Case IH 2858-02 - IMM – IMM: Invalid machine configuration

A CAN Bus message from a control unit is either missing or invalid, indicating a communication failure where the machine's network cannot verify the hardware or software configuration of a specific module.

• MAGNUM AFS Connect

1. 1

   Check for missing CAN Bus messages from the control unit (e.g., Armrest Control Unit or Cornerpost Control Unit)

2. 2

   Verify the wiring harness and CAN Bus connections to the IMM or ACML module to ensure messages are being transmitted and received correctly

3. 3

   Check for any recent software updates or module replacements that may require a configuration relearn or calibration

1. 1

   Turn the Key Switch to the OFF position, wait for 30 seconds, and restart

   This checks if the controller can exit its boot block program.

2. 2

   Replace the control unit

   Perform this step if the EEPROM fails the test on power-up or the condition persists.