Jaltest (JDC216A9) | 3+3-pins J1939 - 16-pins OBD2 Adapter Cable | Commercial and Work Vehicle
Warranty directly via AsTools
Warranty directly via AsTools
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2 years warranty on all products
2 years warranty on all products
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Easy returns
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\nThe Jaltest JDC216A9 is included in the ongoing J1939 backbone of a vehicle and routes that databus to the 16-pin OBD2-inlet of your Jaltest diagnostic cable. From the OBD2 connector comes three branches: A grey 3-pin Deutsch connector with pins, an accompanying 3-pin connector with turquoise locking clip and an orange seal, and a separate power connector for power supply. Because both the male and female connectors are present, the cable harness connected whilst measuring. The cable measures 28 to 30 cm.\n
SAE J1939is the CAN standard used by heavy-duty vehicles to enable their control units to communicate: engine management, braking system, transmission and instrument cluster all connect to the sametwo-wire connector and use the same message structure. Because that structure and the 3-pin connectors are specified in the standard and not by a manufacturer, this adapter brand-independent. On machines where no separate diagnostic connector has been fitted, the backbone the only point where you access the bus. The cable is designed for the Jaltest Link V9 and falls under Jaltest CV (commercial vehicles).\n
KEY FEATURES
IMPORTANT NOTES
Applications and functionality
\nVia the backbone you connect directly to the J1939 bus. What you'll find there is not a fixed list: Every manufacturer hangs its own control units to the bus, and the range varies from a single engine management into a complete network. What you can accomplish depends on the Jaltest module including equipment falls.\n
Control units you can access
- The control units on the J1939 bus: Which units listen in varies by machine and manufacturer; engine, brake and transmission control are the typical participants.
- Measuring with the bus intact: The connection between those control units remains connected during measurement, so the machine continues to operate normally.
What you can do
- Read and clear fault codes: Access the fault memory of the connected control units and clear it after repair.
- View live data: Monitor current sensor and system values in real time.
- Activate components: Trigger actuators to verify their operation.
- Parameters, calibrations and service resets: For systems where Jaltest offers these procedures.
- Important: Which of these functions you see is determined by the machine and the Jaltest module it falls under, not by this cable.
Compatible vehicles and applications
The coupling in the backbone is what matters, not the brand. This adapter fits any commercial or work vehicle whose J1939 backbone is built with 3-pin Deutsch connectors. Because the standard specifies the connector and not the manufacturer, the same adapter works across different makes. For heavy vehicles and machines, no separate diagnostic port was ever mandated, which is why this setup is still found on newer machines.
Application:
- Commercial and work vehicles: With a J1939 backbone featuring 3-pin inline connectors.
- All manufacturers using this open standard: The standard defines the bus and connector, not the brand.
- Machines without a separate diagnostic port: Where the backbone is the only connection point.
Package contents
- 1x Jaltest (JDC216A9) | 3+3-pin J1939 - 16-pin OBD2 Adapter Cable | Commercial and Work Vehicles
Technical specifications
| Specification | Description |
|---|---|
| Brand | Jaltest (Cojali) |
| Reference number | JDC216A9 |
| Type | Adapter cable (backbone adapter) |
| Application | Diagnostics via the J1939 backbone of commercial and work vehicles |
| Length | 28 - 30 cm |
| Interface | Jaltest Link V9 |
| Vehicle-side connection | 3+3-pin J1939 (grey Deutsch connectors, inline in the backbone) with separate power connector |
| Interface-side connection | 16-pin OBD2 |
| Control units | The control units on the J1939 bus; which ones vary by vehicle and manufacturer |
| Segment | Commercial and Work Vehicles |
| Jaltest module | Jaltest CV (commercial vehicles) |

To ensure you always have access to the latest software updates and releases for your Jaltest device, it's important that you register the correct distributor.
Only the authorized distributor can perform new software installations and updates. When you designate us as your distributor, we can handle this for you and guarantee that your device stays current and runs smoothly.
How does it work?
-
Download and complete the change form
You can find the form as a PDF file here. -
Send us the completed form
You can easily do this by email to support@astools.eu. -
We'll take care of the rest
With the form, we can notify Jaltest of the change and officially register you as our customer.






