Case IH 10008 – Front Suspension Control Module: Go down error - suspension unable to return to set point

The front axle active suspension system is attempting to lower the tractor to its nominal height (the calibrated set point) but is physically or electronically unable to do so. This can also indicate a Front Suspension Piston Pressure transducer range high error, meaning the pressure sensor on the suspension cylinder is reading a higher pressure than expected for the commanded position.

• Puma/Mid Range Magnum
• Maxxum
• MAXXUM T4E
• Puma Series
• Magnum Series
• Maxxum Series
• Steiger Series

1. 1

   Check for mechanical binding or heavy debris preventing the suspension cylinders from compressing

2. 2

   Inspect the front axle rotary position sensor and its physical linkage rod for being bent, disconnected, or seized

3. 3

   Inspect the wiring harness to the front axle position sensor and suspension piston pressure transducers for shorts to ground, shorts to 5V power, or open circuits

4. 4

   Test the lower lockout solenoid valve on the suspension manifold to ensure it is opening to release pressure

5. 5

   Check if fault code 10024 ('Front suspension not calibrated') is also present, indicating lost set points

1. 1

   Park and secure machine

   Park the tractor on a level surface, engage the parking brake, and ensure the area around the front axle is clear.

2. 2

   Inspect mechanical components

   Visually inspect the front suspension mechanical components for physical damage preventing downward movement.

3. 3

   Inspect position sensor linkage

   Locate the front axle suspension position sensor. Reconnect or replace the linkage rod if it is broken or disconnected.

4. 4

   Test wiring harness

   Using a multimeter, test the voltage and continuity of the wiring harness going to the position sensor and the piston pressure transducer. Repair any damaged wiring.

5. 5

   Replace sensors

   If the wiring is intact but the sensor readings are erratic or out of range, replace the front axle position sensor or the pressure transducer.

6. 6

   Check lockout solenoid

   Check the lower lockout solenoid valve on the suspension manifold. Clean the valve block and replace the solenoid if it fails to actuate.

7. 7

   Perform calibration

   After replacing any sensors or resolving mechanical binds, use the tractor's instrument cluster or a diagnostic service tool to perform a full Front Suspension Calibration procedure so the module can relearn the nominal height set points.

8. 8

   Verify repair

   Clear the fault codes and test drive the tractor to verify the suspension raises and lowers correctly.