AgJunction OnTrac3 ECU-S1

AgJunction OnTrac3 ECU-S1 – Precision Auto-Steering Control Unit

The AgJunction OnTrac3 ECU-S1 is the core control module behind the OnTrac3 assisted steering system, delivering precise, reliable auto-steering performance for a wide range of agricultural equipment.

Designed for seamless integration with GPS guidance systems, the ECU-S1 processes steering commands, sensor inputs, and vehicle dynamics in real time to maintain accurate, repeatable passes across the field.

Key Features

• Advanced Steering Control: Optimizes steering performance for smooth, accurate line tracking

• Integrated Terrain Compensation: Utilizes multi-axis sensing and internal compass for consistent accuracy across varying terrain

• Real-Time Processing: Rapid response to guidance corrections for improved pass-to-pass consistency

• Wide Compatibility: Works with a variety of vehicles equipped with hydrostatic steering systems

• Compact, Rugged Design: Built for in-cab mounting with durable construction for agricultural environments

• LED Diagnostics: Integrated status indicators for quick system troubleshooting and operation monitoring

Applications

• Row crop farming

• Sprayers and applicators

• Tractors and utility vehicles

• Retrofit precision ag steering systems

Why It Matters

The ECU-S1 is the “brain” of the OnTrac3 system—ensuring accurate steering, reducing operator fatigue, and improving efficiency in field operations. Whether upgrading an existing machine or deploying precision guidance for the first time, it provides dependable, high-performance contr