Case IH 2295-12 - UCM – UCM: Front pilot head #2 - Low supply voltage

Indicates an issue with the Front pilot head #2, specifically a low supply voltage report. The FMI 12 identifier points to a bad intelligent device or an internal controller fault, meaning the component itself is recognizing an internal voltage failure or hardware malfunction.

• MAGNUM AFS Connect
• Steiger AFS Connect

1. 1

   Check UCM power and ground connections (unswitched power, switched power, and ground) to verify baseline voltage to the module

2. 2

   Check CAN communication via diagnostic connectors (CAN 1/ISOBUS and CAN 3) and look for related communication codes (e.g., 2295-04 or 2295-02)

3. 3

   Measure the supply voltage directly at the Front pilot head #2 connector to determine if the low voltage is caused by a wiring harness drop/short or an internal failure

1. 1

   Connect diagnostic tool

   Connect the Case IH Electronic Service Tool (EST) to the diagnostic connector (Connector 1 or Connector 2, depending on the CAN bus being accessed).

2. 2

   Read fault codes

   Read and record all active and inactive fault codes in the UCM to confirm if 2295-12 is isolated or accompanied by CAN communication faults.

3. 3

   Inspect wiring harness

   Inspect the wiring harness routing between the UCM and the front pilot head #2. Look for pinched wires, chafing, corrosion at the pins, or open circuits.

4. 4

   Repair wiring or replace component

   Repair any damaged wiring. If the wiring harness is intact and providing proper voltage to the pilot head connector, the front pilot head #2 has an internal fault and must be replaced.

5. 5

   Configure new UCM

   If the UCM itself is deemed faulty and replaced, use the EST to configure the new UCM/VCM (for example, configuring the steering pump size to 500 CC, which is standard for these models).

6. 6

   Perform calibrations

   Perform necessary system calibrations (such as the Wheel Angle Sensor calibration) via the EST after replacing any steering or control components.

7. 7

   Clear codes and test

   Clear the inactive fault codes and test the machine's operation to ensure the code does not return.