Case IH 2095 – Transmission Control Module (TCM): Clutch 1 not calibrated

The transmission control system lacks the necessary quick-fill calibration data for Clutch 1, which is required for smooth engagement and shifting. It is typically a software/calibration condition rather than an immediate hardware failure.

• Maxxum
• Puma 140
• Puma 210
• Farmall 40-45-50 CVT
• Farmall 75C
• Farmall 115U
• 5100 Maxxum

1. 1

   Check transmission fluid temperature (must be at least 60 °C / 140 °F). The system will block calibration attempts until this temperature is reached.

2. 2

   Check the display for any other active fault codes (four-digit numbers beginning with '2', such as solenoid short circuits) and correct them before attempting calibration.

3. 3

   Ensure the parking brake is released and the tractor is in a clear, open area, as the tractor will physically move during the clutch testing phase.

1. 1

   Warm up transmission fluid

   Start the tractor and ensure the transmission fluid is at least 60 °C.

2. 2

   Shift to Neutral

   Shift the shuttle lever and range levers into the Neutral position.

3. 3

   Access calibration menu

   Access the transmission calibration menu (often displayed as "ch _" on the lower central display). Use the "h" and "m" keys to navigate to the clutch calibration channels.

4. 4

   Select Clutch 1

   Use the upshift or downshift switch to select "C1" (Clutch 1). The lower central display will show the selected clutch and its current quick-fill setting.

5. 5

   Adjust quick-fill setting

   Use the upshift/downshift switches to adjust the quick-fill setting. For 16x16 transmissions, this is typically set between 3 and 19 (30 to 190 ms). For 24x24 transmissions, the range is usually 3 to 9 (30 to 90 ms).

6. 6

   Test the setting

   Shift the shuttle lever into forward and slowly release the clutch pedal.

7. 7

   Observe and adjust

   Observe the tractor's behavior: Too much quick-fill will cause a harsh, noticeable tractor jump; too little will cause a sluggish, slow response. Adjust the ms value until engagement is smooth.

8. 8

   Save and exit

   Save the calibration and exit the menu (often by depressing the "dimming" key).