The automotive diagnostic landscape is constantly evolving, and Volvo has introduced a shift in their connector technology for certain models. Since 2013, Volvo chassis equipped with Volvo engines feature a new OBD2 style diagnostic connector. This departure from the standard J1939 9-pin Deutsch connector, which Volvo retains for chassis with Cummins engines, presents a challenge for technicians and vehicle owners accustomed to traditional diagnostic tools. This new Volvo interface is designed with advanced capabilities, incorporating two separate CAN channels. Channel 1 utilizes ISO15765, while Channel 2 is dedicated to J1939 communication. Additionally, the connector supports J1708 protocol.
To address this connectivity challenge, the Obd2 Male To Male Adapter emerges as an essential tool. Specifically designed for Volvo’s new connector style, this adapter facilitates seamless communication between standard J1939 diagnostic equipment and Volvo vehicles. It effectively taps into Channel 2’s standard J1939 protocol, enabling users to employ their existing J1939 testers without needing to invest in entirely new systems. Beyond diagnostic tools, this adapter also supports the integration of standard GPS units and other J1939 heavy equipment accessories with the latest Volvo connector interface.
Understanding the pinout configuration is crucial for proper adapter utilization. The new style Volvo diagnostic connector pin assignment is detailed below:
| Pin Number | Signal |
|---|---|
| 3 | J1939+ |
| 5 | GND |
| 6 | ISO15765+ |
| 11 | J1939- |
| 12 | J1708+ |
| 13 | J1708- |
| 14 | ISO15765- |
| 16 | BATTERY |
The OBD2 male to male adapter ensures correct signal routing between the Volvo connector and the standard J1939 interface. The wiring connections are as follows, guaranteeing compatibility and reliable data transfer:
| Volvo Connector Pin | Signal | J1939 Connector Pin |
|---|---|---|
| 5 | Ground | A |
| 16 | Battery | B |
| 3 | J1939-H | C |
| 11 | J1939-L | D |
| 12 | J1708+ | F |
| 13 | J1708- | G |
This OBD2 male to male adapter is part of a broader family of adapters designed to solve various diagnostic and connectivity challenges in the heavy-duty vehicle sector. Similar adapters include J1939 Female to OBD2 Female adapters, useful for connecting OBD2 GPS trackers to J1939 vehicles, and J1939 Male to OBD2 Male adapters for using J1939 scan tools on OBD2 equipped J1939 vehicles. Other specialized adapters like the Volvo M-M Adapter, GMC Top Kick M-M Adapter, Hino Truck M-M Adapter, and Allison to J1939 Adapter cater to specific vehicle makes and models, addressing unique connector configurations and data protocols.
In conclusion, the OBD2 male to male adapter for Volvo J1939 systems is a vital component for maintaining diagnostic efficiency and accessory compatibility in modern Volvo trucks. It provides a straightforward and cost-effective solution for bridging the gap between Volvo’s advanced OBD2 style connector and the widely adopted J1939 standard. For specialized needs or unique configurations not covered by standard adapters, custom cable solutions are also available, ensuring that all diagnostic and connectivity requirements can be met.
