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Autel OBD2 Scanner MS309 Universal Car Engine Fault Code Reader, Check Engine Light and Emission Monitor Status, OBDII CAN Diagnostic Scan Tool

4.6 4.6 out of 5 stars 15,868 ratings

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Purchase options and add-ons

Brand Autel
Product Dimensions 2.74"L x 0.8"W x 4.34"H
Display resolution 128x64
Power Source
by OBD2 cable connect to car
Screen Size
1 Inches

About this item

  • 🔥【On-Screen DTC Definition, Save Time & Easy To Use】Autel MS309 OBD2 code reader with UPGRADED CHIP to retrive and clear generic(P0, P2, P3 and U0), manufacturer-specific(P1, P3 and U1) and pending codes, and display DTCs(Diagnostic Trouble Codes) meanings under the codes based on the built-in database(more than 3000 codes). Don't need to spend much time to search meanings on the internet. This advanced plug-and-play MS309 scanner saves you time - a must-have obd2 scanner for each car owner.
  • 🔥【Retrieve Freeze Frame Data &Vehicle info】The more specific the information available, the clearer the problem. The OBD2 scanner MS309 can retrieve freeze frame data, including important engine parameters like RPM, fuel pressure, fuel trim, engine coolant temperature, etc. Also it can retrieve Vehicle Information such as VIN number, Calibration ID(s), Calibration Verification Nos. (CVNs), etc, which is useful to check whether the ECU matches when you are buying a used car.
  • 🔥【Read Codes & Clear Codes】Knowing the codes in advance will brace you for the repair cost estimate so that you won't be fooled and get overcharged by the repair shop.This Autel MaxiScan MS309 obd2 scanner scans OBD2-compliant vehicle Diagnostic Trouble Codes (DTCs) in seconds to pinpoint emission-related issues. The little guy can do many basic but necessary works: read/clear codes, view DTC definition, turn off check engine light, check I/M Readiness status, retrieve freeze frame data and vehicle info.
  • 🔥【Turn Off Check Engine Light】When your car detects an emission related problem, Check Engine Light will be turned on. Do you want to spend hundreds of dollars to turn off this light every time, maybe it's just a gas cap that's not tightened or needs to change bad parts like spark plugs and ignition coils? With Autel MS309 scan tool, you can read code to quickly find out why the check engine light is on and reset it.
  • 🔥【Ready For Annual Smog Check】If the OBD II Readiness Monitors on your car are not “Ready”, your car may fail the smog check. MS309 OBD2 scanner can retrieve I/M Readiness status to check the monitors like misfire monitor, fuel system monitor, comprehensive components monitor, catalyst monitor, O2 sensors, EVAP, etc, to help your car ready pass the annual smog check. That way you won't waste time and money on a failed smoke check.
  • 🔥【Works on 99% Vehicles】Autel MaxiScan MS309 compact pocket code reader supports all OBD2 protocols: KWP2000, ISO2000, ISO9141, J1850 VPW, J1850 PWM and CAN. This OBD2 code scanner is compatible with 99% OBDII-Compliant vehicles, passenger cars or light trucks. For OBD2 cars, usually, post 1996 for US market, post 2006 for EU market and post 2009 for Asian market.
  • 🔥【No-Worry Purchase】Automotive OBDII scan tool MS309 comes with a 12-month warranty and free lifetime technical support. If you need any technical support, please feel free to contact us at 📞autelofficial @ outlook . com📞. NOTE: It does not support the full engine system, if need, pls consider ML629/ MK808BT, etc.
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Autel OBD2 Scanner MS309 Universal Car Engine Fault Code Reader, Check Engine Light and Emission Monitor Status, OBDII CAN Diagnostic Scan Tool
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Price$22.99-50% $13.15
List:$26.30
-30% $13.99
List:$19.99
$49.99$23.99$46.99
Delivery
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Customer Ratings
Easy to use
4.7
4.0
4.0
3.0
3.0
Value for money
4.6
4.5
4.1
4.3
Accuracy
4.6
2.3
2.6
Sold By
Autel Official
Outzone US Store
Anyongora
OBD mate
Banma Online
PremiumpartsWhosale
power source
by OBD2 cable connect to car
Corded Electric
Corded Electric
Corded Electric
Battery Powered
Corded Electric
display size
1 inches
4.65 inches
2.1 inches
2.4 inches
2.4 inches
2.8 inches
operating system
0
OBDII
Windows 7, Windows 8, Windows 10, Windows 11
🔍 100000+ Fault Code Lookup 💾 Detailed Data Flow 📈 Record & Review & Print Fualt Data 🖱️ Retrieve Vehicle VIN 🚧 I/M Readiness 🔒 EVAP Test 💻 O2 Sensor Test
native resolution
128x64
128x64
320x240
320x240
language
english
english, spanish, french, german, dutch
english
english, english

