Jaltest (JDC536A) | Komatsu 12-pins OBD – 16-pins OBD2 Adapter Cable | Off-road and Construction Machine
Warranty directly via AsTools
Warranty directly via AsTools
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2 years warranty on all products
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The Jaltest JDC536A is the diagnostic cable for the rectangular 12-pin connector from Komatsu-earthmoving equipment; the cable converts that proprietary connector to 16-pin OBD2-input of the Jaltest equipment. The connector is located in the cab. The same plug is found on track excavators, wheeled excavators, wheel loaders, bulldozers and dump trucks covered by Jaltest in the Komatsu range.
Through this connection, the diagnostic equipment accesses the machine network and thereby the engine control system ENG, the hydraulic control PUMP, the instrument panel MON and, on the wheel loaders, the transmission control unit TRANS. With these control units, fault codes, measured values and maintenance data are covered: ECU data and additional actions are not included. Construction equipment is not subject to OBD requirements, which is why Komatsu has retained this connector across multiple machine generations. The cable falls under Jaltest OHW (Off-Highway Machines).
KEY FEATURES
KEY POINTS
Applications and features
Through this connection, you can access the machine's control units using Jaltest software. Which systems are available varies by series and configuration.
Control units you can access
- ENG, Engine Control Module: The machine's engine control, including fault codes, measured values, and maintenance data.
- PUMP, Hydraulic System: The hydraulic pump system control.
- MON, Instrument cluster: The instrument panel in the cab.
- TRANS, Transmission: The transmission control unit, found on WA wheel loaders.
What you can do
- Read and clear fault codes: Access the control unit's fault memory with descriptions of detected faults.
- View measured values: Check real-time sensor readings connected to the control unit, displayed as numbers and graphs.
- Review maintenance data: Check maintenance intervals and completed service work per control unit, with service report.
Compatible vehicles and applications
The connector type determines compatibility, not the model. This cable fits any Komatsu earthmoving machine with the 12-pin diagnostic connector. Jaltest OHW covers the series listed below; check which connector is installed in your cab on-site.
Komatsu:
- PC-6 series crawler excavators (PC 200-6, PC 300-6K, PC 400-6, PC 600-6, PC 700-6): (approx. 1995 - 2004)
- PC-7 series crawler excavators (PC 200-7, PC 300-7, PC 400-7, PC 600-7, PC 800-7, PC 1200-7): (approx. 2002 - 2006)
- PC-8 series tracked excavators (PC 200-8, PC 300-8, PC 400-8, PC 600-8, PC 800-8, PC 2000-8): (approx. 2006 - 2013)
- PW series mobile excavators (PW 100-6K, PW 100-7, PW 200-7): (approx. 1996 - 2008)
- WA series wheel loaders (WA 300-5 through WA 900-8)
- D series bulldozers (D 60-15/16/17/18, D 80-15/18, D 300-5/6/8, D 400-5)
- HD series rigid dump trucks (HD 300-7, HD 400-7, HD 600-7, HD 700-7/8)
- HM series articulated dump trucks (HM 300-1/-2, HM 400-2/-3)
Package contents
- 1x Jaltest (JDC536A) | Komatsu 12-pin OBD – 16-pin OBD2 Adapter Cable | Heavy Equipment & Construction Machinery
Technical specifications
| Specification | Description |
|---|---|
| Brand | Jaltest (Cojali) |
| Reference number | JDC536A |
| Type | Adapter cable |
| Application | Komatsu earthmoving equipment |
| Vehicle-side connector | 12-pin OBD |
| Interface-side connector | 16-pin OBD2 |
| Control units | ENG (engine control), PUMP (hydraulics), MON (instrument cluster) and TRANS (transmission) |
| Segment | Heavy Equipment & Construction Machinery |
| Jaltest module | Jaltest OHW (Off-Highway machines) |
| Part of cable kit | OHW complete cable kit (70002026) |
| Required for 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.






