine Light/Smog Emission Test/O2 Sensor Test/EVAP, Free Lifetime Update - Image 2](https://m.media-amazon.com/images/I/718pJK6ZEiL.jpg)
![TOPDON OBD2 Code Reader AL400 OBD2 Scanner, Car Diagnostic Tool with 10 OBD Functions- Check Engine Light/Smog Emission Test/O2 Sensor Test/EVAP, Free Lifetime Update - Image 3](https://m.media-amazon.com/images/I/71H0GngYOPL.jpg)
![TOPDON OBD2 Code Reader AL400 OBD2 Scanner, Car Diagnostic Tool with 10 OBD Functions- Check Engine Light/Smog Emission Test/O2 Sensor Test/EVAP, Free Lifetime Update - Image 4](https://m.media-amazon.com/images/I/71R+zEhVcCL.jpg)
![TOPDON OBD2 Code Reader AL400 OBD2 Scanner, Car Diagnostic Tool with 10 OBD Functions- Check Engine Light/Smog Emission Test/O2 Sensor Test/EVAP, Free Lifetime Update - Image 5](https://m.media-amazon.com/images/I/71TCN3oLMIL.jpg)

## Questions & Answers

**Q: Will this work for kia Sportage 2008 diesel**
A: Yes, to at least pull EOBD codes.

**Q: I have this 400 reader, my mate asked me if it would work on his Volvo Grab lorry?**
A: Hello, TOPDON AL400 will read/clear the error code of the emission system on the diesel car after 2004 and the petrol car after 2001. You can judge by yourself according to whether your car supports OBD2/EOBD protocol and has an obd2 16 pin data connector. Any other questions, feel free to contact us at support@topdon.com.

**Q: Is this device suitable for a suzuki swift 2017**
A: Hi, thank you for your question. This TOPDON auto scanner AL400 is suitable for your car model, please note, this device can only diagnose emission systems. Any further questions, welcome to contact us.

**Q: Does it support isuzu npr300 2009？**
A: Yes, TOPDON AL400 supports ISUZU NPR300 2009. If you have any further questions, please contact us: support@topdon.com

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worth it
*by K***N on 28 November 2025*

Worked on both mine and Mrs car, easy to use and navigate menus, gave clear fault codes and the ability to erase, worth it Worked on 2003 pegeot and 2016 focus.

### ⭐⭐⭐⭐⭐ easy to use with all the great functions all in one unit fantastic bit of kit
*by A***. on 8 April 2025*

very nice unit with both OBD and bat tery tester, ive tried it on my range rover evoque, tho it had no problems,,,,,,ive tried it on my dads citroen c4 picasso as its been to garage they dont know what the fault is,,, so ive pluged in and used this to check the new battery wich has a fault and a obd code due to low prressure add blu,,,,, as im not a mechanic, im a electrician, we can take it to another garage and show them the print offs ive done from the topdon tester via laptop wich is brilliant to look back on,,,,, this is a lovely tester with built in codes you can read about the fault,,, comes in nice case there is a 3.5mm socket on the main lead you canthe functions plug in a 12v supply to power up the unit if you are checking through results and not pluged into car or laptop, this is very good,,,,,,,ive just got to lean all

### ⭐⭐⭐⭐ Easy to use
*by S***. on 2 October 2023*

Great price and functions range, doesn't do everything but does a lot. Can be purchased without the battery tester but the tester is very good indeed. I have an old fashioned 'Drop tester' which is great but this (battery test function) is streets ahead. Reviews on YouTube too.

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-01-26*