Jaltest 26.1 Update: New Features, Coverage & Full Breakdown (2026)

TL;DR: Quick Summary

Jaltest 26.1 released on March 12, 2026. Here's what you need to know:

• New vehicle models added for BYD, DAF, HINO, ISUZU, IVECO, Mercedes-Benz, SCANIA, and UD Trucks

• Jaltest GRP Web was introduced: A brand new fully online workshop management platform

• DoIP protocol support for the new Mercedes-Benz Actros and Arocs

• Electric and hybrid vehicle coverage expanded across CV, AGV, OHW, MHE, and Marine

• New wiring diagrams and ADAS (driver assistance) system updates

• Jaltest Link V9 driver updates for newer vehicle communication systems

• Next update (26.2) expected around mid-2026 (Late May-Early July 2026)

• Having trouble with the update? WholeFleet Diagnostics is here to help.

Jaltest 26.1 Update Highlights

Jaltest released version 26.1 on March 12, 2026. This is the first of three software updates scheduled for 2026. 

If you don’t know already, Jaltest (made by Cojali) updates its software three times a year (around every four months). Each update adds new vehicle coverage, fixes bugs, and brings better tools to help technicians work faster.

Version 26.1 brings important improvements across all five Jaltest modules: CV (Commercial Vehicles), AGV (Agricultural Vehicles), OHW (Off-Highway), MHE (Material Handling Equipment), and Marine. It also introduces a major new platform, Jaltest GRP Web, which lets shops manage their workshop from any browser (no installation needed).

Category	What's New
Release Date	March 12, 2026
Version	26.1 (first of three 2026 updates)
Modules Updated	CV, AGV, OHW, MHE, Marine
New Brands (CV)	BYD, DAF, HINO, ISUZU, IVECO, Mercedes-Benz, SCANIA, UD Trucks
New Models (CV)	IVECO S-Way, IVECO T-Way, IVECO X-Way NP, Mercedes-Benz Actros 5, Scania New P/G/R/S Series SUPER
Platform Update	Jaltest GRP Web — fully online workshop management (no install required)
Hardware Update	Jaltest Link V9 driver updates for new vehicle architectures
EV Coverage	Electric/hybrid vehicle systems added across all modules
Next Update	Jaltest 26.2 (expected mid-2026)

Jaltest 26.1 Update: What's New? (2026 Deep Dive)

Platform-Wide Improvements

These changes apply to all Jaltest modules, regardless of which one you use:

• Jaltest GRP Web: A brand-new online workshop management platform. You can now access all your shop data from any web browser, anywhere. No software installation is required. It includes all the standard GRP features, plus improved accessibility, a smarter setup assistant, and flexible settings to fit your shop's needs.

• Jaltest Link V9 driver updates: The hardware interface has been updated to support newer vehicle communication systems and architectures.

• Jaltest Central Services: Expanded and improved support for remote diagnostic assistance.

Jaltest CV 26.1 (Commercial Vehicles)

The 26.1 update adds significant coverage for newer truck models and expands into electric and hybrid powertrains.

New and updated brands include:

• BYD: New models added

• DAF: New models added

• HINO: New models added

• ISUZU: New models added

• IVECO: New models added, including the S-Way, T-Way, and X-Way NP (2024 model year)

• MERCEDES-BENZ: New models added, including the Actros 5 (2024 model year); DoIP protocol systems developed for the new Actros and Arocs

• SCANIA: New models added, including the new P/G/R/S Series SUPER (2024 model year); new Scania models require the additional JDC 213E1 cable

• UD TRUCKS: New models added

System updates in Jaltest CV 26.1:

• New wiring diagrams for engine control systems

• Radar and camera calibration system updates

• Driver assistance (ADAS) system updates

• Steering control system improvements

• Electric inverter system support

• Safety and suspension system updates

• Electric/hybrid vehicle systems: AVAS sound generator and EVAC compressed air management

Important Note for CV Users: If you plan to diagnose the new Scania models or the new Mercedes-Benz Actros/Arocs, you will need the additional JDC 213E1 cable for full functionality. Make sure you have this cable before attempting diagnosis on these vehicles. 

If you don’t have this cable — you can check what we have in stock here.

Jaltest AGV 26.1 (Agricultural Vehicles)

Jaltest AGV is built for tractors, harvesters, and other farm equipment. The 26.1 update continues to grow coverage across leading agricultural brands and adds deeper system-level diagnostics.

Key improvements in Jaltest AGV 26.1 include:

• Expanded coverage for tractors, harvesters, and self-propelled agricultural machinery

• Updated ECU system support for top agricultural brands

• Improved hydraulic calibration and system diagnostics

• Electric and hybrid agricultural vehicle support added

• Updated wiring diagrams and technical information

• New software references to support the latest model years

If you service farming equipment in Canada, this update ensures you're covered for the newest machines coming into the market. Brands like John Deere, CLAAS, New Holland, Fendt, Massey Ferguson, Kubota, Case IH, and Deutz-Fahr continue to receive expanded support with each Jaltest update.

