Case IH 2374 – Universal Control Module (UCM): Creeper Calibration Error

The system was unable to successfully calibrate the creeper gear's engaged and disengaged positions, or the calibration values are out of the expected range.

• Puma/Mid Range Magnum
• Puma 125
• Puma 140
• Puma 150
• Puma 165
• Puma 175
• Puma 180
• Puma 190
• Puma 210
• Puma 225
• Magnum MX210
• Magnum MX230
• Magnum MX255
• Magnum MX285
• Steiger Series

1. 1

   Check that the tractor battery power supply has not been connected to an external power supply. If an external power supply is connected, disconnect it and test the system for normal operation.

2. 2

   Inspect the creeper synchronizer and its linkage for physical damage or binding.

3. 3

   Check the creeper adjustment and ensure the end-of-range bolts are properly adjusted.

1. 1

   Adjust End-of-Range Bolts

   Adjust the end-of-range bolts on the creeper linkage.

2. 2

   Perform Creeper Calibration

   Ensure the tractor is stationary and the clutch pedal is fully released. Calibrate the creeper by engaging and then disengaging the creeper using the creeper switch.

3. 3

   Repair Mechanical Faults

   If the calibration fails and mechanical inspection revealed damage, repair or replace the creeper synchronizer or its linkage as required.

4. 4

   Replace Potentiometer

   If the mechanical components are okay but the calibration still fails, remove and replace the creeper potentiometer.

5. 5

   Replace UCM

   If the fault recurs after all mechanical fixes, potentiometer replacement, and recalibration attempts, remove and replace the Universal Control Module (UCM).