Yanmar diagnostics cable

Jaltest JDC538A - Yanmar Diagnostics Cable

The Jaltest JDC538A is a genuine Cojali 6-pin diagnostic cable for Yanmar engines and equipment. Yanmar is a Japanese manufacturer of diesel engines with an enormous installed base in both agricultural equipment and marine applications — compact tractors, mini excavators, skid steers, utility vehicles, generator sets, and a broad range of marine inboard and auxiliary engines all run Yanmar power. The JDC538A gives Jaltest users direct diagnostic access to Yanmar equipment and engines through a 6-pin connection to the Yanmar diagnostic port.

This cable is versatile: Cojali includes it in two separate cable kit packages — the Jaltest OHW USA Cable Kit (70002031) for construction equipment, and the Jaltest Marine Stationary Engines Cable Kit (70002006) — confirming its relevance across multiple Jaltest coverage modules.

What This Cable Does

The JDC538A connects from the Jaltest Link interface to the 6-pin diagnostic port on Yanmar engines and equipment. With this cable connected and the appropriate Jaltest license active, the software communicates with the Yanmar ECU for fault diagnostics, live data, and calibration functions.

• Compatible brand: Yanmar construction equipment and engines; Yanmar marine engines
• Typical applications: Yanmar compact tractors (YT series), Yanmar mini-excavators (VIO, SV series), Yanmar engines in skid steers and telehandlers, Yanmar marine inboard diesel engines, Yanmar stationary generator sets
• Connector type: 6-pin Yanmar diagnostic connector
• Compatible Jaltest modules: Jaltest OHW (Off-Highway) and Jaltest Marine (Stationary Engines)
• Works with Jaltest Link V8.1 and V9
• Cable length: 11 inches
• Genuine Cojali product
• Included in: Jaltest OHW USA Cable Kit (70002031), Jaltest Marine Stationary Engines Cable Kit (70002006)
• Listed in Jaltest 2025 Pricelist: Part number JDC538A, MSRP 40.00

Cross-Market Relevance: OHW and Marine

Yanmar engines appear in a uniquely broad range of equipment categories. On the construction/OHW side, Yanmar builds compact excavators and supplies engines to several other equipment manufacturers. On the marine side, Yanmar is one of the most popular inboard diesel brands in North America — found in sailboats, cruisers, fishing vessels, and commercial workboats across every size class from 15 to 350 horsepower. The JDC538A covers both worlds, making it a two-for-one cable for shops that run both the Jaltest OHW and Jaltest Marine licenses.

Diagnostic Capabilities

With the JDC538A connected and the appropriate Jaltest license active:

• Fault code reading and clearing on Yanmar engine ECUs
• Live engine parameter data — rpm, temperatures, fuel system, load monitoring
• Calibration and adjustment functions supported by Jaltest for Yanmar
• Aftertreatment system access on emissions-equipped machines
• Marine-specific engine monitoring on Yanmar marine diesel installations

Technical Details

• SKU / Part Number: JDC538A
• Connector type: 6-pin Yanmar diagnostic
• Cable length: 11 inches
• Manufacturer: Cojali (Jaltest)
• Compatible Software: Jaltest OHW, Jaltest Marine Stationary Engines (active license required)
• Compatible Link Versions: V8.1 / V9
• Included in cable kits: 70002031 (OHW USA), 70002006 (Stationary Engines Marine)
• Price (2025 Pricelist): 40.00

Why Buy From OEM Diagnostic Tools?

We have specialized in Jaltest since 2016 and carry the full Cojali cable lineup for both OHW and Marine applications. The JDC538A ships free with full warranty. If you are building out Jaltest coverage for Yanmar equipment or marine engines, call us at 866-217-0063 — we can help you configure the right cable set and licenses for your specific fleet.

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