OBDLink MX PLUS OBD2 Scanner Diagnostic Scan Tool User Manual

1. Introduction

The OBDLink MX+ is a versatile, pocket-sized Bluetooth OBD-II adapter designed to transform your iOS, Android, or Windows device into a professional-grade diagnostic scan tool, trip computer, logger, and real-time performance monitor. It offers deep diagnostics, enhanced trouble code reading, and advanced parameter monitoring for all OBD-II compliant vehicles.

Figure 1: OBDLink MX+ Device

2. Package Contents

Figure 2: What's included in the box

• OBDLink MX+ Bluetooth Interface
• Printed User Guide
• Free OBDwiz Download (for Windows PC)
• Free OBDLink App (for iOS/Android)

3. Key Features

• Maximum vehicle coverage (OBD-II compliant vehicles only)
• Supports SW-CAN & MS-CAN
• World’s fastest Bluetooth OBD-II adapter
• Free unlimited OEM-specific data add-ons
• Compact design
• Hacker-proof security
• Automatic sleep & wake-up (BatterySaver™ sleep mode)
• Free firmware updates
• Compatible with many third-party apps

Figure 3: No Hidden Fees with OBDLink MX+

4. Compatible Devices & Protocols

4.1. Compatible Devices

• Android (2.2+)
• Windows PC (XP SP2+)
• iOS (iOS 9.0+)
• BlackBerry
• Garmin VIRB XE

4.2. Supported Protocols

• ISO 15765-4 (CAN 250/500 kbps)
• ISO 14230-4 (KWP2000)
• ISO 9141-2
• SAE J1850 VPW / PWM
• SAE J2411 SW-CAN (GM)
• MS-CAN (Ford)

5. Software & Enhanced Diagnostics

5.1. Software & Apps Included

The OBDwiz software for Windows PC and the OBDLink app for mobile devices allow you to:

• Turn off the Check Engine Light
• Read and clear stored & pending trouble codes
• Access freeze frame data
• Display, graph, and log 90+ real-time parameters
• Create custom dashboards
• Monitor fuel economy
• And much more

Figure 4: OBDLink MX+ compatible apps displaying vehicle data

5.2. Enhanced OBD2 Diagnostics

Enhanced diagnostics provide access to OEM-level modules not available through generic OBD2, including:

• ABS
• Airbag
• Transmission
• Tire Pressure
• Body Control Modules

You can read and clear codes, view extended descriptions, and monitor hundreds of real-time parameters (vehicle dependent).

Figure 5: OEM Support for advanced diagnostics

6. Setup & Installation

Follow these steps to set up your OBDLink MX+ device and connect it to your diagnostic application:

1. Download the OBDLink app: Visit www.obdlink.com/apps to download the official OBDLink app for your device.
2. Start the engine: Ensure your vehicle's engine is running.
3. Plug MX+ into the OBD port: The OBD port is usually located in the driver's footwell.
4. Push the “Pair” button: Locate and press the "Pair" button on the OBDLink MX+ device.
5. Pair via Bluetooth: Go to your device's settings (e.g., Device Settings → Bluetooth) and pair with "OBDLink MX+". Tap “Confirm/OK” if prompted.
6. Launch the OBDLink app: Open the OBDLink app on your device and tap "Connect".
7. Select Communication Type: Within the app, select the "Bluetooth” option as the communication type.
8. Allow Location Services: Grant location services permission to the app when prompted. This is used to enable features like the map function.

For enhanced OEM add-ons, tap the Vehicle Editor icon within the app and enter your vehicle's Year, Make, Model, and Option to check for available add-ons.

