Introduction
The bbfly-B6 OBD2 Splitter is designed to expand the functionality of your vehicle's On-Board Diagnostics II (OBD2) port. This 16-pin Y-splitter cable allows you to connect two separate OBD2 devices simultaneously to a single vehicle OBD2 port, eliminating the need to constantly swap devices. It is ideal for applications requiring continuous connection of multiple diagnostic tools, tracking devices, or other OBD2-compatible accessories.
Product Overview
The bbfly-B6 OBD2 Splitter features a robust design with high-quality materials for durability and flexibility. It ensures all 16 pins pass straight through, preventing shared ground wire issues and maintaining signal integrity for connected devices.

Image: The bbfly-B6 OBD2 Splitter, showcasing its Y-cable design with one male and two female 16-pin connectors.
Key Features:
- 16-Pin Pass-Through: All 16 pins are connected directly, ensuring full compatibility and data transfer for both connected devices.
- Dual Female Ports: Provides two female OBD2 ports from a single male connector.
- Durable Construction: Made with high-quality materials for superior flexibility and long-lasting durability.
- Ultra-Flat Low Profile: Designed for easy installation and discreet placement, minimizing obstruction.
- Reduced Wear and Tear: Extends the life of your vehicle's original OBD2 connector by providing an alternative connection point.
Setup and Installation
Installing the bbfly-B6 OBD2 Splitter is a straightforward process. Ensure your vehicle is turned off before beginning the installation.
- Locate Your Vehicle's OBD2 Port: The OBD2 port is typically located under the dashboard on the driver's side, often near the steering column or center console. Refer to your vehicle's owner's manual if you have difficulty locating it.
- Disconnect Existing Devices (if any): If any device is currently plugged into your vehicle's OBD2 port, disconnect it.
- Connect the Male End of the Splitter: Plug the male 16-pin connector of the bbfly-B6 splitter into your vehicle's OBD2 port. Ensure it clicks securely into place.
- Connect Your Devices: Plug your desired OBD2 devices (e.g., diagnostic scanner, GPS tracker, dash cam power adapter) into the two female ports of the splitter.
- Secure the Cables: Route the cables and devices to a safe location where they will not interfere with driving or vehicle operation. Use zip ties or cable clips to secure them neatly under the dashboard. The flexible design allows for discreet placement.

Image: A close-up view of the male 16-pin connector of the bbfly-B6 OBD2 Splitter, ready for connection to the vehicle's port.

Image: A close-up view of the two female 16-pin connectors of the bbfly-B6 OBD2 Splitter, where devices will be plugged in.
Installation Video:
Video: This video demonstrates the installation process of the bbfly B6 OBDII Splitter Extension, showing how to connect it to the vehicle's OBD2 port and attach devices.
Operating Instructions
Once the bbfly-B6 OBD2 Splitter is installed and your devices are connected, operation is seamless. The splitter acts as a pass-through, allowing both connected devices to communicate with the vehicle's ECU (Engine Control Unit) as if they were directly connected to the original OBD2 port.
- Simultaneous Device Use: You can use two OBD2 devices concurrently. For example, a diagnostic scanner can be used for real-time data monitoring while a GPS tracker or dash cam power adapter remains connected and operational.
- Power Supply: The splitter provides power to both connected devices from the vehicle's OBD2 port.
- Data Communication: Data signals are transmitted to both devices, enabling them to function as intended.
No additional configuration is required for the splitter itself. The functionality of the connected devices will depend on their individual specifications and software.
Maintenance
The bbfly-B6 OBD2 Splitter requires minimal maintenance to ensure optimal performance and longevity.
- Regular Inspection: Periodically check the connectors and cable for any signs of wear, damage, or loose connections.
- Cleaning: If necessary, gently clean the connectors with a dry, lint-free cloth. Avoid using liquid cleaners or solvents.
- Avoid Excessive Force: When connecting or disconnecting devices, always apply gentle, firm pressure. Do not force connectors, as this can damage the pins.
- Proper Routing: Ensure the cable is not pinched, stretched, or exposed to extreme temperatures. Proper routing helps prevent damage and ensures a secure connection.
Troubleshooting
If you encounter issues with your bbfly-B6 OBD2 Splitter, consider the following troubleshooting steps:
- Device Not Recognized:
- Ensure all connections are secure. Disconnect and reconnect the splitter and all devices.
- Verify that the vehicle's ignition is on (or engine running, depending on the device's requirements).
- Test each device individually by connecting it directly to the vehicle's OBD2 port (without the splitter) to confirm the device itself is functional.
- Check for bent or damaged pins on the splitter's connectors or your devices.
- Intermittent Connection:
- Inspect the cable for any visible damage or kinks.
- Ensure the splitter and devices are not loose or moving excessively during vehicle operation. Secure them properly.
- Power Issues:
- Some devices may draw more power than others. If one device works but another doesn't, try connecting them one at a time to isolate the issue.
- Confirm your vehicle's battery is adequately charged.
If problems persist after following these steps, contact bbfly customer support for further assistance.
Specifications
| Feature | Specification |
|---|---|
| Brand | bbfly |
| Model Number | 8542040077 |
| Connector Type | 16-pin OBD2 (1x Male, 2x Female) |
| Cable Type | OBD2 Y Cable |
| Cable Length | 1FT / 30CM |
| Compatible Devices | Scan Tools, GPS Trackers, Dash Cam Power Adapters, etc. |
| Special Feature | 22AWG wiring for reliable data and power transfer |
| Package Dimensions | 4.65 x 3.43 x 1.54 inches |
| Item Weight | 3.53 ounces |
Warranty and Support
For information regarding warranty coverage, technical support, or product inquiries, please refer to the official bbfly website or contact their customer service directly. Keep your purchase receipt for any warranty claims.





