OBD2 Splitter for Ford and for GM

The bbfly B54 OBD2 Splitter is a rugged 2-way, 1ft (30cm) OBDII extension designed to let two devices share a single factory 16-pin diagnostic port in Ford and GM vehicles.

If you need to run a dashcam, GPS tracker, telematics device or a scanner while still keeping quick access to the factory port, this splitter creates a neat, reliable junction without relocating the car’s original connector. The B54 works with standard 16-pin OBDII ports used by many Ford and General Motors cars and trucks, and its thicker cable and compact length reduce clutter while protecting connections under the dash.

Will this plug into my Ford or GM vehicle’s diagnostic port?

Yes — provided your vehicle has a standard 16-pin OBDII diagnostic connector in the factory location. The B54 is built to match the pin layout and shape used by most Ford and GM OBDII ports, so it installs without modification.

• Designed for standard 16-pin OBDII connectors used in Ford and GM models.
• Fits factory-located ports; no splicing required.
• Confirm port type before ordering to avoid compatibility issues.

How does the 2-way splitter manage two devices at once?

The B54 provides two parallel OBDII outlets so you can connect a scanner or code reader alongside a GPS or telematics unit. It routes power and the OBDII communication lines to both outputs while maintaining a compact connection that sits near the original port.

• Two full OBDII sockets for simultaneous device connection.
• Maintains standard OBDII signal lines for diagnostics and power.
• 1ft (30cm) cable keeps devices close to the dash to reduce cable runs.

Is this splitter durable and easy to hide under the dash?

The B54 uses a thicker-than-average cable and reinforced connectors to withstand frequent plugging and the flex necessary when tucking devices under the dash. Its short length and slim profile make it ideal for concealing a GPS tracker or leaving a scanner connected without visible wire runs.

• Thicker cable construction for improved durability and less signal degradation.
• Compact connectors that fit into the factory recess for a low-profile install.
• Short 30cm length reduces slack and simplifies hiding devices out of sight.

Can I still use a diagnostic tool with the splitter installed?

Yes — standard OBDII diagnostic tools and code readers will function with the splitter in place. For accurate diagnostics, connect only the tool required and avoid running multiple devices that actively use conflicting communication channels at the same time.

• Compatible with most OBDII scanners and code readers.
• Works for intermittent checks or continuous monitoring devices like GPS units.
• Avoid simultaneous use of two devices that both attempt vehicle reprogramming or exclusive communication.

Who is this for? The bbfly B54 OBD2 Splitter is ideal for drivers, fleet managers, and installers who need to run two OBDII-capable devices without removing the factory connector. If you want a sturdy, short extension made for Ford and GM port layouts that keeps installations tidy and devices concealed under the dash, this splitter is a practical, plug-and-play solution. Confirm your vehicle uses a standard 16-pin OBDII port before purchasing.