Case IH 630-25 - ACM – Armrest Controller Module (ACM): Armrest controller application software disagreement

Indicates a software version mismatch, corruption, or configuration error within the armrest's operating software.

• MAGNUM AFS Connect
• Magnum series (e.g., Magnum 235 - 340 Series 4)
• Steiger series

1. 1

   Inspect the armrest controller connectors (such as connector C054) and the Tractor Control Unit (TCU) connectors.

2. 2

   Ensure that all connectors are fully seated, not damaged, and that the pins are in the correct position with a tight fit.

3. 3

   Check that related switches (such as the PTO switch) are properly connected into their respective ports (e.g., the H10 connector) on the armrest controller.

1. 1

   Update ACM software

   Connect the machine to the Case IH Electronic Service Tool (EST) to re-flash or update the ACM software to match the rest of the tractor's CAN bus modules.