Case IH 10014 – Front Suspension Controller: Front Suspension Not calibrated error

This indicates that the control module does not have valid calibration values stored for the front axle suspension system's full range of travel (minimum and maximum heights), or a recent calibration attempt failed or was interrupted.

• Magnum
• Case IH Magnum 215
• Case IH Magnum 225
• Case IH Magnum 235
• Case IH Magnum 245
• Case IH Magnum 250
• Case IH Magnum 275
• Case IH Magnum 280
• Case IH Magnum 305
• Case IH Magnum 310
• Case IH Magnum 335
• Case IH Magnum 340

1. 1

   Check for accompanying active sensor codes such as 10004/10005 (Position sensor out of range) or 10008–10011 (Piston/Rod pressure transducer range errors) and resolve them first.

2. 2

   Visually inspect the front suspension position sensor (potentiometer) and its mechanical linkage located under the front left of the tractor. Ensure the linkage is not bent, broken, or disconnected.

3. 3

   Verify the position sensor voltage changes smoothly as the suspension moves using a multimeter or diagnostic tool. The voltage must not drop below the expected absolute limit (typically 740mV).

4. 4

   Verify the nitrogen charge pressure in the suspension accumulators. Case IH accumulator charge pressure should typically be between 856–899 PSI.

5. 5

   Ensure the regulated hydraulic pressure is within specification (typically 22.4 - 24.5 bar / 325 - 355 psi at 1500 RPM).

1. 1

   Prepare tractor for calibration

   Park the tractor on a flat, level surface. Ensure there are no heavy front implements attached that might restrict full suspension travel.

2. 2

   Warm up hydraulic oil

   Start the engine and let it run until the hydraulic oil reaches normal operating temperature (at least 49°C / 120°F).

3. 3

   Access calibration menu

   Access the calibration menu using the CNH Electronic Service Tool (EST) laptop, or via the tractor's built-in diagnostic HH Menu by inserting the diagnostic test switch (Tool 380000488) into the diagnostic connector (C125) located behind the Electronic Draft Control panel.

4. 4

   Navigate to Front Suspension Calibration

   Navigate to the Front Suspension Calibration menu on the instrument cluster or EST.

5. 5

   Initiate calibration

   Follow the on-screen prompts to initiate the calibration. The system will automatically command the hydraulic valves to raise the front axle to its maximum height and lower it to its minimum height.

6. 6

   Record voltages

   The controller will record the position sensor voltages at both extremes.

7. 7

   Troubleshoot failed calibration

   If the calibration fails (e.g., throws a code 141 or 150 during the process), manually adjust the position sensor linkage to ensure the voltage stays within the 740mV - 4500mV range, and verify the rod/piston pressure sensors are not reading out of range.

8. 8

   Save parameters and test drive

   Once calibration is successful, cycle the key switch to save the parameters and test drive the tractor to confirm the suspension operates smoothly.