These diagnostic adapter connectors let a scan tool with a DB9, DB25 or J1939 interface talk to a vehicle through its standard OBD2 16-pin port. They cover both four-wheel vehicles and motorcycles, where the diagnostic connector is often a manufacturer-specific shape rather than the standard J1962 socket.
We stock a range of common combinations, so a bench serving mixed fleets — car tools with DB9 ends, truck tools on J1939, motorcycle adapters for the odd-shaped bike sockets — can pick the bridge it needs instead of buying a whole new interface. All are passive pin-routing adapters: the intelligence lives in your scan tool, the adapter just connects.
One honest scope note that runs across this whole family: a passive adapter changes the connector and routes the pins that the vehicle’s interface shares with OBD2 — it does not add protocols. Which systems a scan tool actually reads depends on the vehicle and the tool software, not on this cable.
Key features
- DB9 / DB25 / J1939 tool ends to OBD2 16-pin
- Covers four-wheel vehicles and motorcycles
- Common shapes stocked; per-order variants
- Passive routing — tool-agnostic
- RoHS-compliant materials
Specifications
| Type | Passive diagnostic adapter family |
| Tool side | DB9, DB25 or J1939 per variant |
| Vehicle side | OBD2 16-pin J1962 or bike-specific |
| Working temp | −30 to +80 °C |
| Materials | RoHS-compliant |
Typical applications
- Mixed car/motorcycle workshop benches
- Truck tools reaching light vehicles via J1939
- Motorcycle-specific socket coverage
Custom and OEM options
State your tool interface and target vehicle; the matching variant ships per order, samples in 3–7 days.
FAQ
How do I pick the right variant?
Two facts decide it: your tool’s connector (DB9/DB25/J1939) and the vehicle’s socket. Send both and we match the adapter.
Do these add functions to my tool?
No — they are passive connectors. Coverage follows the tool and vehicle.
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Request a Quote
Tell us the spec and quantity — we reply with price, MOQ and lead time within 24 hours.
Samples, packing options, payment terms and warranty conditions are set out in How to Order and Delivery Information.
