Jaltest Bus Diagnostic Tool

The Jaltest Bus module is a leading multi-brand and multi-system diagnostic platform, developed for the complex electronics of buses and coaches. The system supports OE-level diagnostics for all critical vehicle systems, from engine management to comfort functions such as air conditioning, doors, and passenger systems. The platform consists of the robust, wireless Jaltest Link VCI (Vehicle Communication Interface) and the comprehensive Jaltest SOFT diagnostic software.

What sets Jaltest apart is the integration of diagnosis, technical information, and repair guidance within a single user-friendly interface. The technician is guided step by step throughout the entire diagnostic process – from analyzing a door system malfunction to performing a calibration of the air suspension – making Jaltest Bus an essential solution for workshops in passenger transport and public transportation.

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Diagnostic functions:

The Jaltest Bus-module provides comprehensive, brand-independent OE-level diagnostics for all electronic systems in buses and coaches. This enables technicians to quickly and accurately locate and resolve faults.

• Reading and clearing fault codes: Detects active, inactive, and permanent fault codes in all vehicle systems, including engine, transmission, air conditioning, brakes, doors, and comfort modules. After repair, fault codes can be cleared immediately.
• Live data monitoring: Real-time display of sensor values and system parameters, such as door pressure, kneeling function status, temperature in climate zones, speed, battery voltage and more. The user can create a list of values to monitor, displayed numerically or graphically.
• Actuator testing: Enables direct control of components such as door systems, air conditioning fans, heating valves, air suspension valves and lighting modules, to check the correct operation of subsystems.
• System and ECU information: Provides access to all important identification data of control modules, including part number, software version, serial number, and installation data.
  

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Maintenance, service & calibration functions:

The Jaltest Bus module offers an exceptionally broad and in-depth package of maintenance, service, and calibration procedures essential for the professional maintenance of buses and coaches. These functions approach or exceed the level of original dealer diagnostic systems and enable technicians to perform complex repairs independently and correctly.

Engine and exhaust gas aftertreatment:

• DPF service: Full support for the diesel particulate filter (DPF), including forced regeneration (static or dynamic), reset of soot and ash values, and checking back pressure sensors.
• AdBlue (SCR) system service: Maintenance and diagnosis of the SCR system, including system reset, leak test, checking pump pressure, and individual control of pump, heating, and injector.
• Injector coding: Writes IMA, C2i, or C3i codes of injectors into the ECU for accurate fuel injection and combustion.
• Engine system checks: Guided system tests such as cylinder deactivation, compression test, and turbo control (VGT).
• EGR learning: Calibration of the exhaust gas recirculation valve (EGR) after replacement or cleaning.
• Oil service reset: Resetting the maintenance indicator on the dashboard after service.

Air suspension and chassis:

• Air suspension (ECAS/ELC) calibration: Setting and calibrating ride height, levels, and height sensors of the electronic air suspension system.
• Kneeling function calibration: Calibration of the kneeling function for optimal entry height and passenger comfort.
• Steering angle sensor (SAS) calibration: Learning the steering angle sensor, essential after alignment or work on the steering gear.

Transmission and driveline:

• Transmission calibration: Calibration of automatic transmissions such as ZF AS Tronic and Voith Diwa, including learning of actuators.
• Clutch learning: Determines engagement point and performs wear check on manual or robotic clutches.
• Retarder calibration: Testing and adjusting the hydraulic or electromagnetic retarder.

Brake and door systems:

• Electronic parking brake (EPB): Full control and maintenance function for the electronic parking brake.
• ABS/EBS bleeding: Start the ABS or EBS pump to bleed the system after component replacement.
• Door system calibration: Learning and adjusting electronically or pneumatically controlled door systems, including:
  • Opening/closing speeds
  • Obstacle detection sensitivity
  • Closing force
• Hill holder configuration: Setting and testing of the hill start assist.

General system functions and resets:

• Battery registration (BMS): Registration of a new battery in the Battery Management System.
• Tachograph information: Reading parameters and status of the digital tachograph.
• Air conditioning service: Testing and resetting of the HVAC system, including climate zones, temperature control and fans.

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Advanced diagnostics & technical information:

The true power of the Jaltest Bus module lies in the integration of specialized technical information within the diagnostic software. This makes the system a full-fledged technical workshop partner for the bus and coach workshop.

