Where to Find Cable Connections on Off-Highway Equipment (Part 3)

We get tons of calls from people struggling to find where to hook up, since port locations can vary on every make and model. In this blog series, Diesel Laptops breaks down where the cable connections are on some of the most common construction and farming equipment we work on with our Diesel Laptops Diagnostic kits. 

Here are the other blogs in the series:

  • Part 1: Bobcat Skid Steer, Bomag Roller (Deutz Engine), CAT Dozer, CAT Excavator, CAT Grader, CAT Loader, CAT Skid Steer and CAT Backhoe
  • Part 2: JLG Aerial Lift (Duetz Engine) and Telehandler, JCB Excavator and Telehandler, Hamm Roller 

If you’re not sure what cable you need, click here to view our cable guide for each make & model of construction, agricultural and industrial equipment.


Doosan Excavator

Depending on what model you have your hook up is located behind the seat (photo 1), on the engine, it at the back side of the engine (photo 2):

Behind the seat:

Doosan Excavator Cable Connection

Back side of the engine: 

Doosan Excavator Cable connection engine

Kobelco Excavator

Location will vary slightly based on engine type, both are behind the seat. Hino Engines (photo 1) or FPT engines (photo 2)

Kobelco Excavator with Hino Engine: 

Kobelco Excavator Connection - Hino Engine

Kobelco Excavator with FPT Engine:

Kobelco Excavator Connection - FPT Engine

Linkbelt Excavator

Cable connection is behind the seat

Linkbelt Excavator Cable Connection

John Deere Backhoe 

Connections can be found in the console: 

John Deere Backhoe Diagnostic Port

John Deere Excavator 

JD Excavator connections are found in one of the following places: behind the seat (photo 1), by the batteries (photo 2), or at the ECM (photo 3).

Behind the seat: 

John Deere Excavator Connection

By the batteries: 

JD Excavator Hook Up

At the ECM: 

JD Excavator Diagnostics Port

John Deere Skid Steer

Diagnostic port is located by the gauge cluster

John Deere Skid Steer Cable Connection

John Deere Loader

Hook up is found on the console

John Deere Loader Cable Connection

Takeuchi Excavator

Connection is under the seat

Takeuchi Excavator Cable Connection

Heavy Equipment Diagnostic Connection Assistance

Diesel Laptops carries a full range of diagnostic cables, if you don’t see what you’re looking for contact our team.

If you are having trouble connecting your TEXA or Cojali Off-Highway diagnostic kit to your machine reach out to us, one of our trained diesel technicians can help troubleshoot the issue.

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Diesel Marketing - March 22, 2021

Please check our Cable Finder for more port locations. https://www.diesellaptops.com/pages/cable-finder

A search through the Cable Finder found this answer:
“John Deere Bulldozers have the diagnostic port located in the storage compartment under the gauge cluster.”

Wayne J Sharp - March 22, 2021

Can you tell me where the diagnostics port is located on a jogn deere 550 dozer?

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