Industry-leading Diagnostics for CLAAS Vehicles

Jaltest AGV provides a powerful and professional diagnostic solution for Claas agricultural machinery, helping workshops and service engineers keep equipment operating reliably and efficiently. Designed specifically for modern agricultural vehicles, Jaltest enables technicians to quickly identify faults, carry out maintenance tasks and complete repairs with confidence.
Supporting a wide range of Claas tractors, harvesters and implements, Jaltest AGV delivers comprehensive multi-system diagnostics through a single, intuitive platform. Technicians can access fault code information, analyse live system data and follow guided troubleshooting procedures that simplify complex repair processes. Integrated technical information, including wiring diagrams and component data, allows users to move from diagnosis to repair without switching between multiple systems or manufacturer tools.
Jaltest AGV offers advanced functionality comparable to dealer-level diagnostics while remaining flexible enough to support mixed agricultural fleets. The system allows technicians to perform system checks, component actuations, parameter adjustments, maintenance resets, calibrations and ECU configuration, helping workshops reduce diagnostic time and improve overall efficiency.
Developed for real workshop and field environments, Jaltest combines durable hardware with user-friendly software designed to support daily servicing and advanced fault finding. Regular software updates continuously expand Claas coverage while adding new features to support evolving agricultural technology.
By improving diagnostic accuracy and reducing machine downtime, Jaltest AGV helps agricultural professionals maintain productivity and keep critical Claas equipment performing at its best.
Please call us today on +44 1283 24981 to learn more about our Claas diagnostics capabilities.
Troubleshooting guide by error code
System Technical Data
Diagrams
Vehicle Technical Data
Vehicle maintenance data
Troubleshooting guides by symptoms
Releases and Procedures
Manual Diagnosis




Visual and intuitive
Quick installation and use
Customisable
All in one screen
Elegant design with brighter colours

Obtain all the John Deere diagnostics information through this module and speed up the repair by accessing detailed technical information, images, graphs, and diagrams for each diagnosed vehicle. This information will help you identify the error code, part, location, etc.
Jaltest AGV offers advanced diagnostics possibilities for workshops under the Expert Mode. When this mode is active, you will be able to carry out actions that require the modification of parameters in different ECUs, such as sensor and actuator calibration, configuration of operating parameters or DPF replacement and regeneration, among others.


Through the specialised technical assistance module, you will be able to submit queries to our technical support centre from the Jaltest Diagnostics software itself, anytime and anywhere.
Receive additional help for the replacement and reprogramming of Cojali brand components in three easy steps.
Access our optimised workshop management solution. Share client information, vehicle data and AGV diagnostics reports, work order management, repair times and much more.


All products of the Jaltest family are designed to meet the strictest workshop technicians' demands and needs regarding roadside assistance. They are also designed and prepared to face extreme working and weather conditions.


- Maximum connection speed
- USB and subd26 connector protection (poka yoke model)
- Robust electronics and enhanced communication capabilities
- Impact absorption
- Compact and light

- Windows 10 Pro
- Exclusive design that improves resistance
- Robust electronics and enhanced communication capabilities
- Mil-std 810g category certification
- Liquid-resistant keyboard/touchpad

- Rugged military spec
- Solid-state drive (SSD)
- Windows 11 operating system
- Wi-Fi 6, Bluetooth 5.1
- 16 hours battery life
- Carry handle
- Precision stylus

- Testpad Extreme® Pro docking station
- Printer
- Keyboard
- Mouse
- Cable management
- Lockable kit cupboard
- Locking castors
- Integral diagnostic cables rack

- Compartments designed to storage cables, link and PC
- Adjustable bands to ensure the contents during transport
- Compatible with jaltest and other equipments
- Optimal size to combine with our diagnostics trolley

- Maximum connection speed
- Manufactured by Cojali
- Durable and long-lasting
- Tailored to your specific fleet