• Interactive electrical, pneumatic & hydraulic diagrams: Fully dynamic diagrams in which components such as door sensors, valve blocks, fuses, ground connections, control units and wiring are clickable. The user gets direct access to:
  • Function and operation of the component
  • Test procedures and nominal measurement values
  • Component photos and location descriptions
  • Pin-outs of connectors
• Vehicle technical data: Jaltest includes a comprehensive digital knowledge base with vehicle-specific information per bus or coach, including:
  • Tightening torques for engine, chassis and body components
  • Adjustment data for systems such as doors, belt tension and clutches
  • Fluid specifications for engine oil, coolant, transmission oil, power steering and brake systems
  • Component data with technical specifications of, among others, pressure sensors, temperature sensors and ECUs
• Repair guides per fault code: For each detected fault code, Jaltest offers a step-by-step repair manual, including wiring inspection, line checks, component tests and targeted solutions per make and model.
• Symptom-based diagnosis: In the absence of fault codes, the diagnostic process can be started based on complaints such as “kneeling function not working”, “door does not close” or “engine does not start”. The software guides the technician through a guided test procedure with logical sequence.
• Technical bulletins & procedures: Direct access to technical bulletins issued by Jaltest, focused on common faults, recurring complaints, and brand-specific repair recommendations.
• Maintenance data: Automatically generated, manufacturer-specific maintenance schedules based on kilometers or operating hours. The software specifies for each vehicle type which tasks need to be performed and when.
• Service procedures: Clear and fully developed work instructions for performing regular and periodic maintenance tasks, including required parts, torque settings, quantities, and specifications.

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Specialized software modules:

The Jaltest Bus module is part of a modular platform and can be expanded with specialized software modules that significantly enhance the functionality, workshop organization, and testing capabilities within the passenger transport sector. These extensions are fully integrated into the Jaltest diagnostic environment.

• Jaltest GRP (Garage Resource Planning): An integrated workshop management and CRM system that allows users to centrally manage customers, vehicles, work orders, maintenance scheduling, and invoicing. Diagnostic reports are automatically linked to work orders, creating a fully digital maintenance history per bus.

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Supported vehicle brands:

• Buses: Agrale, Alexander Dennis, Ashok Leyland, Autosan, BCI, BharatBenz, BLK, Blue Bird, BMC, BYD, Credo, Daewoo, Dina, Eicher, Force Motors, Ford Custom Chassis, Freightliner Custom Chassis, Gillig, Golden Dragon, Higer, Hino, Hyundai, IC (International), Irizar, Isuzu, Iveco/Irisbus, Karsan, Kia, King Long, Mahindra, MAN, MAZ, MCI, MCV, Menarinibus, Mercedes-Benz, Mitsubishi Fuso, NABI, NefAZ, Neoplan, New Flyer, Nissan, Nova Bus, Orion, Otokar, Prevost, Renault, Scania, Setra, SML Isuzu, Solaris, Solbus, SOR, Tata, Temsa, Thomas Built, Toyota, Van Hool, VDL, Viseon Bus, Volkswagen, Volvo, Wrightbus, Yutong, ZhongTong

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Package contents:

• Jaltest Link V9 Interface
• Jaltest 15 Pins DB15 - 16 Pins OBD2 Adapter Plug
• Jaltest 26 Pins DB26 Extension Cable
• Jaltest USB-A - USB-B
• Jaltest Multi-pin Kit
• Jaltest Storage Case (Compact)
• Jaltest Cigarette Lighter Adapter Cable

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License information:

The Jaltest Bus module operates based on a annual software license. This license provides full access to all diagnostic, maintenance, and calibration functions for buses and coaches of all major brands. The license is designed for professional use within the passenger transport sector and includes:

• Three major software updates per year, with improved brand and model coverage, new diagnostic features, and up-to-date technical documentation.
• Access to technical support, including assistance with activations, fault code analysis, update procedures, and interpretation of vehicle parameters.

Modular structure:

The Jaltest software is modularly expandable. In addition to buses and coaches (Bus), additional licenses can be activated for other vehicle categories, such as:

• Commercial vehicles (CV)
• Agricultural vehicles (AGV)
• Off-Highway machines (OHW)
• Material Handling Equipment (MHE)
• Maritime applications (Marine)
  

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Technical specifications