Case IH A-GNSS-111 - Display – Display: Display: "Move to Open Sky"

The GNSS reception is poor, and the system cannot determine a position or heading because the receiver's view of the satellites is obstructed by physical barriers.

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

1. 1

   Move the vehicle to an open area with a clear view of the sky, away from buildings, sheds, or dense tree lines.

2. 2

   Leave the machine stationary in the open for 2–3 minutes to allow the GNSS system to initialize and acquire satellites.

3. 3

   Ensure the correct correction source is selected in the display (e.g., NTRIP / Internet RTK vs. OEM corrections like RTX) and verify any required RTK unlock/license is active.

4. 4

   Visually inspect the roof-mounted GNSS receiver/antenna, connectors, and cabling.

5. 5

   Look for water ingress in the connectors or physical damage to the coaxial cables.

1. 1

   Isolate the Hardware

   If software settings are correct and the machine is in an open area but still fails to get a fix, disconnect the GNSS receiver cabling.

2. 2

   Test with Known-Good Components

   Swap in a known-good GNSS antenna and/or coaxial extension cable to determine if the issue lies with the wiring or the receiver itself.

3. 3

   Replace Faulty Wiring

   If the test cable restores the signal, replace the damaged coaxial harness routed to the cab roof.

4. 4

   Replace the Receiver

   If the cabling is intact and a known-good receiver works, the machine's GNSS receiver has failed internally and must be replaced.

5. 5

   Recalibrate

   After replacing the receiver, you may need to drive the tractor to determine heading and allow the system to re-initialize its position.