Deere 710G Brake Code and Electronic Problems: Troubleshooting Guide

[MikePhua]

The John Deere 710G is a well-regarded tractor loader that has earned its place on construction sites and in various other industries due to its durability and reliability. However, like many modern machines equipped with advanced electronic systems, the 710G is not immune to occasional malfunctions. One such issue that operators may encounter is the sporadic brake code and electronic problems, which can be frustrating and, if left unresolved, affect the performance and safety of the machine. In this article, we will explore the common causes of these problems, provide solutions, and offer preventative measures to ensure the machine operates smoothly.
Overview of the John Deere 710G
The John Deere 710G is part of the G-series tractor loader line, which was designed to offer improved performance, increased fuel efficiency, and advanced technological integration. Known for its powerful engine and versatile capabilities, the 710G can be used for tasks such as digging, lifting, grading, and material handling.

• Engine Power: Powered by a 6.8L, 6-cylinder diesel engine, the 710G produces approximately 110 horsepower. This allows the machine to operate heavy attachments and tackle demanding tasks.
  
• Hydraulic System: The 710G features a high-flow hydraulic system that can handle a variety of attachments, providing exceptional lifting and digging power.
  
• Electronic Control: The tractor loader uses electronic systems to monitor and control various components, such as the braking system, engine performance, and hydraulics. While these systems provide greater control and efficiency, they can also be prone to issues if not properly maintained.
  

The machine’s electronic system plays a significant role in its operation, especially in managing safety features like the braking system. When an electronic problem occurs, it can trigger error codes, including brake system warnings, that may need to be addressed promptly.
Common Causes of Brake Code and Electronic Problems

1. Faulty Brake Pressure Sensor
   • Description: The brake system on the Deere 710G uses sensors to monitor brake pressure and activate appropriate warning systems. If the brake pressure sensor malfunctions or provides inaccurate readings, it can trigger brake error codes.
     
   • Symptoms: The operator may notice warning lights on the dashboard indicating a brake issue. The machine may also fail to stop properly, or the brake system may engage or disengage erratically.
     
   • Solution: Inspect the brake pressure sensor for signs of damage, wear, or contamination. If the sensor is faulty, it should be replaced. Ensure that the sensor wiring is properly connected and not corroded.
     
2. Electrical Wiring and Connections
   • Description: The electrical system in the 710G connects multiple components, including the brake system, sensors, and control units. Loose or corroded connections can lead to intermittent electrical faults, including the appearance of ghost codes.
     
   • Symptoms: Sporadic brake codes may appear on the dashboard, and the system may reset itself unexpectedly. The machine may also experience power surges or erratic behavior in the control panel.
     
   • Solution: Inspect the electrical wiring and connections related to the braking system and the main control module. Clean and tighten any loose or corroded connections, ensuring that all wiring is in good condition.
     
3. Faulty Electronic Control Unit (ECU)
   • Description: The ECU in the 710G manages the electronic functions of the machine, including the brake system. A malfunctioning ECU may not interpret sensor data correctly, triggering false error codes or causing the brake system to act erratically.
     
   • Symptoms: The appearance of “ghost” brake codes, or codes that disappear and reappear intermittently, is often a sign of an issue with the ECU. The machine may also exhibit unpredictable behavior in response to brake commands.
     
   • Solution: If the ECU is suspected to be the issue, it should be diagnosed using specialized software. In some cases, the ECU may need to be reprogrammed or replaced if it is determined to be malfunctioning.
     
4. Low Voltage or Battery Issues
   • Description: Low battery voltage or a failing battery can cause electrical fluctuations that affect the operation of the braking system. Electronic components such as sensors and the ECU require a stable voltage to function correctly.
     
   • Symptoms: When the battery voltage is too low, the machine may fail to start, or it may display random or incorrect error codes. The brake system may also be inconsistent in its performance.
     
   • Solution: Test the battery voltage and inspect the battery for signs of wear or damage. Ensure that the charging system is functioning properly. If necessary, replace the battery and check the alternator to ensure it is charging the battery correctly.
     
5. Contaminated Brake Fluid
   • Description: Contaminants in the brake fluid can interfere with the proper functioning of the brake system. Debris or moisture in the brake lines can lead to pressure inconsistencies and malfunctioning sensors.
     
   • Symptoms: If the brake fluid is contaminated, the system may become less responsive, or the brake pressure sensor may give false readings, triggering brake codes. In extreme cases, the brake system may fail to engage entirely.
     
   • Solution: Flush the brake fluid and replace it with fresh, clean fluid. Inspect the brake lines for any signs of leaks or damage, and ensure that the system is free of contaminants.
     
6. Faulty Brake Valves or Actuators
   • Description: The valves and actuators in the brake system control the flow of fluid to the brakes. If a valve or actuator malfunctions, it can prevent the brake system from engaging or disengaging properly.
     
   • Symptoms: The brake system may engage intermittently or fail to engage completely, resulting in delayed stopping power. This can also cause the appearance of brake codes.
     
   • Solution: Inspect the brake valves and actuators for proper operation. If there is any sign of failure or wear, these components should be replaced.
     

Troubleshooting and Fixing Brake Code Issues

1. Use Diagnostic Software:
   • Start by connecting the machine to diagnostic software to retrieve any stored error codes. This will help pinpoint the exact issue, whether it is related to the brake system, the ECU, or another electronic component.
     
2. Inspect the Brake System Components:
   • Begin by checking the brake pressure sensor, wiring, and connections. Make sure that the brake fluid is clean, and the brake lines are not damaged. Look for signs of contamination in the fluid.
     
3. Check the Electrical System:
   • Test the battery voltage to ensure it is adequate. Inspect the alternator and charging system for any issues. Also, ensure that all electrical connections are clean and secure.
     
4. Test the ECU:
   • If no obvious issues are found with the brake components or wiring, the problem may lie with the ECU. Have the ECU diagnosed using specialized diagnostic equipment, and reprogram or replace it as needed.
     
5. Recalibrate the Brake System:
   • After addressing any faults, recalibrate the brake system to ensure that it is working as intended. Follow the procedures outlined in the service manual to reset the system and clear any stored error codes.
     

Preventative Maintenance Tips

1. Regular Brake Fluid Checks:
   • Make it a habit to check the brake fluid regularly and replace it at the recommended intervals. Clean fluid ensures that the brake system functions optimally and helps prevent issues with contamination.
     
2. Inspect Electrical Connections:
   • Regularly inspect the electrical wiring and connectors for signs of wear or corrosion. Clean and tighten connections to avoid electrical faults that can trigger false error codes.
     
3. Maintain the Battery:
   • Ensure the battery is in good condition and has adequate charge. Regularly test the voltage and check the charging system to avoid power issues that could affect the brake system and other electronic components.
     
4. Monitor Brake System Performance:
   • Regularly test the braking system to ensure it engages and disengages properly. Pay attention to the response time and stopping power, especially if the machine is used for heavy lifting or grading tasks.
     

Conclusion
The John Deere 710G tractor loader is a powerful and reliable machine, but like any complex piece of machinery, it can experience problems with its electronic and braking systems. The sporadic brake codes and ghostly electronic issues that some operators experience can often be traced back to issues such as faulty sensors, electrical malfunctions, low battery voltage, or hydraulic system problems. By diagnosing the issue methodically and addressing the underlying cause, operators can restore proper brake function and prevent future problems. Regular maintenance and timely troubleshooting are key to ensuring the 710G continues to perform reliably on the job.