Case IH A-G-145 - Display – Navigation Controller (NAV II / NAV III): Too Fast to Engage

The operator is attempting to engage the automated steering system while the vehicle is traveling at a speed that is greater than the maximum allowed threshold for engagement.

• MAGNUM AFS Connect
• STEIGER AFS Connect
• Magnum series tractors
• Steiger series tractors
• Puma series tractors
• Optum series tractors
• Maxxum series tractors
• Axial-Flow series combines
• Patriot sprayers
• Defensor sprayers

1. 1

   Verify the actual ground speed of the vehicle when the operator is pressing the AccuGuide engage button

2. 2

   Observe the ground speed displayed on the AFS monitor while driving at a known slow speed to check speed sensor accuracy

3. 3

   Ensure the correct machine profile and steering aggressiveness settings are selected in the AFS display

1. 1

   Decrease Speed

   Instruct the operator to slow the vehicle down to a standard field working speed (typically below 10-15 mph, depending on the specific implement and tractor profile).

2. 2

   Re-Engage

   Once the vehicle is traveling at an acceptable speed, press the AccuGuide engage button on the MultiController or armrest. The system should acquire the line and take over steering.

3. 3

   Address False Readings

   If the operator is driving slowly but the code still triggers, recalibrate the ground speed radar or wheel speed sensor via the AFS display calibration menus.

4. 4

   Software Update

   If the system refuses to engage at any speed and speed sensors read correctly, update or roll back the firmware on the Pro 700 display and NAV controller to resolve software handshake glitches.