ACU 000630.02 (ACU 630.02 ) – Calibration Integrity Issue in Armrest Control Unit

ACU 000630.02 (ACU 630.02)

Code: 000630.02

Shortcode: 630.02


Error code ACU 630.02 arises due to invalid calibration values or a failure in the calibration memory within the armrest control unit. This could result from corrupted data, improper calibration processes, or physical issues with the memory storing the calibration data.


The control unit has degraded functionality as a result of this calibration fault, potentially impacting the accuracy and performance of the machinery’s operations.


  • Re-calibrate the armrest control unit according to John Deere’s recommended procedures to ensure that all calibration values are correctly set and stored.
  • Check and, if necessary, replace the memory components that store calibration settings if they are found to be defective or failing.
  • Update the firmware or software of the armrest control unit, as this can sometimes resolve issues related to data corruption or incompatibility.
  • If recalibration and software updates do not resolve the issue, it is advisable to perform a comprehensive diagnostic to identify any deeper hardware or software problems.
  • Consult with a certified John Deere technician for specialized support, especially if the calibration issues continue to degrade equipment functionality.


Calibration integrity is crucial for optimal equipment performance. Regular checks and maintenance of the calibration settings are recommended to avoid such faults.