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Resetting Error Codes on Bobcat S150 Skid Steer: A Complete Guide
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The Bobcat S150 skid steer loader is a robust and reliable machine that is widely used in construction, landscaping, and material handling. However, like all heavy machinery, the Bobcat S150 is equipped with an onboard diagnostic system that can trigger error codes when certain issues arise. These error codes are essential for troubleshooting and addressing mechanical or electrical problems. In some cases, operators may need to reset the error codes, especially after repairs or maintenance.
This article provides a comprehensive guide on how to reset error codes on a Bobcat S150 skid steer. It will also delve into common issues that trigger these codes, their potential causes, and how to address them to keep the machine in optimal working condition.
Key Terminology
  • Error Codes: Diagnostic codes generated by the machine’s onboard computer to indicate specific issues or malfunctions within the system.
  • ECM (Electronic Control Module): The brain of the machine, the ECM monitors and controls various components, including the engine, transmission, and hydraulic systems.
  • Diagnostic Mode: A system that allows operators or technicians to access error codes and troubleshoot machine issues using a diagnostic tool or the machine’s built-in display.
  • Reset: The process of clearing error codes from the system after a fault has been diagnosed and resolved.
Why Error Codes Appear
Error codes appear on the display screen of the Bobcat S150 for several reasons. Some of the most common causes include:
  • Engine problems: Low oil pressure, overheating, or sensor malfunctions can trigger error codes related to the engine.
  • Hydraulic system malfunctions: Issues such as low hydraulic fluid or faulty pumps can activate specific hydraulic-related error codes.
  • Electrical issues: Problems with wiring, connectors, or sensors can lead to diagnostic trouble codes.
  • Transmission or drive system issues: Malfunctions within the drivetrain or transmission can also trigger error codes, particularly in relation to the power output of the machine.
How to Reset Error Codes on a Bobcat S150
Resetting error codes on a Bobcat S150 is a straightforward process that can be done using the machine’s control panel or a diagnostic tool. Here’s how to do it:
1. Turn Off the Machine
Before performing any work on the Bobcat S150, ensure the machine is turned off and the key is removed from the ignition. This ensures safety and prevents accidental activation of systems during the reset process.
2. Access the Diagnostic Mode
On the Bobcat S150, error codes can be accessed via the control panel. To enter diagnostic mode, follow these steps:
  • Insert the key and turn it to the “ON” position without starting the engine.
  • Locate the “Display” button on the control panel.
  • Press and hold the “Display” button for about 5 seconds until the display shows the error codes.
  • The display will show a list of active error codes, which can be used to identify specific problems with the machine.
3. Identify and Address the Issues
Before resetting the error codes, it is essential to identify and resolve the issues causing the codes. If the error code is related to a mechanical or electrical fault, take the necessary steps to repair the problem. For example:
  • Low oil pressure: Check the oil level and condition, and top up or replace the oil if necessary.
  • Hydraulic issues: Inspect the hydraulic fluid levels and check for leaks or damage in hoses or valves.
  • Electrical problems: Inspect the wiring and connectors for any signs of wear, corrosion, or damage.
If the error code is not related to a real problem and has appeared due to a temporary glitch, it may be safe to proceed with resetting the codes.
4. Reset the Error Codes
Once the issue has been addressed or deemed non-critical, you can proceed to reset the error codes:
  • On the display panel, navigate to the “Reset” option using the menu buttons.
  • Press the “Reset” button and hold it for a few seconds until the codes are cleared from the display.
  • Once the codes are cleared, the machine’s control system should return to normal operation. If the issue was resolved, the error codes should not return. If the error codes reappear, it’s important to investigate further.
5. Start the Machine
After resetting the codes, start the machine and monitor the performance. If the error codes do not return and the machine is operating normally, the reset was successful. However, if the codes reappear or if you experience any operational issues, you may need to consult with a technician for further diagnostics.
Common Error Codes on Bobcat S150
Understanding the common error codes that may appear on your Bobcat S150 is crucial for diagnosing problems quickly. Some of the most common codes include:
  • Error Code 32: Hydraulic oil pressure issue. This can be caused by low hydraulic fluid, a malfunctioning pump, or a clogged filter.
  • Error Code 35: Engine overheating. Ensure that the cooling system is functioning correctly, and check for coolant leaks or low coolant levels.
  • Error Code 50: Faulty engine sensors. This may indicate a problem with the engine’s temperature, oil pressure, or fuel pressure sensors.
  • Error Code 81: Electrical system issue. A loose or corroded wire connection can trigger this error.
  • Error Code 99: Transmission problem. This can indicate low transmission fluid or a fault in the transmission system.
Preventive Measures to Avoid Error Codes
While resetting error codes can help keep your Bobcat S150 running smoothly, it’s important to take proactive steps to avoid the codes from appearing in the first place. Regular maintenance and proper care can prevent many of the issues that trigger these codes. Here are some tips:
  1. Regular Fluid Checks: Ensure that the engine oil, hydraulic fluid, and coolant are at the proper levels and in good condition. Dirty or low fluids can lead to system malfunctions.
  2. Scheduled Maintenance: Follow the manufacturer’s recommended maintenance schedule for routine checks and services. This includes inspecting components like belts, hoses, filters, and sensors.
  3. Electrical Inspections: Periodically inspect wiring and connectors for signs of wear, corrosion, or damage. Addressing these issues early can prevent electrical error codes from appearing.
  4. Keep the Machine Clean: Regularly clean the machine to prevent dirt, debris, and corrosion from affecting sensitive components such as the sensors and wiring.
Conclusion
The Bobcat S150 skid steer is a powerful and versatile machine that can handle a variety of tasks. However, like any piece of machinery, it can experience issues that trigger error codes. Resetting these error codes is a simple process that can be done using the machine’s control panel. However, it’s essential to first address the underlying issues that caused the codes to appear. Regular maintenance and careful inspection can help prevent many of the common problems that lead to error codes, ensuring that your Bobcat S150 continues to perform optimally for years to come.
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