Volvo, as of 2013, introduced a new OBDII style diagnostic connector for Volvo chassis equipped with Volvo engines. While retaining the standard J1939 9-pin Deutsch connector for Volvo chassis with Cummins engines, this new interface presents a unique pinout configuration. Understanding this Obdii J1939 Pinout is crucial for diagnostics and utilizing J1939 devices with these newer Volvo trucks.
This new Volvo diagnostic connector incorporates two distinct CAN channels: CAN channel 1 utilizes ISO15765 protocol, while CAN channel 2 employs the J1939 protocol. Additionally, the connector accommodates J1708 communication. This setup allows for comprehensive vehicle diagnostics and data acquisition.
A dedicated adapter enables seamless connection between standard J1939 testers and this new Volvo connector, specifically targeting the J1939 protocol on Channel 2. This adapter facilitates the use of standard J1939 equipment, such as GPS units or other heavy equipment accessories, with the newer Volvo connector style.
The pinout for this new style Volvo diagnostic connector is detailed below:
| Pin Number | Signal |
|---|---|
| 3 | J1939+ |
| 5 | GND |
| 6 | ISO15765+ |
| 11 | J1939- |
| 12 | J1708+ |
| 13 | J1708- |
| 14 | ISO15765- |
| 16 | BATTERY |
The wiring connections for the J1939 to Volvo adapter are as follows:
| Volvo | Signal | J1939 |
|---|---|---|
| 5 | Ground | A |
| 16 | Battery | B |
| 3 | J1939-H | C |
| 11 | J1939-L | D |
| 12 | J1708+ | F |
| 13 | J1708- | G |
This detailed pinout information enables technicians and operators to effectively utilize J1939 diagnostic tools and integrate J1939 compatible equipment with Volvo trucks using the newer OBDII style connector. Understanding the specific signal assignments for each pin ensures proper communication and data transfer. The availability of a dedicated adapter simplifies this process, bridging the gap between legacy J1939 devices and Volvo’s updated diagnostic interface.
