Autel MaxiScan MS309 Car Code Reader Check/ Clear Engine Fault Codes Universal OBD2 Diagnostic Scanner

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$18.99 $23.99
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1-Year Free Warranty

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Autel MaxiScan MS309 OBD2 Scanner Engine Fault Code Reader

Quickly scan and define Vehicle Diagnostic Trouble Codes (DTCs) with this user-friendly "handy little tool". It is a compact code reader that allows you to view Vehicle VIN, Freeze Frame Data, check I/M Readiness (Emissions), and monitor status before going for an annual SMOG CHECK. The MS309 is the go-to tool for quickly assessing vehicle health status. It does not require battery power as it is powered by plugging the OBD2 cable into the vehicle's OBD2 socket.

Autel MS309 OBD2 Scanner Engine Fault Code Reader

Autel MaxiScan MS309 Main Features

  • 1. Read Codes
  • 2. Clear Codes
  • 3. Turn Off Check Engine Light
  • 4. View Freeze Frame Data
  • 5. Define Diagnostic Trouble Codes
  • 6. O2 Sensor Test
  • 7. Component Test
  • 8. View Vehicle Information
  • 9. On-Board Monitor Test
  • 10. I/M Readiness Status(Smog Check)
  • 11. OBD II Readiness Monitors
  • 12. OBD II Monitor Readiness Status

View Freeze Frame Data

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

  • 1. To view the freeze frame, use the SCROLL button to select "View Freeze Frame" from the Diagnostic Menu and press the 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 the SCROLL button as necessary until all data have been displayed.
  • 4. The number "x/x" in the upper right corner of the screen indicates the total number of screens the retrieved freeze frame covers and the sequence of currently displayed data.
  • 5. If no freeze frame data is available, an advisory message saying "No Freeze Frame Data Stored!" will be displayed.

Retrieve I/M Readiness Status

The 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 with state emissions programs. Some of the latest vehicle models may support two types of I/M Readiness tests.

  • Since DTCs Cleared: indicates status of the monitors since the DTCs are erased.
  • 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. In some states, it is permissible for one or more monitors to be "Not Ready" and still pass the emissions inspection.

Retrieve Vehicle Info

The Autel MS309 supports DTC definitions. The definitions will be displayed alongside the codes, providing you with an easier way to read and quickly understand the meaning of the detected fault codes. There is no need to search online for the meaning of the codes.

The Autel MS309 is a useful tool for retrieving a vehicle's VIN. This function proves to be very helpful when purchasing a used vehicle from the market. By retrieving the VIN, you can accurately determine the car's true year and avoid being overcharged.

ms309 main functions view freeze data I/M readiness retrieve car info

DTC Definitions Display Below The DTCs Detected

The Autel MS309 supports DTC definitions. The definitions will be displayed under the codes, providing you with an easier way to read and quickly understand the meaning of the detected fault codes. There is no need to search online for the meaning of the codes.

DTC Definitions Display Below The DTCs Detected

Retrieve Codes & Turn Off Check Engine Light

The Autel MS309 universal OBD2 scanner not only reads and clears generic codes (P0, P2, P3, and U0), but also supports manufacturer-specific codes (P1, P3, and U1), as well as pending codes.

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

Caution: Erasing the Diagnostic Trouble Codes may result in the code reader deleting not only the codes from the vehicle's on-board computer but also the "Freeze Frame" data and manufacturer enhanced data. Additionally, the I/M Readiness Monitor Status for all vehicle monitors will be reset to a Not Ready or Not Complete status. Do not erase the codes until the system has been thoroughly checked by a technician.

Retrieve Codes & Turn Off Check Engine Light

Wide 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;
  • Americas: OBD is only supported after 1996;
Wide Vehicle Coverage

Autel MaxiScan MS309 Specifications

Display Backlit, 128x64 pixel display
Operating Temp 0 to 60 ℃ (32 to 140 ℉)
Storage Temp -20 to 70 ℃ (-4 to 158 ℉)
Power 8 to 18 V provided via the vehicle battery
Dimensions (LxWxH) 110.3 mm (4.34") x 69.5 mm (2.74") x 20.2 mm (0.80")
Weight NW: 180 g (0.39 lb.); GW: 210 g (0.46 lb.)

