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UIM codes

Discover Common John Deere UIM Fault Codes and Their Solutions

Understanding John Deere UIM fault codes is crucial for maintaining the optimal performance of your equipment. The UIM (User Interface Module) in GreenStar Display 2100/2400 is essential for converting driver commands into CAN BUS messages, ensuring smooth communication and operation. Below is a detailed overview of the most common John Deere UIM diagnostic trouble codes, their occurrences, and how to address them.

Common John Deere UIM Fault Codes

  1. UIM 000168.03 – Supply Voltage (ELX) Too High
    • Occurrence: This code is triggered when the system voltage exceeds 15.5 volts for more than 5 seconds.
    • Solution: Inspect the voltage regulator, alternator, and electrical connections. Ensure all components are functioning correctly and replace any faulty parts.
  2. UIM 000168.04 – Supply Voltage (ELX) Too Low
    • Occurrence: This code occurs when the system voltage drops below 10.0 volts for more than 5 seconds.
    • Solution: Check the battery, alternator, and all electrical connections. Replace any components that are not performing as expected.
  3. UIM 000628.02 – Control Unit Internal Fault
    • Occurrence: Triggered by faults in the EEPROM of the internal module.
    • Solution: Attempt a control unit reset, inspect connections, and consult technical support if the issue persists. Replacement of the control unit may be necessary.
  4. UIM 000639.14 – ISOBUS, Very High Error Rate
    • Occurrence: This code is saved when the UIM control unit receives faulty or incomplete data from the ISOBUS.
    • Solution: Inspect ISOBUS connections, cables, and devices. Update firmware and monitor communication traffic to identify and resolve issues.
  5. UIM 523526.10 – Button J Defective
    • Occurrence: Triggered if Button J remains actuated for more than 60 seconds during initialization or 10 minutes during operation.
    • Solution: Inspect and clean Button J. Test its functionality and replace if defective. Check associated wiring and connections.

Where These Codes Occur

These error codes are predominantly found in the UIM of John Deere’s GreenStar Display 2100/2400 systems. The UIM is responsible for processing user inputs via the keyboard, converting these commands into CAN BUS messages, and transmitting them to the VTI (Vehicle Terminal Interface). Proper functioning of the UIM is vital for seamless equipment operation and avoiding interruptions caused by faulty inputs or communication errors.

Regular maintenance and prompt addressing of any detected UIM fault codes ensure the longevity and reliability of your John Deere equipment. Keeping the control unit firmware updated and regularly inspecting electrical connections can prevent many of these common issues.

For more detailed information on each code and its specific troubleshooting steps, consult your John Deere service manual or technical support.

  • UIM 523910.02 – Control Unit Internal Fault

    John Deere

    This diagnostic trouble code is triggered if an internal memory fault occurs while data is being saved. This indicates a problem within the control unit’s memory, potentially affecting its ability to store and retrieve data correctly.

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  • UIM 523538.10 – Button “Confirm” Defective

    John Deere

    This diagnostic trouble code is triggered if the Confirm Button remains continuously actuated for more than 60 seconds during initialization (after the ignition has been switched on), or if the button is registered as “actuated” for more than 10 minutes…

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  • UIM 523537.10 – Button “Cancel” Defective

    John Deere

    This diagnostic trouble code is triggered if the Cancel Button remains continuously actuated for more than 60 seconds during initialization (after the ignition has been switched on), or if the button is registered as “actuated” for more than 10 minutes…

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  • UIM 523536.10 – Menu Button Defective

    John Deere

    This diagnostic trouble code is triggered if the Menu Button remains continuously actuated for more than 60 seconds during initialization (after the ignition has been switched on), or if the button is registered as “actuated” for more than 10 minutes…

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  • UIM 523535.10 – Button A Defective

    John Deere

    This diagnostic trouble code is triggered if Button A remains continuously actuated for more than 60 seconds during initialization (after the ignition has been switched on), or if the button is registered as “actuated” for more than 10 minutes during…

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  • UIM 523534.10 – Button B Defective

    John Deere

    This diagnostic trouble code is triggered if Button B remains continuously actuated for more than 60 seconds during initialization (after the ignition has been switched on), or if the button is registered as “actuated” for more than 10 minutes during…

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  • UIM 523533.10 – Button C Defective

    John Deere

    This diagnostic trouble code is triggered if Button C remains continuously actuated for more than 60 seconds during initialization (after the ignition has been switched on), or if the button is registered as “actuated” for more than 10 minutes during…

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  • UIM 523532.10 – Button D Defective

    John Deere

    This diagnostic trouble code is triggered if Button D remains continuously actuated for more than 60 seconds during initialization (after the ignition has been switched on), or if the button is registered as “actuated” for more than 10 minutes during…

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  • UIM 523531.10 – Button E Defective

    John Deere

    This diagnostic trouble code is triggered if Button E remains continuously actuated for more than 60 seconds during initialization (after the ignition has been switched on), or if the button is registered as “actuated” for more than 10 minutes during…

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  • UIM 523530.10 – Button F Defective

    John Deere

    This diagnostic trouble code is triggered if Button F remains continuously actuated for more than 60 seconds during initialization (after the ignition has been switched on), or if the button is registered as “actuated” for more than 10 minutes during…

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  • UIM 523529.10 – Button G Defective

    John Deere

    This diagnostic trouble code is triggered if Button G remains continuously actuated for more than 60 seconds during initialization (after the ignition has been switched on), or if the button is registered as “actuated” for more than 10 minutes during…

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