OBD2 1-to-2 Splitter Extension Cable
The OBD2 Splitter Cable provides two female 16-pin diagnostic connections from a single vehicle OBD2 port, allowing compatible diagnostic and monitoring devices to be connected more conveniently.
The cable features one standard 16-pin male connector for the vehicle and two female 16-pin connectors for compatible OBD2 equipment. Its flexible design makes it useful in workshops, testing environments and vehicle installations where additional access to the diagnostic port is required.
Main Features
• One OBD2 male connector to two OBD2 female connectors
• Standard 16-pin connector design
• Converts one vehicle diagnostic port into two connection points
• Flexible cable for easier positioning and installation
• Protective braided outer sleeve
• Secure connector housings with locking tabs
• Reduces repeated connection and disconnection from the vehicle port
• Suitable for workshops, technicians and vehicle monitoring installations
• Plug-and-play design with no driver or software installation
Compatible Equipment
The splitter cable may be used with compatible 16-pin OBD2 equipment, including:
• ELM327 diagnostic adapters
• Bluetooth OBD2 scanners
• WiFi OBD2 scanners
• Wired diagnostic interfaces
• GPS tracking devices
• Vehicle data loggers
• OBD2 monitoring devices
• Head-up displays
• Insurance monitoring devices
• Compatible Launch, ThinkDiag, Autel, Xtool and Vgate interfaces
• Other equipment fitted with a standard 16-pin OBD2 connector
Compatibility depends on the vehicle, connected devices, required pins and communication protocols.
Common Applications
• Connecting an OBD2 scanner while another monitoring device is installed
• Using a diagnostic tool without removing a GPS tracker
• Extending and relocating the vehicle’s diagnostic connection
• Keeping monitoring equipment hidden behind the dashboard
• Providing easier access to the diagnostic port
• Connecting test equipment during vehicle troubleshooting
• Protecting the vehicle’s original OBD2 connector from frequent use
How to Use
- Turn the vehicle ignition off.
- Connect the male plug to the vehicle’s OBD2 port.
- Connect the required device to one of the female connectors.
- Connect a second compatible device only when necessary.
- Confirm that all connectors are fitted securely.
- Turn the ignition on and start the required diagnostic or monitoring application.
- Disconnect unused equipment after completing the procedure.
Important Safety Information
The cable physically allows two devices to be connected, but this does not guarantee that both devices can communicate simultaneously.
Two active diagnostic scanners should not send commands to the vehicle network at the same time. Simultaneous communication may cause:
• Communication errors
• CAN-bus conflicts
• Loss of connection with vehicle modules
• Incorrect diagnostic results
• Failed coding or programming operations
For normal diagnostics, connect only one active scanner. A second port may be used for a passive or compatible monitoring device when its operation has been verified.
Important Notes
• This product is a splitter cable only and does not perform vehicle diagnostics.
• Diagnostic scanners and software are sold separately.
• Verify the required pin connections before using specialised equipment.
• Both female connectors may share vehicle power and communication lines.
• The combined current consumption of connected devices must remain within the vehicle diagnostic circuit’s safe capacity.
• Do not connect damaged, short-circuited or unknown equipment.
• Do not use two programming tools simultaneously.
• Use a direct connection instead of a splitter for sensitive ECU coding or programming whenever possible.
• Keep the cable and connected devices away from the accelerator, brake and clutch pedals.
• Disconnect unnecessary devices when the vehicle is parked to prevent battery drain.
• Compatibility with specialised manufacturer interfaces must be confirmed before use.
Package Includes
• 1 × OBD2 16-Pin Male-to-Dual-Female Splitter Cable
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