From the brand


Product Description

Brand Story

Autel is one of the famous manufacturers of professional automotive diagnostic tools, equipment and accessories in the automotive aftermarket since 2004. Autel, with top automotive experts of years of experiences in the industry, has been committed to creating maximum value to customer worldwide by providing quality-assured, user-friendly, cost-effective and innovative products.

2024 Autel MS309 OBD2 Scanner Engine Fault Code Reader Retrieves Generic (P0, P2, P3 and U0), Manufacturer-specific (P1, P3 and U1), and Pending Codes

Autel MS309

2024 Plug & Play Autel MS309 OBD2 Scanner Engine Fault Code Reader, Read Vehicles VIN, Freeze Frame Data, DTCs Definitions, Battery-Free

Quickly scan and define vehicle Diagnostic Trouble Codes (DTCs) with this Plug-and-Play "handy little tool", compact code reader with the ability to view Vehicle VIN, Freeze Frame Data, check I/M Readiness (Emissions) and monitor status before go to anual SMOG CHECK. The MS309 is a go-to tool for quick vehicle health status. No battery is needed, powered by OBD2 cable pluged in vehicle OBD2 socket.

Functions

Autel MS309

Autel MS309

Autel ms309

View Freeze Frame Data

Autel MaxiScan MS309 is a basic and universal OBD2 code reader with View Freeze Frame function.

1. To view freeze frame, use SCROLL button to select View Freeze Frame from Diagnostic Menu and press ENTER/EXIT button.

2. Wait a few seconds while the code reader validates the PID MAP.

3. If the retrieved information covers more than one screen, use SCROLL button, as necessary, until all data have been shown up.

4. The number “x/x” to the upper right corner of the screen indicates total number of screens the retrieved freeze frame covers and sequence of currently displayed data.

5. If there is no freeze frame data available, an advisory message “No Freeze Frame Data Stored!” shows on the display.

Retrieve I/M Readiness Status

I/M Readiness function is used to check the operations of the Emission System on OBD2 compliant vehicles. It is an excellent function to use prior to having a vehicle inspected for compliance to a state emissions program. Some latest vehicle models may support two types of I/M Readiness tests:

A. Since DTCs Cleared – indicates status of the monitors since the DTCs are erased.

B. This Drive Cycle – indicates status of monitors since the beginning of the current drive cycle.

An I/M Readiness Status result of “NO” does not necessarily indicate that the vehicle being tested will fail the state I/M inspection. For some states, one or more such monitors may be allowed to be “Not Ready” to pass the emissions inspection.

DTC Definitions Display Below The DTCs Detected

Autel MS309 supprots DTC definitions. The definitons will be displayed under the codes. It provides you an easier way to read and a quick understanding of what's the meaning of the fault codes that was detected.No need to search online for what's the codes meaning.

Functions

Autel obd2 scanner

Autel MS309

autel ms309 obd2 scanner

Retrieve Vehicle Info

Autel MS309 supprots DTC definitions. The definitons will be displayed under the codes. It provides you an easier way to read and a quick understanding of what's the meaning of the fault codes that was detected.No need to search online for what's the codes meaning.

