Jaltest (JDC535A) | Hitachi 6-pins OBD – 16-pins OBD2 Adapter Cable | Off-road and Construction Machine
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The Jaltest JDC535A is the adapter cable for Hitachi excavators, wheel loaders and dump trucks equipped with the manufacturer's proprietary 6-pin diagnostic connector; the vehicle-side connector is fitted with this plug, while the interface side features the 16-pin OBD2 connection for your Jaltest diagnostic cable. The 6-pin connector is located in the cab.
With this connection, the Jaltest equipment reads not only the Isuzu engine control unit, but also the machine-side systems of the Hitachi: The central computer MC, the gateway ICF and the instrument cluster MON are all on the same line. The Isuzu 4HK1/4JJ1 control unit is supported via both CAN and K-Line protocols. The difference in coverage lies with the ICF gateway, from which Jaltest reads fault codes only. Construction equipment has never been required to have a 16-pin OBD2 connector, which means this adapter remains in use on recent Zaxis machines. The cable falls under Jaltest OHW (Off-Highway machines).
KEY BENEFITS
IMPORTANT NOTES
Applications and Features
Through this connection, you can access the machine's control units using Jaltest software. Which systems are available varies by model and configuration.
Control Units You Can Access
- MC, Body Computer: The main machine computer, with fault codes, measured values, and ECU data.
- ICF, Gateway: The machine network gateway; Jaltest reads fault codes from this unit.
- 4HK1, 4JJ1 (CAN) Isuzu, Electronic Diesel Control, Common Rail: The common-rail engine control of newer Zaxis generations, including additional functions.
- 4HK1, 4JJ1 (K Line) Isuzu, Electronic Diesel Control, Common Rail: The same engine family using older K-Line communication.
- ECM, Engine Control Module: Engine control on machines without Isuzu-specific management.
- MON, Instrument Cluster: The cab instrument panel.
What You Can Do
- Read and Clear Fault Codes: Access the control unit's fault memory with detailed descriptions of detected faults.
- View Measured Values: Monitor real-time sensor readings connected to the control unit, displayed as numbers and graphs.
- Check Maintenance Data: Available for the engine control unit, showing maintenance intervals and service reports.
- Perform Additional Functions: Available only for Isuzu engine control on CAN; these functions are not available on the K-Line variant.
Compatible Vehicles and Applications
The connector type is what matters, not the machine model.This cable is compatible with any Hitachi machine equipped with the 6-pin diagnostic connector. The Jaltest OHW coverage includes the series listed below; check which connector is installed in your cab on-site.
Hitachi:
- Zaxis ZX-3 series (ZX100-3 through ZX800-3): (2007 - 2013)
- Zaxis ZX-5 series (ZX100-5 through ZX800-5): (2013 - 2016)
- Zaxis ZX-6 series (ZX100-6 through ZX800-6): (2016 - 2021)
- Zaxis ZX-7 series (ZX100-7 through ZX800-7, Stage V): (approx. 2019 - present)
- ZW wheel loaders (ZW100-6/-7, ZW200-5/-6/-7, ZW300-5/-6/-7, ZW500-5/-6): Year of manufacture not critical
- EX mining excavators (EX1200-6/7, EX1900-6, EX2500-6, EX3600-6, EX5500-6, EX5600-6/7, EX8000-6): Year of manufacture not critical
- EH dump trucks (EH1100-3/-5, EH3500-3, EH4000-3, EH5000-3): Year of manufacture not critical
- ZH200-5 / ZH200-6 hybrid excavators: Year of manufacture not critical
Package contents
- 1x Jaltest (JDC535A) | Hitachi 6-pin OBD – 16-pin OBD2 Adapter Cable | Construction & Earthmoving Equipment
Technical specifications
| Specification | Description |
|---|---|
| Brand | Jaltest (Cojali) |
| Reference number | JDC535A |
| Type | Adapter cable |
| Application | Hitachi excavators, wheel loaders and dump trucks |
| Vehicle-side connector | 6-pin OBD |
| Interface-side connector | 16-pin OBD2 |
| Control Units | MC (body computer), ICF (gateway), Isuzu 4HK1/4JJ1 (CAN and K-Line), ECM (engine control) and MON (instrument cluster) |
| Segment | Off-Highway and Construction Equipment |
| Jaltest module | Jaltest OHW (Off-Highway machines) |
| Part of cable set | OHW complete cable set (70002026) |
| 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.






