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AIC codes

John Deere AIC Fault Codes / AIC Error Codes

The Armrest Integrated Controller (AIC) plays a crucial role in centralizing the processing and integration of control signals within John Deere tractors. It effectively broadcasts signals across CAN Bus and LIN Bus systems, coordinating the tractor’s various systems. This component is essential, especially in tractors with the CommandARM™ control system, where it resides in the A012 control unit and forms an integral part of the cab control unit.

AIC software processes a broad range of inputs from devices such as:

Various positioned LIN Bus Modules (e.g., H, W, D, E, P, F, G, S, K)
Electro-hydraulic distributor control levers (E-SCV)
Speed control sensors
Front and rear PTO switches
Throttle and transmission control lever potentiometers

By ensuring precise signal processing and transmission, the AIC allows tractors to accurately respond to operator commands and manage load operations among other control functions. When it detects signal discrepancies or errors, the system logs specific AIC error codes to help diagnose and resolve system issues.

These error codes are vital for the maintenance and repair processes, allowing for the quick identification and resolution of issues related to the tractor’s electronic and hydraulic systems. By addressing every signal discrepancy or operational fault promptly, these codes help maintain optimal tractor performance and safety.

AIC 522546.02 – Faulty Gear Selector Switch Transitions. John Deere System Alert.
John Deere AIC codes
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…
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AIC 522189.11 – Stuck or Defective iTEC™ Program Selection Switch. John Deere System Advisory.
John Deere AIC codes
This error code arises when the switch for the iTEC™ program selection is pressed for an excessively long duration, which may signal that the switch is either stuck, defective, or experiencing a shorted circuit. This prolonged activation could result from…
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AIC 522189.04 – Low Voltage Fault in iTEC™ Program Selection Switch. John Deere System Alert.
John Deere AIC codes
This error code identifies a significant issue where the voltage at the iTEC™ program selection switch is abnormally low, indicating a short to ground. This could result from compromised wiring, a faulty switch, or issues within the electrical circuitry connected…
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AIC 522189.03 – High Voltage Fault in iTEC™ Program Selection Switch. John Deere System Alert.
John Deere AIC codes
This error code points to an electrical issue with the iTEC™ program selection switch, specifically identifying that the voltage at the switch is abnormally high, suggesting a short to a 12V source. This condition indicates a potential electrical short circuit…
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AIC 522189.02 – Circuit Fault in iTEC™ Program Selection Switch. John Deere System Notification.
John Deere AIC codes
The error code AIC 522189.02 highlights a circuit fault involving the iTEC™ program selection switch. Specifically, an incorrect switch logic has been detected at the switch for iTEC™ program sequences 3 and 4, suggesting a potential fault in either the…
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AIC 522077.11 – Fault in iTEC™ Program Selection Switch. John Deere System Alert.
John Deere AIC codes
This error code indicates a malfunction with the iTEC™ program selection switch, which has been pressed for an excessively long duration. This behavior suggests that the switch may be stuck or contaminated with dirt, which prevents it from releasing properly…
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AIC 521577.09 – Missing Communication in Armrest Rear Right Module. John Deere System Advisory.
John Deere AIC codes
This error code signals a failure in communication where the Armrest Interface Control software (AIC) is not receiving LIN messages from the armrest rear right module. The data transfer issue originates from LIN Bus position P, indicating potential complications either…
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AIC 521574.09 – Missing LIN Message from Armrest Middle Right Module. John Deere System Alert.
John Deere AIC codes
The error AIC 521574.09 is reported when the Armrest Interface Control software (AIC) fails to receive a LIN message from the armrest middle right module. This communication breakdown involves data transfer issues between the AIC and the LIN Bus at…
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AIC 521573.09 – Communication Fault in Armrest Front Right Module. John Deere System Advisory.
John Deere AIC codes
This error code, AIC 521573.09, indicates a failure in the communication system where the Armrest Interface Control software (AIC) is not receiving LIN messages from the armrest front right module. The issue has been traced to a data transfer problem…
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AIC 521572.09 – Missing Communication in Armrest Front Middle Module. John Deere System
John Deere AIC codes
The error code AIC 521572.09 reveals a significant communication issue where the Armrest Interface Control software (AIC) is not receiving essential LIN messages from the armrest front middle module. The fault is identified as a data transfer problem originating from…
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AIC 521571.09 – Communication Disruption in Armrest Front Left Module. John Deere System Alert.
John Deere AIC codes
This error code, AIC 521571.09, indicates that the Armrest Interface Control software (AIC) is not receiving LIN messages from the armrest front left module. The issue is traced back to a data transfer problem with the LIN Bus module at…
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John Deere News & Innovations: Equipment, Technology, Solutions

AIC codes

John Deere AIC Fault Codes / AIC Error Codes

AIC software processes a broad range of inputs from devices such as:

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

AIC 522189.11 – Stuck or Defective iTEC™ Program Selection Switch. John Deere System Advisory.

AIC 522189.04 – Low Voltage Fault in iTEC™ Program Selection Switch. John Deere System Alert.

AIC 522189.03 – High Voltage Fault in iTEC™ Program Selection Switch. John Deere System Alert.

AIC 522189.02 – Circuit Fault in iTEC™ Program Selection Switch. John Deere System Notification.

AIC 522077.11 – Fault in iTEC™ Program Selection Switch. John Deere System Alert.

AIC 521577.09 – Missing Communication in Armrest Rear Right Module. John Deere System Advisory.

AIC 521574.09 – Missing LIN Message from Armrest Middle Right Module. John Deere System Alert.

AIC 521573.09 – Communication Fault in Armrest Front Right Module. John Deere System Advisory.

AIC 521572.09 – Missing Communication in Armrest Front Middle Module. John Deere System

AIC 521571.09 – Communication Disruption in Armrest Front Left Module. John Deere System Alert.

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