7. Operation

Once connected, the OBDLink MX+ allows you to perform various diagnostic and monitoring tasks:

• Real-time Monitoring: View live vehicle parameters such as speed, RPM, fuel economy, and more through customizable dashboards.
• Diagnostic Trouble Codes (DTCs): Read and clear both generic OBD-II and manufacturer-specific (OEM) trouble codes. This includes codes from modules like ABS, Airbag, Transmission, and Body Control Modules.
• Freeze Frame Data: Access a snapshot of vehicle conditions at the moment a trouble code was set.
• Performance Logging: Record vehicle data over time for analysis.
• Check Engine Light: Turn off the Check Engine Light after addressing the underlying issue.

The device's multi-layer security mechanism prevents unauthorized access, ensuring your vehicle's data remains secure.

8. Maintenance

• Firmware Updates: The OBDLink MX+ supports free firmware updates. Regularly check for and install updates through the official OBDLink app to ensure optimal performance and compatibility with the latest vehicles and features.
• BatterySaver™ Sleep Mode: The device features an automatic sleep & wake-up function. It can remain plugged into your vehicle's OBD port continuously without draining the battery.
• Cleaning: Keep the device clean and free from dust and debris. Use a soft, dry cloth for cleaning.
• Storage: When not in use for extended periods, store the device in its protective case in a cool, dry place.

9. Troubleshooting & FAQ

• Device not connecting: Ensure the device is firmly plugged into the OBD port, the vehicle's engine is running, and Bluetooth is enabled on your mobile device. Try restarting the app and your mobile device.
• "Pair" button issues: If the pair button feels loose or unresponsive, contact support.
• Cannot clear codes: Ensure the vehicle's ignition is on (engine running or in 'key on, engine off' position) and the app has full permissions. Some critical codes may require professional attention.
• Mileage alteration: The OBDLink MX+ is a diagnostic tool and does not support altering vehicle mileage (odometer).
• Multilanguage support: The device itself is not multilanguage; its functionality depends on the language support of the connected application. The official OBDLink app is primarily in English.
• Compatibility with specific vehicles/apps: While compatible with all OBD-II compliant vehicles, specific advanced functions (like coding injectors, changing tire size, or proxy alignment) depend on the capabilities of the third-party app used (e.g., AlfaOBD, BimmerCode, FORScan) and the vehicle's ECU. Refer to the third-party app's documentation for detailed compatibility.
• J1939 protocol: The OBDLink MX+ does not explicitly support J1939 for heavy-duty vehicles like Cummins. It supports standard OBD-II protocols including ISO 15765-4, ISO 14230-4, ISO 9141-2, SAE J1850 VPW/PWM, SAE J2411 SW-CAN (GM), and MS-CAN (Ford).
• J2534 Pass-Thru: This device is an OBD-II adapter, not a J2534 pass-thru device.

10. User Tips

• For advanced coding and specific vehicle functions (e.g., for BMW, Fiat, Jeep), explore compatible third-party applications like BimmerCode, AlfaOBD, and FORScan.
• Always ensure your OBDLink MX+ firmware is up-to-date for the best performance and compatibility.
• If using with Android, ensure location services are enabled for the app to fully utilize features like mapping.
• The device is designed to be left plugged in without draining your car battery, thanks to its BatterySaver™ sleep mode.

11. Specifications

12. Warranty & Support

The OBDLink MX+ comes with a 3-year warranty. For any issues or support needs, please refer to the following resources:

• User Manual (PDF): A detailed user manual in PDF format is available for download. You can access it via the official OBDLink website or by clicking here.
• Online Support: Visit the OBDLink support portal at obdlink.com/support for FAQs, troubleshooting guides, and to contact their support team.
• Seller Information: This product is sold by OBDLink Official Store.

The device includes overvoltage protection and battery drain protection, ensuring peace of mind when left plugged in.

13. Important Notice (Anti-Fraud Statement)

To ensure product authenticity and prevent fraud:

• All products are shipped in sealed packaging only.
• All orders are video-recorded before shipment, including the complete packing process.
• Empty packages or substituted items are not possible.
• Any false or fraudulent refund claims will be handled through official AliExpress dispute channels.