Why Jaltest is the Best Heavy Truck Scanner Software

When it comes to heavy truck scanner software, every shop wants the same thing: accurate diagnostics, fast troubleshooting, and coverage that actually matches the trucks coming through their bays. That’s where Jaltest stands out. 

As a former tech, I have a lot of experience with heavy truck scanner software, and Jaltest continues to be my favourite. For mixed fleets, independent repair shops, and mobile techs across Canada, there is simply no better option than Jaltest. 

Keep reading to understand why I and so many others believe Jaltest is the best heavy truck scanner software on the market today. 

Reason 1: Multi-Brand Vehicle Coverage

The multi-brand coverage Jaltest offers is one of the biggest reasons I recommend it to techs. Most shops service more than just one brand, but juggling multiple OEM dealer-level licenses can be tricky. Jaltest can simplify your diagnostics significantly as an all-in-one tool. Additionally, the cost of Jaltest is often much lower than the cost of owning multiple OEM dealer-level scanners and tools — all of which have their own licensing, renewal fees, and built-in capabilities — it’s hard to manage.  

Jaltest is not the only third-party scanner to offer multi-brand coverage, but it provides the most extensive coverage by far. 

Here are just a small fraction of the brands that Jaltest supports:

1. Freightliner

2. Western Star

3. Kenworth

4. Peterbilt

5. Volvo

6. Mack

7. International

8. Hino

9. Detroit

10. Cummins

11. PACCAR

12. CAT

13. Mercedes

14. Navistar

15. Allison

16. Eaton

17. ZF transmissions

18. ABS systems like Bendix, WABCO, Meritor

For a full list of what Jaltest covers — click here!

Reason 2: Advanced Diagnostic Capabilities

It’s important to have a heavy truck scanner to scan for fault codes, but Jaltest is more than that. Jaltest can find fault codes while also giving technicians the troubleshooting information needed to resolve the issue. It’s complete end-to-end diagnostic support not offered by standard heavy truck scanner software.

Let’s cover some of the highlights of Jaltest’s advanced diagnostic capabilities: 

• Bi-directional commands: DPF regenerations, injector cutouts, cylinder balance, SCR tests, VGT actuator calibrations.

• Parameter changes: Road speed limits, PTO settings, idle shutdown, ECM configurations.

• Calibrations & resets: NOx sensor resets, aftertreatment resets, clutch calibrations, steering angle resets.

• System monitoring: Live data, graphing, freeze frames.

Reason 3: OEM Repair Information

Jaltest includes built-in repair info that normally requires OEM subscriptions:

• Troubleshooting guides

• Wiring diagrams

• Component locations

• Step-by-step test procedures

• Technical service data

• Torque specs

This is a major advantage because many OEM platforms (Detroit DiagnosticLink, Cummins INSITE, Volvo PTT) require multiple logins and annual fees. They also only work for the specific brand and won’t support competitors (Cummins INSITE won’t work for Volvo trucks and vice versa).

With Jaltest, the diagnostic and repair information is in one place, eliminating time wasted switching between platforms.

Extra: WholeFleet Extended Support

Most diagnostic software delivers the tool and leaves the rest up to you. WholeFleet takes the opposite approach with its extended support package, available with our Jaltest packages. Our extended support package includes:

• Direct 1-on-1 assistance from a fellow tech

• Help with diagnostic workflow, real-world troubleshooting, and using the Jaltest software

• Weekend/Afterhours support available

• Comes with access to online, self-paced technician training courses

For new techs or busy shops, this makes a noticeable difference. You’re not left guessing—you have expert backup from technicians who use Jaltest daily.

Purchase a Jaltest kit with WholeFleet and benefit from reliable technical support built for your needs.