Volvo, starting in 2013, introduced a new OBD2 style diagnostic connector for Volvo chassis equipped with Volvo engines. This change was implemented while Volvo maintained the standard J1939 9-pin Deutsch connector for Volvo chassis using Cummins engines. The new interface is designed with two separate CAN channels: Channel 1 for ISO15765 and Channel 2 for J1939, and it also incorporates J1708 within the connector. This evolution necessitates a clear understanding of the Obd2 J1939 Pinout to ensure compatibility with diagnostic tools and accessories.
This adaptation in connector style can initially pose a challenge when trying to interface with standard J1939 equipment. Fortunately, adapters are available to bridge this gap. These adapters, like the Volvo J1939 (OBD2 Style Male) to J1939 (Male) Adapter, are crucial for utilizing standard J1939 testers and accessories with the new Volvo connector. Specifically, these adapters are engineered to tap into Channel 2, which carries the standard J1939 protocol. This compatibility extends to GPS units and other J1939 heavy equipment accessories, ensuring they can function seamlessly with the newer Volvo connector style.
To effectively utilize these adapters and understand the connections, it’s essential to know the obd2 j1939 pinout for the new Volvo diagnostic connector. Below is a detailed pinout diagram:
| Pin Number | Signal |
|---|---|
| 3 | J1939+ |
| 5 | GND |
| 6 | ISO15765+ |
| 11 | J1939- |
| 12 | J1708+ |
| 13 | J1708- |
| 14 | ISO15765- |
| 16 | BATTERY |
This pinout reveals how the new Volvo connector integrates various communication protocols within a single OBD2 style interface. For practical application, especially when using the adapter, understanding the wiring connections is vital. The following table outlines the wiring connections for the adapter, mapping the Volvo OBD2 style connector pins to the standard J1939 9-pin connector:
| Volvo | Signal | J1939 |
|---|---|---|
| 5 | Ground | A |
| 16 | Battery | B |
| 3 | J1939-H | C |
| 11 | J1939-L | D |
| 12 | J1708+ | F |
| 13 | J1708- | G |
This wiring configuration ensures that when you use the adapter, the J1939 signals are correctly routed to your standard J1939 diagnostic tools or accessories. The adapter effectively translates the new Volvo obd2 j1939 pinout to the conventional 9-pin J1939 interface.
Beyond the Volvo specific adapter, there are similar adapters designed for various applications. For instance, the J1939 Female to OBD2 Female adapter allows connection of an OBD2 style tester to a J1939 vehicle, commonly used for GPS trackers. Conversely, the J1939 Male to OBD2 Male adapter enables a J1939 Scan Tool to be used with a J1939 equipped vehicle that utilizes a standard OBD2 style connector. Other specialized adapters, like those for GMC Top Kick, Hino Trucks, and Allison transmissions, cater to specific vehicle models and diagnostic needs, often addressing variations in pin assignments or protocol usage within OBD2 style connectors.
In conclusion, understanding the obd2 j1939 pinout for Volvo’s new diagnostic connector is crucial for anyone working with these vehicles. The Volvo J1939 adapter provides a straightforward solution for maintaining compatibility with standard J1939 tools and accessories, ensuring that diagnostics and data access remain seamless despite the change in connector style. For those with unique needs or configurations not covered by standard adapters, custom cable solutions are also available, offering flexibility and tailored connectivity.
