Jaltest (JDC110A) | 7+7-pins (CAN ISO 7638-1) - 16-pins OBD2 Adapter | Trailer
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The Jaltest JDC110A is the cable that converts the standardized 7+7-pin ISO 7638-1 connection between tractor and trailer into the standard 16-pin OBD2 connector of your Jaltest diagnostic cable. This ISO 7638-1 connection is located at the front of the trailer, at the coupling with the tractor; with a length of 22-29 cm, you'll be working right at that coupling point. Jaltest supplies the cable for 24V and for the Link V8.1 and V9.
Through this connection, your diagnostic equipment accesses the trailer's CAN network and the control units connected to it — primarily the ABS/EBS, for which ISO 7638-1 provides the standardized power and CAN connection. Because this connector is standardized, you can access it regardless of which chassis manufacturer built the trailer; which units you see depends on the trailer itself and the modules in your license. Trailers have no OBD requirement, so this connector remains in use even on newer trailers. The cable falls under Jaltest CV (commercial vehicles).
KEY BENEFITS
IMPORTANT NOTES
Applications and functionality
Via the ISO 7638-1 connection you access the trailer's CAN network. Which control units are on it varies by trailer.
Control units you can access
- Trailer ABS/EBS: ISO 7638-1 is the standardized power and CAN connection for this system.
- Other control units on the trailer's CAN network: Which ones are present varies by trailer and chassis manufacturer.
What you can do
- Read and clear fault codes: Access the fault memory of connected control units and clear it after repairs.
- View live data: Monitor current sensor and system values in real time.
- Activate components: Trigger actuators to test their operation.
- Parameters, calibrations and service resets: Where Jaltest offers them for the relevant system.
Compatible vehicles and applications
The connector type matters, not the brand. This cable fits any semi-trailer or trailer with a 7+7-pin ISO 7638-1 connector that runs CAN. Check which connector your trailer has on site.
- Semi-trailers and trailers with a 7+7-pin ISO 7638-1 connector
- All chassis manufacturers using this standardized connection
- Model year doesn't matter: Trailers have no OBD requirement, so the cable remains compatible with newer semi-trailers
Package Contents
- 1x Jaltest (JDC110A) | 7+7-pins (CAN ISO 7638-1) - 16-pins OBD2 Adapter | Trailer
Technical Specifications
| Specification | Description |
|---|---|
| Brand | Jaltest (Cojali) |
| Reference Number | JDC110A |
| Type | Adapter Cable |
| Application | Trailer diagnostics via CAN on ISO 7638-1 |
| Vehicle-Side Connection | 7+7-pins (CAN ISO 7638-1) |
| Interface-Side Connection | 16-pins OBD2 |
| Control Units | ABS/EBS of the trailer and other control units on the CAN network; availability varies by trailer |
| Cable Length | 22-29 cm (per Jaltest catalog specifications) |
| Link Version | V8.1 / V9 |
| Voltage | 24V |
| Segment | Trailer |
| Jaltest Module | Jaltest CV (Commercial Vehicles) |
| Part of Cable Set | Trailer Cable Set (70002024) |
| Required to Use | Jaltest Link with valid software license |

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.






