What are the common types of J1939 to OBD2 cables?

What are the common types of J1939 to OBD2 cables?

The common types of J1939 to OBD2 cables mainly include the following:

J1939 9-pin male to OBD2 16 pin female cable

This type of cable uses the J1939 standard 9-pin male connector to connect to the heavy-duty vehicle interface, and the other end is the OBD2 standard 16 pin female connector, suitable for diagnostic equipment. Its design supports the CAN bus protocol, which enables stable transmission of vehicle ECU data and diagnostic instruments. It is commonly used for diagnosis and data recording of heavy-duty vehicles such as trucks and construction machinery.

J1939 9-pin female  to OBD2 16 pin female splitter Y cable

This type of cable is equipped with J1939 9-pin female head and OBD2 16 pin female head, and multiple devices are connected in parallel through a Y-shaped structure. Users can simultaneously access diagnostic devices, GPS trackers, etc. through the splitter to avoid damaging the original vehicle route, which is suitable for vehicle modification or fleet management scenarios that require extended interfaces.

J1939 9-pin female to OBD2 16 pin male cable

For some vehicles that use a 9-pin J1939 interface, this type of cable converts the 9-pin interface to an OBD2 16 pin female head to ensure compatibility. Its design meets the diagnostic requirements of specific vehicle models and is suitable for vehicle systems with interface specifications different from mainstream 9-pin.  

J1939 to OBD2 cable with overcurrent/short circuit protection

Some cables are equipped with overcurrent and short-circuit protection modules, which can automatically cut off the circuit in case of abnormal current to prevent equipment damage. This type of cable is suitable for complex electromagnetic environments or scenarios with high safety requirements, such as industrial vehicles, special equipment, etc.

Customizable length J1939 to OBD2 cable

Multiple length options are provided, and users can choose the appropriate specifications based on the vehicle layout and equipment location. Customized design meets different installation requirements and is suitable for special scenarios where space is limited or long-distance transmission is required.

Waterproof and dustproof J1939 to OBD2 cable

Made of high-strength nylon or PVC material, with waterproof and dustproof properties, suitable for outdoor or harsh environments. This type of cable can resist interference such as moisture and dust, ensuring stable operation in scenarios such as construction vehicles and agricultural machinery.

J1939 to OBD2 extension cable assembly

Integrated Y splitter, extension cable and other functional modules, supporting multi device cascading or long-distance transmission. Component based design facilitates flexible configuration and is suitable for professional diagnostic systems that require complex interface expansion or long-distance wiring.