Case IH 704-02 - ACM – ACM: Configurable switch 4 circuit fault

Indicates an electrical issue (such as an open circuit, short to ground, or short to power) in the wiring or the switch itself.

• MAGNUM AFS Connect
• Case IH Magnum Series (180, 190, 200, 210, 220, 225, 235, 240, and up to 340)
• Case IH Steiger Series (ranging from 350 to 600 horsepower)

1. 1

   Check the physical condition of Configurable switch 4 on the armrest for mechanical binding or damage.

2. 2

   Verify the wiring harness connecting the switch to the ACM for continuity, shorts to ground, or shorts to power.

3. 3

   Check for any other active ACM communication codes (such as code 1012: 'No communication with the ACM') which might indicate a broader module failure rather than an isolated switch issue.