Jaltest (JDC304A) | Wabco ATC/MTS 4+4-pins OBD - 16-pins OBD2 adapter cable | Bus
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Warranty handled directly by AsTools
We handle warranty cases ourselves, quickly and without the intervention of the manufacturer. Thanks to our own parts inventory and technical expertise, we can usually help you immediately. Only in exceptional cases do we still send the product to the supplier.
2 years warranty on all products
2 years warranty on all products
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Easy returns via Returnless
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Professional customer service
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The Jaltest JDC304A is an Adapter Cable designed to establish a connection between the specific Wabco ATC/MTS 4+4-pin diagnostic connector and a standard 16-pin OBD2 port of a reading device. This cable is developed for performing diagnostic tasks on systems found in various commercial vehicles, with a focus on Buses.
The cable facilitates communication with the electronic control unit (ECU) of Wabco ATC (Air Trailer Control) and MTS (Modular Trailer System). This makes it possible to read and clear fault codes, monitor live data, and configure specific system parameters using compatible diagnostic equipment. The design is aimed at use in a professional workshop environment.
Application and functionality:
This Adapter Cable is intended to connect a diagnostic interface to specific Wabco control units in Buses and other heavy vehicles.
- Diagnostic Connection: Creates a stable communication link between a 16-pin OBD2 diagnostic device and the Wabco ATC/MTS 4+4-pin port.
- System Access: Provides access to the ECU to perform diagnostic functions such as reading fault codes and analyzing sensor data.
- Compatibility: Specifically designed for use with Wabco ATC and MTS brake and control systems.
Compatible vehicles and Application:
This Adapter Cable is applicable to various commercial vehicles, especially Buses, equipped with a Wabco ATC (Air Trailer Control) or MTS (Modular Trailer System) with the corresponding 4+4-pin diagnostic connector. The cable is used for vehicles from brands that integrate Wabco systems, including:
- DAF
- Iveco
- MAN
- Mercedes-Benz
- Scania
- Volvo
Important: Before purchasing the product, always check the connection of your vehicle. This may vary by model and year.
Package Contents:
- 1x Jaltest (JDC304A) | Wabco ATC/MTS 4+4-pin OBD - 16-pin OBD2 Adapter Cable | Autobus
Technical specifications:
| Specification | Description |
|---|---|
| Product brand | Jaltest |
| Product model | JDC304A |
| Vehicle side connection | Wabco ATC/MTS 4+4-pin (male) |
| Adapter side connection | 16-pin OBD2 (female) |

To ensure that you always have access to the latest updates and software for your Jaltest device, it is important that you register the correct distributor.
Only the registered distributor can perform new software and updates. When you appoint us as your distributor, we can take care of this for you and guarantee that your device remains up-to-date without any issues.
How does it work?
-
Download and fill in the change form
You can find the form as a PDF file here. -
Send the completed form to us
This can easily be done by email to support@astools.eu. -
We take care of the rest
With the form, we at Jaltest can submit the change and officially register you as our customer.






