MS309 Scanner CAN BUS OBD2 Car Code Reader EOBD OBD II Diagnostic Tool

Introduction to the MS309 OBD2 Scanner

The MS309 Scanner is a compact and user-friendly diagnostic tool designed to help vehicle owners quickly identify and resolve issues with their cars. Whether you're dealing with a persistent check engine light or preparing for an emissions test, the MS309 is an invaluable asset that can save you time and money.

Key Features of the MS309 Code Reader

1. Read and Clear Diagnostic Trouble Codes (DTCs)

With the autel maxiscan MS309, you can retrieve both generic and manufacturer-specific diagnostic trouble codes in seconds. This feature allows you to understand the underlying issues with your vehicle, enabling you to prepare an accurate cost estimate for repairs. By knowing the code ahead of time, you can potentially save hundreds of dollars on diagnostic fees at the repair shop.

2. Turn Off the Check Engine Light

The autel MS309 scanner makes it easy to turn off your check engine light (MIL). Often, the cause of the light could be something simple, like a loose fuel cap or worn-out spark plugs. By reading the code with the MS 309, you can quickly diagnose the problem and reset the light, avoiding unnecessary trips to the mechanic.

3. Prepare for Annual Smoke Checks

If your vehicle's OBD II readiness monitor is not "ready," you risk failing your annual smoke check. The MS309 can retrieve I/M readiness status, checking various monitors such as misfire monitors, fuel system monitors, and O2 sensors. This ensures your vehicle is ready for inspection, saving you time and money.

4. Easy-to-Use DTC Definitions

The OBD2 MS309 displays DTC definitions directly on the screen, making it easy for car enthusiasts and beginners to understand the issues at hand. This feature simplifies the diagnostic process, allowing users to quickly locate problem areas without extensive experience.

5. Retrieve Freeze Frame Data and Vehicle Information

The MS309 can retrieve critical freeze frame data, including engine parameters like RPM, fuel pressure, and coolant temperature. Additionally, it provides vehicle identification information such as the VIN and calibration verification numbers (CVNs), which is especially useful when purchasing a used car.

6. Compatibility with 99% of Vehicles

The MS309 supports all OBD2 protocols and is compatible with 99% of OBDII compliant vehicles, including domestic, Asian, and European models from 1996 onward. This broad compatibility makes it a versatile tool for any car owner.

How to Set Up MS309 Code Read Scanner

1. Language Selection

• Default Language: English
• How to Change:
  1. From the System Setup menu, use the SCROLL button to select Language.
  2. Press the ENTER/EXIT button.
  3. Use the SCROLL button to choose your desired language.
  4. Press ENTER/EXIT to save your selection and return to the previous menu.

2. Unit of Measure

• Default Measurement Unit: Metric
• How to Change:
  1. From the System Setup menu, use the SCROLL button to select Unit of Measure.
  2. Press the ENTER/EXIT button.
  3. Use the SCROLL button to select your preferred unit (English or Metric).
  4. Press ENTER/EXIT to save your choice.

3. Contrast Adjustment

• How to Adjust:
  1. From the System Setup menu, select Contrast using the SCROLL button.
  2. Press the ENTER/EXIT button.
  3. Adjust the contrast using the SCROLL button.
  4. Press ENTER/EXIT to save your settings.

Exiting the System Setup

• To exit the System Setup menu, use the SCROLL button to select Exit and press the ENTER/EXIT button to return to the startup menu.

MS309 Scanner Vehicle Coverage

The MS309 is designed to work with all OBD II compliant vehicles, including those using the next-generation Control Area Network (CAN) protocol. According to EPA regulations, all vehicles sold in the United States from 1996 onward (including cars and light trucks) must be OBD II compliant. This applies to all domestic, Asian, and European vehicles.

OBD II Compliance for Older Vehicles

• A small number of 1994 and 1995 model year gasoline vehicles may also be OBD II compliant. To verify compliance:
  • Check the Vehicle Emissions Control Information (VECI) label, typically located under the hood or near the radiator.
  • The label should state “OBD II Certified” if the vehicle meets OBD II standards.

Data Link Connector (DLC)

• For a vehicle to be OBD II compliant, it must have a 16-pin Data Link Connector (DLC) located under the dashboard. The Vehicle Emission Control Information label must also indicate OBD II compliance.

MS309 Packing List

• 1 x MS309 unit
• 1 x User Manual

Conclusion

The MS309 Scanner is a must-have tool for anyone looking to maintain their vehicle's health. With its ability to read and clear codes, turn off check engine lights, and prepare for emissions tests, the MS309 empowers users to take control of their car's diagnostics. Whether you're a seasoned mechanic or a beginner, this scanner is designed to simplify the diagnostic process.