Jaltest (JDC211A) | German 6-pins – 9-pins J1939 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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The Jaltest JDC211A is the adapter cable that connects the 6-pin Deutsch diagnostic connector on commercial and work vehicles to a 9-pin J1939 connector, where you plug in the Jaltest 9-pin diagnostic cable. The 6-pin Deutsch connector is typically located in the cab near the dashboard; it's the older diagnostic connector following the SAE J1708/J1587 standard, used on heavy-duty vehicles and machinery before the transition to the 9-pin J1939 connector. According to the manufacturer's specifications, the cable is 28-30 cm long and compatible with Jaltest Link V8.1 and V9.
The cable opens the diagnostic line to the control units that the manufacturer has connected to that 6-pin connector, such as engine and transmission control. This is a connector adapter, not a system cable: it simply ensures correct pin mapping between the 6-pin Deutsch connector and the 9-pin J1939 cable, and which control units and functions you can access depends on the Jaltest coverage for the connected vehicle or machine. The cable falls under Jaltest CV (commercial vehicles).
KEY BENEFITS
IMPORTANT NOTES
Applications and features
This cable makes the connection; what you can then read out depends on the vehicle or machine you connect to.
Control units you can access
- Control units on the diagnostic line: Via the 6-pin Deutsch connector, Jaltest communicates with the control units that the manufacturer has connected on that line, such as engine and transmission control.
- Varies by vehicle: The manufacturer determines which systems are available on this connector; consult the Jaltest coverage for the specific vehicle or machine.
What you can do
- According to the vehicle's coverage: Fault codes, measured values, ECU data and other functions come from the Jaltest coverage of the connected vehicle or machine.
- The cable adds nothing and removes nothing: It simply provides the correct pin assignment between the 6-pin Deutsch connector and the 9-pin J1939 cable.
Compatible vehicles and applications
The connector is what matters, not the brand. This cable is for the 6-pin Deutsch diagnostic connector; check on site which connector you have in your cab.
Application:
- Commercial and work vehicles with a 6-pin Deutsch diagnostic connector
- Vehicle brand is not decisive: The cable follows the connector
- To be used with the 9-pin J1939 diagnostic cable from Jaltest
Package contents
- 1x Jaltest (JDC211A) | Deutsch 6-pin – 9-pin J1939 Adapter Cable | Commercial and Work Vehicles
Technical specifications
| Specification | Description |
|---|---|
| Brand | Jaltest (Cojali) |
| Reference number | JDC211A |
| Type | Adapter cable |
| Application | 6-pin Deutsch diagnostic connector (SAE J1708/J1587) |
| Vehicle-side connector | 6-pin |
| Interface-side connector | 9-pin J1939 |
| Control units | The control units connected by the manufacturer to the 6-pin diagnostic line, such as engine and transmission control modules; varies by vehicle |
| Category | Commercial and work vehicles |
| Jaltest module | Jaltest CV (commercial vehicles) |
| Length | 28-30 cm (manufacturer specification) |
| Compatible with | Jaltest Link V8.1 and V9 |
| Required to use | Jaltest Link with valid software license and the 9-pin J1939 diagnostic cable |

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.






