AIC 522546.02 – Faulty Gear Selector Switch Transitions. John Deere System Alert.

AIC 522546.02 (AIC )

Code: 522546.02



This error code, AIC 522546.02, is reported due to faulty shift transitions when engaging either upshifting or downshifting at the gear selector switch. This could be indicative of a defective switch or a malfunction within the associated circuitry, which affects the smooth operation and response of the gear selection process.


The control software has restricted or completely disabled the functionality of the gear selector switch in response to this fault, to prevent misshifting or other operational hazards that could arise from unpredictable gear transitions.


  • Inspect the Gear Selector Switch: Check for any physical damage, signs of wear, or obstructions that could be impacting the switch’s operation. Pay special attention to the mechanical aspects of the switch that engage during shifting.
  • Evaluate Electrical Circuitry: Perform a thorough examination of the electrical connections and circuitry associated with the gear selector switch. Look for loose connections, signs of corrosion, or damaged wiring that could be causing electrical faults.
  • Replace or Repair Faulty Components: If the switch or any part of the circuit is found to be defective, proceed with repairs or replacement as necessary to ensure proper function.
  • Test Shift Transitions: After any repair or replacement, comprehensively test the gear selector switch to ensure that all transitions between gears are smooth and correct, without any faults during upshifting or downshifting.
  • System Reset and Functional Verification: Reset the control system to clear any fault states. Perform a full operational test to confirm that the gear selector switch functions effectively across all intended uses.


Maintaining the operational integrity of transmission controls like the gear selector switch is critical for the safety and efficiency of machinery. Regular maintenance and prompt attention to issues such as shifting faults are essential to ensure that the equipment operates reliably and continues to meet performance standards.