Jaltest (JDC612A) | Yanmar 3-pins OBD - 16-pins OBD2 Adapter Cable | Internal combustion engine
Warranty directly via AsTools
Warranty directly via AsTools
We handle warranty cases ourselves, quickly and without involving the manufacturer. Thanks to our own parts inventory and technical expertise, we can usually assist 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
All our products come with a 2-year factory warranty. This ensures you long-lasting quality and service.
Easy returns
Easy returns
You can easily request your return through your account. We will send you the return label by email. Return shipping costs are your responsibility.
Professional customer service
Professional customer service
Our experts are ready to help you quickly and professionally, both online and in our physical store. Questions? Feel free to contact us!
The Jaltest JDC612A is officially described as a diagnostic cable for Yanmar, 3-pin and connects the 3-pin connector of Yanmar inboard engines to the standard 16-pin OBD2-interface. The connector is located in the engine bay, on or beside the engine. The cable measures 28 to 30 cm and is compatible with Jaltest Link V8.1 and V9.
On the interface side, there is a black 16-pin OBD2 connector with the OBD symbol on the housing. On the engine side, there is a light grey connector with a rounded triangular profile, containing three pins arranged around a green wedge. It is a straight cable with no branch connections, shorter and simpler in design than the 6-pin JDC538A for industrial engines, which features a rectangular grey connector with an orange wedge. The cable falls under the Jaltest Marine range.
KEY BENEFITS
IMPORTANT NOTES
Applications and functionality
Through this connection you access with the Jaltest software the Yanmar engine control units and those of the operator panel. Which units are available depends on the engine series installed.
Control units you can access
- EDC Yanmar Bosch — engine controller: The Bosch engine controller, with the most comprehensive function list of the four: Fault codes, measured values, component control, ECU data, parameters and live data.
- EDC Yanmar Generic — engine controller: Fault codes, measured values, ECU data and live data.
- Engine control module (ECM): The control unit for the BY series and others, featuring fault codes, measured values, ECU data and live data.
- VC10 and VC20 — control panel: The electronic module of the panel, with ECU data, parameters, calibration and reset, but no fault codes.
What you can do
- Read fault codes: Access the fault memory of the engine control unit, with descriptions of detected faults.
- View measured values and monitor live data: Real-time sensor readings from the engine control module, monitored whilst the engine is running.
- Control components: With the EDC Yanmar Bosch system, you can operate actuators directly.
- Parameters, calibration and reset: Parameters for the Bosch engine control unit and panels; calibration and reset are limited to the VC10 and VC20 panels.
Compatible vessels and applications
The connector type determines compatibility, not the model. This cable fits any Yanmar inboard engine with the triangular 3-pin connector. The following series are covered by Jaltest Marine; if you see a rectangular grey connector with an orange wedge on the engine block, it is an industrial engine and requires the JDC538A.
Yanmar:
- JH series: 3JH40, 4JH45, 4JH57, 4JH80 and 4JH110
- BY series: 4BY-150 to 6BY3-260Z, including BY2 and BY3 variants
- LV series: 4LV150, 4LV170, 4LV195, 4LV230, 4LV250 and the 8LV-320, 8LV-350 and 8LV-370
- SY and AYEM series: 6SY-STP2, 6SY655, 8SY-STP and the 6AYEM-GT, 6AYEM-ET and 6AYEM-ST
- Control panels: The VC10 and VC20 panels supplied with these engines
Package contents
- 1xJaltest (JDC612A) | Yanmar 3-pin OBD to 16-pin OBD2 Adapter Cable | Internal Combustion Engine
Technical specifications
| Specification | Description |
|---|---|
| Brand | Jaltest (Cojali) |
| Reference number | JDC612A |
| Type | Adapter cable |
| Application | Yanmar inboard engines |
| Engine-side connector | 3-pin OBD, triangular grey connector with green wedge |
| Interface-side connector | 16-pin OBD2 |
| Length | 28 to 30 cm |
| Interface | Jaltest Link V8.1 and V9 |
| Control units | EDC Yanmar Bosch, EDC Yanmar Generic and ECM (engine), VC10 and VC20 (control panel) |
| Segment | Internal combustion engine (marine) |
| Jaltest module | Jaltest Marine |
| Part of cable set | Marine cable set vessel (70002008) and inboard (70002009) |

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.






