What does the Autel OBD2 Scanner MS309 do?

The Autel OBD2 Scanner MS309 is a plug and play handheld OBD2 code reader that can scan vehicle Diagnostic Trouble Codes DTCs in seconds. It can read/clear codes, view DTC definitions, turn off check engine light, check I/M readiness status, retrieve freeze frame data and vehicle info, and more.

Is this OBD2 scanner compatible with my vehicle?

The Autel OBD2 Scanner MS309 is compatible with 99 OBDII Compliant vehicles, including 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.

How do I use the Autel OBD2 Scanner MS309?

The Autel OBD2 Scanner MS309 communicates with vehicles through a standard 16 PIN OBD2 cable and it is powered by the vehicle directly no battery is needed. You can use the scanner to retrieve generic codes, manufacturer specific codes, and pending codes in seconds and display DTC definitions under the codes.

Can I use the Autel OBD2 Scanner MS309 to pass a smog check?

Yes, you can use the Autel OBD2 Scanner MS309 to 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.

Is the Autel OBD2 Scanner MS309 easy to use?

Yes, the Autel OBD2 Scanner MS309 is easy to use. Each code is followed by its definition, quickly locating the problem location, perfect for car DIYers and beginners. It also comes with a 12 month warranty and free lifetime technical support.

Autel OBD2 Scanner MS309 Review

9.7

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Verdict overview

worth the money 9.6

Precision 9.6

Simple to use 9.8

Sheerness 9.6

clearly written 9.8

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Pros

The MS309 obd2 scanner can save you money on emissions
related repairs.
The MS309 can read and clear codes, view DTC definitions, and turn off the check engine light.

Cons

Possible short lifespan.

Tech specs

OEM Part Number	Supports CAN Controller Area Network and all other current OBD II protocols
Screen Size	1 Inches
Power Source	Battery Powered
Bulb Type	LED
Manufacturer Part Number	MaxiScan 2022
Lift Type	Manual
Product Dimensions	4 x 2.6 x 0.8 inches
Exterior	Brushed
Special Features	Compatible with domestic, Asian and European vehicles, 1996 and newer, Views freeze frame data, Turns off Check Engine Light, clears codes and resets monitors, Displays DTC definitions on screen, Retrieves generic P0, P2, P3 and U0 , manufacturer specific P1, P3 and U1 , and pending codes, Displays monitor and I/M readiness status emissions , Erases Codes and turns off Check Engine Lights, Retrieves vehicle identification information VIN, CALID and CVN , Supports CAN Controller Area Network and all other current OBD II protocols
Voltage	12 Volts
Model	MS309
Operating System	Other
Item Dimensions LxWxH	4 x 2.6 x 0.8 inches
Display resolution	Backlit, 128x64 pixel display
Item Weight	11.3 ounces
ABPA Partslink Number	MS1234567

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Expert opinion

I recently had the opportunity to review the Autel OBD2 Scanner MS309 and I must say it is an impressive piece of equipment. It is a handheld OBD2 code reader capable of scanning vehicle Diagnostic Trouble Codes DTCs in seconds, which can help pinpoint emission related issues.

The Autel OBD2 Scanner MS309 is relatively easy to use and has a wide range of features that make it a great choice for those who want to take control of their own car repairs. With this device, you can read and clear codes, view DTC definitions, turn off check engine light, check I/M Readiness status, retrieve freeze frame data and vehicle info, etc. Knowing the codes in advance will brace you for the cost estimate to fix at the repair shop, so you can save hundreds of dollars on diagnostics alone. The device can also be used to quickly find out why the check engine light is on and reset it, as well as retrieve I/M Readiness status to help your car ready pass the annual smog check.

The device is compatible with 99 OBDII Compliant vehicles and supports all OBD2 protocols: KWP2000, ISO2000, ISO9141, J1850 VPW, J1850 PWM and CAN. It communicates with vehicles through a standard 16 PIN OBD2 cable and it s powered by vehicle directly no battery needed. What s more is that each code is followed by its definition when you are reading codes so you can quickly locate the problem area. Lastly, it also retrieves freeze frame data including important engine parameters like RPM, fuel pressure, fuel trim, engine coolant temperature etc., as well as Vehicle Information such as VIN number, Calibration ID s , Calibration Verification Nos. CVNs , etc.

Overall this product is definitely worth considering if you are looking for an affordable yet reliable tool that can help diagnose car problems quickly and accurately. This product is great for DIYers or beginners who want to take control of their own car repairs without having to pay for costly services from mechanics or repair shops. The Autel OBD2 Scanner MS309 does come with a 12 month warranty and free lifetime technical support so you don t have to worry about any issues after purchase either!

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Frequently asked questions

What does the Autel OBD2 Scanner MS309 do?
The Autel OBD2 Scanner MS309 is a plug and play handheld OBD2 code reader that can scan vehicle Diagnostic Trouble Codes DTCs in seconds. It can read/clear codes, view DTC definitions, turn off check engine light, check I/M readiness status, retrieve freeze frame data and vehicle info, and more.
Is this OBD2 scanner compatible with my vehicle?
The Autel OBD2 Scanner MS309 is compatible with 99 OBDII Compliant vehicles, including 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.
How do I use the Autel OBD2 Scanner MS309?
The Autel OBD2 Scanner MS309 communicates with vehicles through a standard 16 PIN OBD2 cable and it is powered by the vehicle directly no battery is needed. You can use the scanner to retrieve generic codes, manufacturer specific codes, and pending codes in seconds and display DTC definitions under the codes.
Can I use the Autel OBD2 Scanner MS309 to pass a smog check?
Yes, you can use the Autel OBD2 Scanner MS309 to 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.
Is the Autel OBD2 Scanner MS309 easy to use?
Yes, the Autel OBD2 Scanner MS309 is easy to use. Each code is followed by its definition, quickly locating the problem location, perfect for car DIYers and beginners. It also comes with a 12 month warranty and free lifetime technical support.

Our expert

Leanna GilTech & Entertainment

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Leanna's expertise covers a wide range of categories, including computers, smartphones, and other consumer electronics. Leanna's deep understanding of the latest technological advancements and commitment to helping consumers make informed purchasing decisions has earned her a reputation as one of the industry's most trusted and influential voices.