Your Diagnostic Tools.
Any Truck.
Anywhere.
Connect your existing J1939 diagnostic software to any truck in your fleet—no travel required. ECU-Link creates a secure VPN tunnel from your shop to the truck's CAN bus.
Everything you need for modern fleet management
From real-time diagnostics to predictive maintenance, ecuLink provides the complete solution for modern fleet operators who demand reliability and efficiency.
Encrypted VPN Security
Military-grade WireGuard VPN encryption with a dedicated tunnel for every truck. Keep dealer tools off the public internet while technicians work remotely.
Full J1939 Protocol Support
Designed for modern Class 8 trucks with full J1939 pass-through support. If the OEM software can talk J1939, ECU-Link can carry the session.
Works With Your Existing Tools
Bring the OEM applications you already trust—JPRO, Cummins INSITE, Detroit DDDL and more. No new software to learn, just a new way to connect.
Real-Time, Low Latency
Sub-second round-trips optimized for bidirectional CAN traffic, not generic screen sharing. Feels like the truck is in your bay, even when it isn’t.
Low Power Design
Engineered to stay online without draining batteries. ECU-Link sips power so you can leave it plugged in and always ready for the next session.
Built-in Cellular + GPS
Integrated LTE modem and GPS mean no separate hotspot or in-cab router to manage. Just power the device and it phones home automatically.
How ecuLink works
Under the hood, ecuLink creates a secure remote connection to your truck’s ECUs in four steps: install the device, establish a cellular VPN tunnel, open a remote diagnostic session, and perform fixes.
Install – plug into the truck
Connect the ecuLink gateway to the truck’s 9‑pin diagnostic port. The device powers from the vehicle and links directly to the CAN/ECU network.
Connect – secure cellular tunnel
The device auto-connects to the cellular network and establishes an encrypted VPN tunnel back to the ecuLink cloud, without using the driver’s phone or Wi‑Fi.
Diagnose – remote ECU access
A technician launches the ecuLink diagnostic software. All diagnostic traffic is routed through the VPN tunnel to the truck, providing live access to ECUs as if connected on-site.
Fix – perform repairs remotely
Use full remote capabilities to read and clear fault codes, run regens, and adjust supported parameters so issues can be fixed faster with fewer shop visits.
Ready to transform your fleet management?
Join fleet managers who are upgrading to ecuLink's remote diagnostics platform.
Trusted by leading diagnostic software
ecuLink is compatible with the most widely used heavy-duty diagnostic tools in the industry, so your technicians can keep using the software they already know.
Cummins INSITE
Detroit DDDL
Noregon JPRO
Volvo PTT
Paccar ESA
CAT ET
Jaltest
Cummins INSITE
Detroit DDDL
Noregon JPRO
Volvo PTT
Paccar ESA
CAT ET
Jaltest
Advanced Fleet Monitoring
Track your entire fleet with precision GPS monitoring. Get real-time location updates, route optimization, and vehicle telemetry in one powerful platform.
From breakdown to breakthrough
See how fleet managers and owner-operators are transforming their operations with ECU Link's remote diagnostics platform.
"ecuLink saved me thousands of dollars in diagnostics & downtime by allowing me to quickly identify problems remotely. When I got stuck, their support team was there to assist me. You have a customer here for life!"
Ready to Transform Your
Fleet Management?
Join fleet managers who are upgrading to ecuLink's remote diagnostics platform. Start saving time and money today.