Komatsu diagnostics cable

Jaltest JDC536A - Komatsu Diagnostics Cable

The Jaltest JDC536A is a genuine Cojali diagnostic cable for Komatsu heavy construction and mining equipment. Komatsu is one of the world's largest equipment manufacturers, producing excavators, bulldozers, wheel loaders, motor graders, dump trucks, and a wide range of other machines. For shops running Jaltest OHW software, the JDC536A is the cable that connects the Jaltest Link to the Komatsu diagnostic port — enabling fault code access, live data monitoring, and supported calibration functions on Komatsu equipment.

What This Cable Does

The JDC536A provides the physical connection from the Jaltest Link interface to the diagnostic port on Komatsu heavy equipment. With the cable connected and the Jaltest OHW license active, technicians can perform comprehensive electronic diagnostics on Komatsu machines using the Jaltest platform.

• Compatible brand: Komatsu heavy equipment (from 1995 to present)
• Typical applications: Komatsu PC-series excavators, D-series bulldozers, WA-series wheel loaders, GD-series motor graders, HD-series dump trucks, and other Komatsu construction and mining equipment
• Supports all major Komatsu diagnostic protocols
• Compatible Jaltest modules: Jaltest OHW (Off-Highway/Construction Equipment)
• Works with Jaltest Link V8.1 and V9
• Genuine Cojali product
• Listed in Jaltest 2025 Pricelist: Part number JDC536A, MSRP 30.00

Who Needs This Cable

Any shop running Jaltest OHW that works on Komatsu equipment needs the JDC536A. Komatsu has a massive installed base in North America — PC excavators are among the most common machines on construction sites, and their D-series dozers are a staple of earthmoving operations. Equipment dealers, rental companies with Komatsu fleets, mining operations, and all-makes construction equipment shops regularly encounter these machines.

The cable covers a broad range — Komatsu machines from 1995 to current production — making it relevant for both older equipment still in service and new iron straight off the dealer lot.

Diagnostic Capabilities With Jaltest OHW

With the JDC536A connected and the Jaltest OHW license active:

• Engine fault code reading and clearing on Komatsu SAA/SA engine families (Komatsu-built Tier 4 Final engines)
• Live monitoring of engine, hydraulic, and transmission parameters
• DPF regeneration and aftertreatment system resets on Tier 4 Final machines
• Hydraulic system calibrations and pressure adjustments
• Transmission and power train diagnostics
• Work equipment (boom, arm, bucket) system diagnostics on excavators

Technical Details

• SKU / Part Number: JDC536A
• Compatible machines: Komatsu construction and mining equipment, 1995 to present
• Manufacturer: Cojali (Jaltest)
• Compatible Software: Jaltest OHW (active license required)
• Compatible Link Versions: V8.1 / V9
• Price (2025 Pricelist): 30.00

Why Buy From OEM Diagnostic Tools?

We have specialized in Jaltest since 2016 and have helped construction equipment shops across the country set up their Jaltest OHW systems. The JDC536A ships free with full manufacturer warranty. If you are building out your Jaltest OHW cable set for Komatsu work, call us at 866-217-0063 — we can confirm compatibility with your specific machine models and suggest any other cables needed for complete fleet coverage.

Call 866-217-0063 for quick answers and help!