Digital Yacht J1939 Doctor Diagnostic Tool
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Digital Yacht J1939 Doctor Diagnostic Tool
J1939 Doctor Diagnostic Tool
Self-contained J1939 diagnostics tool with physical network and data analysis on your phone, tablet, PC, or MAC.
The J1939 protocol is increasingly being adopted in marine applications, providing monitoring and control for engines, propulsion systems, generators, and electrical networks. To support this trend, a self-contained J1939 diagnostics tool has been developed, featuring a built-in web interface that allows any device with a browser to connect and analyze data seamlessly. With wireless connectivity to mobile devices, users can access critical information from anywhere on the vessel without the need for physical connections.
This diagnostic tool not only monitors the J1939 network but also checks its physical characteristics, including voltages, bus load, and frame errors. Users can view all devices connected to the network and drill down into specific data for detailed analysis. Its flexibility is enhanced by an M12 connector, which supports a wide variety of third-party patch cables and breakouts, making it compatible with diverse setups.
Easily monitor and manage device fault codes with our user-friendly interface. Click the Fault (Red Cross) icon to view active and historical codes in a clear pop-up. The DM1 Table displays the currently active fault codes, while the DM2 Table provides a record of historical faults.
If a fault condition remains active after clearing, the system automatically detects and displays it again during the next PGN transmission, ensuring you always have accurate, up-to-date diagnostic information at your fingertips.
For more in-depth analysis, you can also view detailed information for a specific PGN by clicking the Info icon located at the end of that PGN’s row. This will open a pop-up window displaying all relevant data for precise monitoring and troubleshooting.
Powering the tool is equally versatile. It can draw power directly from the J1939 network (12/24V) or operate from a separate DC supply through the breakout connection. To support reporting and documentation, the tool allows users to print detailed network reports directly from the browser, just as they would with any standard document, simplifying record-keeping and diagnostics.
Operation
You can configure the J1939 Doctor through its own simple web interface. Just open your web browser, enter the J1939 Doctor’s IP address, and you can access the J1939 Doctor web interface. So, no complicated programming software or app required.
Through the web interface, you can analyse all the equipment connected to the network and get additional information about the equipment. You can also display all of the PGNs being received.
The health section gives you an overview of the network (supply voltage, bus capacity, etc.).
Features:
- J1939 is increasingly used on boats for engine, propulsion, generator, and electrical monitoring
- Self-contained J1939 diagnostics tool with built-in web interface, allowing any device with a browser to connect and analyse data
- Wireless connectivity to the mobile device
- Checks physical characteristics of the J1939 network, such as voltages, bus load, and frame errors
- Allows viewing of devices and data on the J1939 network
- Drill down on data for analysis
- Fitted with an M12 connector from which a wide variety of 3rd party patch cables and breakouts can be connected
- Can operate from J1939 network power (12/24v) or from a separate DC supply via breakout
- Print reports of the network via the browser, just as you would any document
Specifications:
- Dimensions: 105 x 72 x 32mm
What's In The Box?
- 1m drop cable with male M12 Device Net connector
- WiFi antenna built-in
Manufacturer Part Number: ZDIGJDOC
| Special Shipping Message | Free Ground Shipping* |
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| Manufacturer Part Number: | ZDIGJDOC |
Return Policy
Hodges Marine accepts returns for up to thirty (30) days after shipment. Our return policy does not apply to the following goods: Open software, mapping/chart data cards, programmed AIS units, opened/registered KVH Starlink products, trolling motors, international orders, freight truck only items, and special order items. These items are not eligible for return, refund or exchange. Shipping charges (if any) are non-refundable. If your return is accepted by Us, We will provide one of the following within a reasonable time: an exchange of merchandise for the item returned, a non-transferable merchandise credit, a credit to the payment card or original method of payment used to pay for the item, a check, or another remedy that we determine in good faith is appropriate in the circumstances. Customer must request a return merchandise authorization (RMA) through the product returns link on our website or by emailing us at [email protected]. A RMA number will be issued with instructions for returning the package within a reasonable time (normally 1-3 business days).
Defective Products:
A prepaid return shipping label will be provided for defective items if deemed necessary by the manufacturer. The customer must first contact the manufacturer for technical support to confirm product is defective and that product replacement is deemed necessary. Please provide the name of the technician, serial number, and details about the defect. Return instructions and a label will be provided.
Non-Defective Returns:
Eligible non-defective products may be returned for a full refund minus shipping paid (if any). To be eligible for a non-defective return, your merchandise must be unused/unopened and must be in the original packaging. Non-defective returns that show signs of installation/use, missing parts/packaging, missing proof of purchase/UPC code, or have serial numbers that do not match our records will not be accepted. Customer is responsible for return shipping costs of non-defective returns. You should consider using a trackable shipping service or purchasing shipping insurance for items of value. Hodges Marine is not liable for lost or damaged return packages.
General - Cancellations, Shipping Damage, Missing Packages, Shipment Refusals:
Orders that you submit online are processed immediately and may not be cancelled, and you may need to wait until you receive the merchandise in order to return it. Claims of shipment damage, incorrect/missing items, or non-receipt of goods must be made within seven (7) days. Customer is responsible for all costs associated with refused shipments or return to sender (RTS) shipments including carrier fees, freight to the customer, and return freight. We reserve the right to refuse returns that are sent COD, without a return authorization, show signs of undisclosed installation/use, has missing parts/packaging, missing proof of purchase/UPC code, or have serial numbers that do not match our records. If you do not comply with any of the above conditions, We reserve the right to refuse the return/exchange, or to impose different or additional conditions. Please see our TERMS AND CONDITIONS for additional applicable information.
Last Updated: JUNE 09 2026
Please email us at [email protected] or use the product returns link.











