Description:

This error code, ATC 000168.03, indicates that the control unit has detected a supply voltage exceeding the normal threshold, specifically more than 16 volts. This excessive voltage measurement was identified at pin 22, lead 0402, ELX. Such high voltage can pose a risk to the electronic components by potentially causing overheating or damage to the circuitry.

Reaction:

The high voltage condition may prompt the control unit to enter a protective mode to prevent damage to the electrical system. This could lead to reduced functionality or a shutdown of certain operations within the equipment to safeguard the electronic components.

Recommendations:

• Check Power Supply Source: Verify the source of power supply for anomalies that could cause an overvoltage condition. Inspect for faulty regulators or alternators that might be supplying excessive voltage.
• Inspect Electrical Connections: Look for any loose, corroded, or damaged connections that could affect voltage levels. Ensuring all connections are secure can help maintain proper voltage levels.
• Verify System Voltage with Multimeter: Use a multimeter to check the voltage at pin 22, lead 0402, ELX, and compare it with the standard specifications. This will confirm if the voltage is consistently too high.
• Examine Related Components: Inspect associated components that might influence voltage distribution, such as the voltage regulator and battery. Replace components if they are found to be faulty.
• System Reset and Re-test: After any repairs or adjustments, reset the control unit and re-test the system to ensure that the voltage levels are within the acceptable range and that the fault code does not reappear.

Note:

It is crucial to address voltage discrepancies promptly to avoid long-term damage to the electrical systems of the machinery. Regular monitoring and maintenance of the electrical system can prevent such issues and ensure reliable operation of your John Deere equipment.