Jaltest OHW 26.1 (Off-Highway Equipment)

Jaltest OHW handles construction equipment, excavators, loaders, cranes, street sweepers, stationary engines, and more. It's popular with construction companies and equipment dealers across Canada.

Version 26.1 improvements for OHW include:

• New models and systems added for top OHW brands including CAT, John Deere, Volvo CE, Komatsu, Bobcat, Doosan, Liebherr, and more

• Improved hydraulic system diagnostics

• Aftertreatment (DEF/DPF) system updates for newer Stage V / Tier 4 Final engines

• Electrical system and wiring diagram updates

• New compact equipment coverage added

• Electric and hybrid powertrain support expanded

• Updated inducement reset and DPF regeneration functions

Jaltest MHE 26.1 (Material Handling Equipment)

Jaltest MHE covers forklifts, scissor lifts, boom lifts, telescopic handlers, harbour cranes, and more. It supports diesel, LPG, gas, and electric-powered equipment.

Updates in version 26.1 for MHE include:

• New models added for leading MHE brands such as Hyster/Yale, CAT, Linde, Toyota, Crown, Genie, Jungheinrich, and others

• Expanded electric forklift and electric warehouse equipment coverage

• Improved calibration functions for hydraulic and lifting systems

• New parameter configuration capabilities for ECU-level control systems

• Updated wiring diagrams and technical information

• Improved aftertreatment reset and injector calibration functions for diesel units

Jaltest Marine 26.1 (Marine Vessels)

Jaltest Marine supports inboard engines, outboard engines, jet skis, and stationary marine engines. It's widely used by marine repair shops and fleet operators who service vessels.

What's new in Jaltest Marine 26.1:

• New models and engine systems added for leading marine brands

• Expanded inboard engine coverage (MAN Marine, Volvo Penta, MTU, CAT)

• Updated outboard engine support

• New software references for newer engine control modules (ECMs)

• Improved wiring diagrams and system documentation

• Updated fault code libraries for common marine engine systems

Jaltest 26.1 Overview

Module	Equipment Type	Notable Brand Additions (26.1)	Key System Updates
CV	Trucks, buses, trailers, vans	BYD, DAF, HINO, ISUZU, IVECO, Mercedes-Benz, SCANIA, UD Trucks	DoIP protocol, ADAS, AVAS/EVAC EV systems
AGV	Tractors, harvesters	John Deere, CLAAS, New Holland, Fendt, Massey Ferguson, Kubota	Hydraulic calibration, EV/hybrid support
OHW	Excavators, cranes, loaders, sweepers	CAT, Volvo CE, John Deere, Komatsu, Bobcat, Liebherr	Aftertreatment, DPF regen, Stage V engines
MHE	Forklifts, boom lifts, scissor lifts	Hyster/Yale, Linde, Toyota, Crown, Genie, Jungheinrich	Electric MHE coverage, hydraulic calibration
Marine	Inboard/outboard engines, jet skis	MAN Marine, Volvo Penta, MTU, CAT Marine	ECM updates, wiring diagrams, fault codes

When Will Jaltest 26.2 Come Out?

Jaltest releases three software updates per year — roughly every four months. Based on this schedule, here's what to expect:

• Jaltest Version 26.1: March 12, 2026 (AVAILABLE NOW)

• Jaltest Version 26.2: June-July 2026 (Next scheduled update)

• Jaltest Version 26.3: October–November 2026 (Final 2026 update)

Note: WholeFleet customers with an active license get all three annual Jaltest updates automatically. Your software will be ready the next time you launch it. If you're not sure whether you're on the latest version, our support team can check for you.

Having Trouble with the 26.1 Jaltest Update? 

WholeFleet Diagnostics is here to help. Contact us at support@wholefleet.ca or call 1-866-953-5338 (Option 1 for Jaltest Software Support). We're located in Waterloo, Ontario but are ready to assist remotely. 

Whether you're dealing with an installation issue, need a new cable for the updated Mercedes or Scania coverage, or just want to make sure you're getting the most out of Jaltest 26.1 — WholeFleet has you covered.

Common Issues After Updating to 26.1

1. Update won't start or freezes: Make sure your laptop is fully charged or plugged in. Close other programs. Restart the laptop and try again.

2. Not enough storage space: Jaltest updates can be large. Free up space on your laptop or check with WholeFleet about storage requirements.

3. Connection error during download: Switch to a wired internet connection if possible. Temporarily disable your antivirus/firewall, then restart your router and try again.

4. Software won't launch after update: Restart your computer. If the issue continues, reinstall the Jaltest Download Manager.

5. New Scania or Mercedes not connecting: You may need the new JDC 213E1 cable. Contact WholeFleet to order the right cable for your setup.

6. License not recognized: Make sure your license is active. Contact WholeFleet support — they can verify your license status quickly.