System fault review
Scan supported controllers and connect the reported codes with the machine’s symptoms.
Construction & off-highway equipment
Less guesswork.
A clearer repair plan.
From an excavator warning to a loader with intermittent power loss, LGDiag helps investigate supported equipment systems at your jobsite or machine location.
Mobile service · By appointment only
Support for your equipment
Diagnostics where the machine is
We provide mobile diagnostics for supported excavators, loaders, skid steers, backhoes and other off-highway equipment. Machine access and available functions vary, so send the make, model, year and serial / PIN plate before arranging a visit.
What a visit may include
A focused path to answers.
Live readings & electrical checks
Use operating data and targeted sensor or wiring checks to investigate the fault.
Supported component functions
Confirm which component tests, calibrations and resets are available for your machine.
Findings you can act on
Discuss the checks performed and the recommended next steps, including any further repair or testing needed.
Available functions depend on the make, model, year, controller and connection. We confirm equipment support, visit cost and travel before scheduling.
Local mobile service
Rio Grande Valley
& South Texas.
Serving Mission, McAllen, Edinburg, Pharr, Weslaco and surrounding communities. Send your location to discuss travel and availability.
A request starts the conversation. Your appointment is confirmed directly with LGDiag after we discuss the visit.
Check coverage & request service ↗Before your visit
Can you diagnose equipment at a construction site?
Yes, by appointment. Send the machine location and access details so we can discuss the visit, working area and travel before scheduling.
Does a diagnostic scan cover every hydraulic problem?
Electronic diagnostics can help investigate supported controls, sensors and related faults. Some issues need additional mechanical or hydraulic testing; we discuss that based on the findings.
What equipment details do you need?
Send the make, model, year, serial / PIN plate, symptoms, exact codes and recent repair history. Coverage depends on the controller and diagnostic connection.