Package Includes:

  • 1x MaxiScan MS309 Main Unit
  • 1x 16 PIN Standard OBD II Cable

MS309 Product guides and documents

MS309 User Manual (PDF)

Certificate

www.diagmart.com is Autel Authorized Online Agent. Products Created by Autel ® Innovation & Quality You Can Trust.

diagmart

Shipping


Free Shipping on All Orders Without Any Tax.

All orders are processed and shipped out within 24 hours of being placed (excluding weekends and holidays). Once your order has been shipped out, we will provide you with a tracking number so that you can easily track your package and stay updated on its delivery status. With this tracking number, you'll be able to see the expected delivery date and have peace of mind knowing exactly when your package will arrive. Please allow 24-48 hours for the tracking information to update.

Delivered within 3 - 5 Business Days by UPS, USPS, Fedex, or DHL Ship from New Jersey or California, United States

For more details of the Shipping, please visit Shipping Policy

Returns


30 calendar days from the date you received it

If, for any reason, you are not satisfied with your purchase or if the product does not meet your expectations, you can return it within 30 calendar days from the date you received it. To qualify for a refund, please ensure that the product is returned in its original packaging along with the original purchase receipt.

Our team will be glad to assist you with the return process and issue a refund once we have received the returned product. Customer satisfaction is our top priority, and we strive to ensure that all of our customers are happy with their purchases from diagmart.com.

For more details of Returns, please visit Return & Refund Policy

Waranty


one (1) year limited warranty

At DiagMart, we stand behind the quality of our products and offer a one (1) year limited warranty on all products sold exclusively on diagmart.com.

This limited warranty provides coverage for defective workmanship or materials in your product and is your exclusive remedy. If your product is found to be defective during the warranty period, we will repair or replace it free of charge.

Please note that this warranty only applies to products purchased directly from diagmart.com and does not cover damage caused by misuse, accidents, or normal wear and tear.

We are committed to ensuring our customers have a positive experience with our products and services. If you have any questions or concerns about the warranty or need assistance with a warranty claim, please don't hesitate to contact our customer support team.

Q:Where are my orders shipped from?


A:Your order will be shipped from California or New York. If you want it to be shipped from a specific place, please let us know in advanced.


Q: If the one year free update expires, will it stop working?


A:You can still use your tool as usual even the one year update expires. It will not impact the normal usage of the tool. But if you need the newest vehicle coverage, it's better to update.


Q: How do I know whether this tool cover the vehicles I want?


A:Generally, our tools are compatible with all the OBD2 vehicles, but functions may differ the vehicle makes and models. Please contact us and provide the VIN and vehicle make and model so that we can tell you the functions it supports.


Q: Can I return the item if I realize that it does not fit my purpose?


A:Yes, you can return the item within 30 days from the date you receive the unit.

During the subscription, you will be able to enjoy the latest released function by Autel and can cover the latest vehicle makes and models. If your device expires, you can still use the scanner's all functions without any issues, but we recommend you renew the software to enjoy the latest released function and expand coverage for the latest vehicle makes and models.

Unleash Exclusive Rights with Upgrades

Exclusive Function with software Upgrades

TOOL FUNCTION UPGRADES

Get the latest function from Autel

Exclusive Vehicle Coverage with software Upgrades

LATEST VEHICLE COVERAGE

Expanded coverage for the latest vehicle makes and models

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Customer Reviews

Based on 16 reviews
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K
Kali (United States)
Simple and quick code reader

While I have a large tool-truck brand bi-directional scan tool, there are times when I just need to check emissions monitors or quickly read a code. In those situations, time is money, and spending 5-10 minutes on simple tasks is too much. That's where the Autel code reader comes in handy. It allows me to complete these tasks in under a minute and conveniently fits in my pocket. Plus, it's affordably priced. Overall, I'm pleased with this little device and highly recommend it.

S
Stanlet (United States)
small but good

This is a very small product, I love it, very convenient

S
Simith R. (United States)
good!!

It is really a good tool, if you are not a professional mechainc, then I recommed it to you, it's suitable for you to learn how to repair a car.

R
Ronnie J. (United States)

It's great i would recommend it to others

D
Danielle L. (Canada)
Easy and efficient

Love having this in my glovebox..

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