J1939 9Pin to OBD2 16Pin Adapter Cable for Heavy Duty Truck Diagnostics
Structured Parameter Table
| Technical Attribute | Specification Details |
| Connector A | Deutsch J1939 9-Pin Male (Grey) |
| Connector B | OBD2 16-Pin Female |
| Pin Configuration | Pass-through Connection (Standard J1939 Mapping) |
| Compatibility | Cummins, Freightliner, Kenworth, Caterpillar, etc. |
| Material | Premium Grade PVC + Reinforced Housing |
| Protocol Support | Supports CAN Bus (J1939), K-Line, etc. |
| Application | Converting HD Diagnostic Port to Standard OBD2 |
Product Description
This J1939 9Pin to OBD2 adapter cable converts the heavy-duty truck’s J1939 port to a standard OBD2 connector, allowing you to use common diagnostic scanners and ELD devices.
Made of durable automotive-grade materials, it ensures stable data transmission for vehicle diagnostics and fleet management.
Usage Scenarios
Consumer Scanner for HD Trucks
Connect a standard handheld car code reader or a Bluetooth OBD2 dongle (like ELM327) to a heavy-duty truck to read and clear engine fault codes.
ELD Device Integration
Bridge the gap between an Electronic Logging Device (ELD) that uses a standard 16-pin OBD2 plug and a commercial vehicle equipped with a 9-pin J1939 port.
Fleet Maintenance & Telematics
Allow fleet managers to use universal telematics hardware across a diverse fleet of light-duty and heavy-duty vehicles by standardizing the interface.
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