Autel MS309 is a good tool to be with you to retrive vehicle VIN - This functions is very helpful if you go to market to buy an "used" vehicle. Since you can know the real year of the car based on the VIN retrivewed and won't be overcharged.

Retrive Codes & Turn Off Check Engine Light

Autel MS309 universal OBD2 scanner not only read and clear generic codes(P0, P2, P3 and U0), but also support manufacturer-specific (P1, P3 and U1), and pending codes.

This function is performed with key on engine off (KOEO). Do not start the engine.

CAUTION: Erasing the Diagnostic Trouble Codes may allow the code reader to delete not only the codes from the vehicle’s on-board computer, but also “Freeze Frame” data and manufacturer enhanced data. Further, the I/M Readiness Monitor Status for all vehicle monitors is reset to Not Ready or Not Complete status. Do not erase the codes before the system has been checked completely by a technician.

Vehicle Coverage:

Vehicle OBD support in various regions (for reference)

European Region: OBD is only supported after 2006;

Americas: OBD is only supported after 1996;

Asia: OBD is only supported after 2009.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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Autel OBD2 Scanner MS309 Universal Car Engine Fault Code Reader, Check Engine Light and Emission Monitor Status, OBDII CAN Diagnostic Scan Tool


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Customer reviews

4.6 out of 5 stars
4.6 out of 5
15,868 global ratings

Customers say

Customers like the performance, accuracy, quality, value, and ease of use of the vehicle scan tool. They mention that it really does the job, helps diagnose vehicle problems accurately, and is well constructed. They appreciate the value for money, saying that it's the best money spent. They also mention that the scanner is easy to operate.

AI-generated from the text of customer reviews

523 customers mention492 positive31 negative

Customers find the vehicle scan tool easy to use. They mention that the instructions are online and downloadable. They also say that the codes are easy to read. Overall, customers are satisfied with the product's ease of use and recommend it to others.

"...He never used one before, but he was surprised how easy to use it was, and vey clear!..." Read more

"...The device is pretty straightforward to use. The instructions are online and downloadable; however, Autel’s website does not make it easy to find..." Read more

"...Great price and got it in 2 days. Super easy to plug in, understand & temporarily clear certain “check engine” codes my sensors in my newly..." Read more

"Bought this for the Hubbie, per recommendation....LOL. Product is easy to use. Helps diagnose error codes for repair of vehicle...." Read more

501 customers mention455 positive46 negative

Customers are satisfied with the performance of the vehicle scan tool. They say it really does the job, is popular with actual working mechanics, and is super useful when your car throws a code. They also say it's great for basic troubleshooting, and has more features than other models. Customers also mention that the reader is very accurate and easy to use, and simple and straight to the point.

"...It did the job well for an unprofessional, considering the good price value !" Read more

"Works well with my 2007 Prius in detecting the hybrid battery pack Data Trouble Code (DTC), P0A80...." Read more

"...Great price and got it in 2 days. Super easy to plug in, understand & temporarily clear certain “check engine” codes my sensors in my newly..." Read more

"Works very well and easy to use" Read more

325 customers mention311 positive14 negative

Customers appreciate the value of the scan tool. They say it's the best money spent, works well, and saves them a ton of money. Some mention that it'd be a good buy.

"...It did the job well for an unprofessional, considering the good price value !" Read more

"...The good: Green Bean’s lifetime warranty, price, they take phone calls on Sundays, quick turn around from time of call to time of repair, they come..." Read more

"...Great price and got it in 2 days...." Read more

"...Good buy." Read more

108 customers mention91 positive17 negative

Customers like the quality of the vehicle scan tool. For example, they mention it's well constructed, reliable, and a great detailed system scanner.

"This scanner is basic and worth every penny. It can read and clear trouble codes on your OBDII vehicle...." Read more

"Good little scanner , it doesn't do Instant freeze frame data on some of the older cars but works for other minor needs...." Read more

"...the scanner lit up & immediately started scanning & it finished scanning in less than a minute & found 5 error..." Read more

"Very simple and effective scanner. I keep it in my car emergency tool kit...." Read more

63 customers mention63 positive0 negative

Customers are satisfied with the accuracy of the vehicle scan tool. They say it helps them diagnose vehicle problems accurately, providing the correct diagnosis codes to find out what is wrong with their vehicle. The tool is easy to connect and use, and provides an accurate result. Some customers also say that it allows them to diagnose problems before taking to a shop.

