For truck mechanics and fleet operators, accurate diagnostics are the backbone of efficient service.
Developed by Cojali S.L., a Spanish company with over 25 years of experience in vehicle diagnostics and component manufacturing, the Jaltest CV is a diagnostic tool that stands out as a comprehensive, multi-brand solution designed specifically for commercial vehicles—including trucks, trailers, buses, and light-duty pickups.
Cojali has built a global reputation for innovation in multi-brand diagnostics, with a strong presence in North America through Cojali USA. Its commitment to continuous improvement and technical support has made Jaltest a trusted name among independent mechanics, fleet managers, and OEM service networks.
Modern trucks are packed with electronic control units (ECUs) and complex systems. Without a capable diagnostic tool, mechanics risk misdiagnosing issues, replacing parts unnecessarily, or missing critical faults. Tools like Jaltest CV empower technicians to work smarter, reduce downtime, and improve service quality—making them indispensable in today’s trucking world.
Jaltest CV is a diagnostic kit that includes rugged hardware, intuitive software, and a wide array of vehicle connectors. It supports advanced functions such as:
- DPF regeneration
- Injector coding
- Cylinder cut-out tests
- Sensor and actuator calibration
- Parameter adjustments across ECUs
Cojali USA
Jaltest CV diagnostic test for trucks
The software provides real-time data monitoring, automatic fault code detection, and step-by-step troubleshooting guides. It also includes Jaltest INFO, a technical database with wiring diagrams, component locations, and repair instructions—essential for tackling complex issues quickly and accurately.
Using the Jaltest Link V9 interface, technicians connect the tool to the vehicle’s diagnostic port. The software then scans all onboard systems, identifies fault codes, and provides actionable insights. Mechanics can perform calibrations, reset systems, and even manage work orders through the Jaltest GRP (Garage Resource Planning) module.
The system is compatible with major North American brands like Freightliner, Peterbilt, Kenworth, Mack, and PACCAR, making it ideal for mixed fleets.
Jaltest CV combines depth of diagnostics with ease of use. Its multi-brand coverage eliminates the need for multiple OEM tools, saving time and money. Frequent software updates ensure compatibility with the latest vehicle models and systems. Plus, its rugged design makes it suitable for both shop and mobile use.
For more information, visit www.jaltest.com/en/diagnostics/jaltest-cv-commercial-vehicle.