Massey Ferguson 05.00.80 – Suspension Module: Issue With Front Axle Calibration Stored In Suspension Module Dyna VT (SUSPENSION)

Calibration data for the suspended front axle is either missing, corrupted, or out of range within the tractor's electronic systems, preventing the front axle suspension from operating correctly.

• 7714
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S
• Tier 4 (2015-2021)
• 5400 series
• 5600 series
• 6400 series
• 6600 series
• 7400 series
• 7600 series
• 7700 series
• 8600 series
• 8700 series

1. 1

   Check for related fault codes (e.g., 05.00.81 through 05.00.84, FA133-FA136, FA221-FA225) that indicate hardware or signal voltage issues rather than just a calibration loss

2. 2

   Inspect the Suspended Front Axle Position Sensor (X166 or X167) housing for moisture intrusion or physical damage

3. 3

   Ensure the wiring harness and connectors to the position sensor are clean, tight, and free of corrosion

4. 4

   Verify the mechanical linkage and ring holder bush connecting the sensor to the axle are properly aligned and not damaged

1. 1

   Prepare tractor for calibration

   Park the tractor on a level surface with the engine running and the transmission in neutral.

2. 2

   Initiate calibration mode

   Press and hold the front axle suspension button on the side pillar/console until the indicator light begins to flash, then release it.

3. 3

   Raise suspension

   Press the button again and hold it until the front suspension raises to its maximum top position, then release it.

4. 4

   Lower suspension

   Press the 'off' (or lower) button and hold it until the suspension drops to its lowest bottom position, then release it.

5. 5

   Complete calibration

   The system will then automatically set itself between the upper and lower stops, completing the calibration.

6. 6

   Test drive

   Test drive the tractor to ensure the suspension operates smoothly and the code does not return.

7. 7

   Disconnect sensor (if calibration fails)

   If the calibration fails to save or the fault code immediately returns, disconnect the electrical connector from the front axle position sensor.

8. 8

   Remove sensor cover

   Unscrew the sensor cover attachment bolts.

9. 9

   Remove sensor assembly

   Unscrew the sensor support screws and remove the sensor assembly.

10. 10

    Mark alignment

    Mark the position of the ring holder bush/rubber ring in its housing to ensure correct alignment during reassembly.

11. 11

    Install new sensor

    Install the new sensor, aligning the bush with your previous marks.

12. 12

    Reconnect and calibrate

    Reconnect the wiring harness and perform the manual calibration procedure outlined in Steps 1-5.

13. 13

    Clear DTCs

    Clear the stored DTCs using a diagnostic tool.