"Helped me diagnose issues with my truck. Saved me lots of money on repairs." Read more

"...Easy to plug in, accuracy is very good, wish the screen was a smidge bigger, buttons are perfect size. Cord length is good...." Read more

"...The scanner was easy to operate and was very accurate. For me it was perfect...." Read more

"...the recording features of some similarly priced units, but it seemed accurate and easy to use...." Read more

31 customers mention31 positive0 negative

Customers find the vehicle scan tool portable. They say it fits in the glove box or console and is easy to use. Customers also mention that the letters are not super tiny and the screen is well lit. They also say it's a good tool to keep in the truck with you.

"...Autel code reader lets me do those tasks in under a minute, fits in my pocket so I can keep it handy, and is priced right." Read more

"Small but fully equipped for identifying codes and turning off warning lights...." Read more

"...The screen is well lit & the letters are not super tiny...." Read more

"...accuracy is very good, wish the screen was a smidge bigger, buttons are perfect size. Cord length is good...." Read more

100 customers mention67 positive33 negative

Customers are mixed about the readability of the vehicle scan tool. Some mention that it can scan, read, and clear codes on your OBDII vehicle, while others say that it didn't clear any codes.

"This scanner is basic and worth every penny. It can read and clear trouble codes on your OBDII vehicle...." Read more

"Small but fully equipped for identifying codes and turning off warning lights...." Read more

"...BTW this device only tells you that codes were erased, it does not tell ou which ones...." Read more

"...few minutes, it started running less smooth, but not rough, yet no codes were logged. The emissions menu said everything was fine. That's good...." Read more

28 customers mention19 positive9 negative

Customers are mixed about the battery light. Some mention the product is easy to use and helps diagnose error codes for repair of vehicle. It shows fault codes instantly, and is a quick and easy way to find check engine light problems and remove them. However, some say that the product showed (PO456) check engine Light alert was not serious, and does not clear the check engine.

"...Product is easy to use. Helps diagnose error codes for repair of vehicle...." Read more

"...started scanning & it finished scanning in less than a minute & found 5 error codes...." Read more

"Using this product showed (PO456) Check Engine Light alert was not serious...." Read more

"Great fault code tester for problem identification." Read more

Gets the job done
5 Stars
Gets the job done
Perfect for reading and clearing codes in a hurry.
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Top reviews from other countries

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Alejandro Gomez
5.0 out of 5 stars Excelente, pero no tiene la marca AUTEL
Reviewed in Mexico on November 6, 2023
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Alejandro Gomez
5.0 out of 5 stars Excelente, pero no tiene la marca AUTEL
Reviewed in Mexico on November 6, 2023
Compré este pequeñín para revisar códigos de mis carros en casa. Es muy rápido, y aunque es muy básico, bien vale la pena; pues lo podemos transportar en la guantera, o con la herramienta. También resulta una gran ayuda si te gusta hacer mecánica en casa, o para dar seguimiento a fallas intermitentes o recurrentes.
Todo muy bien. Sin embargo, no pude encontrar la marca Autel por ningún lado ni en el producto, ni el empaque.
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One person found this helpful
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JOSE ANTONIO VAZQUEZ SANCHEZ
5.0 out of 5 stars Detecta y Borra Fallas en todo tipo de vehículos
Reviewed in Mexico on May 28, 2023
Mario ivan
5.0 out of 5 stars Buen producto llegó en tiempo
Reviewed in Mexico on July 5, 2022
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Prabh pannu
1.0 out of 5 stars Worst purchase ever
Reviewed in Canada on July 3, 2023
Jmdubuc
5.0 out of 5 stars OBD2 code identification
Reviewed in Canada on November 28, 2023