07-04-2025, 04:12 PM
1. Issue Overview
On the Panswork forum, a user reported multiple error codes appearing on their Bobcat S175 skid steer loader. The user mentioned seeing the 04-21, 05-21, and 09-21 codes and requested assistance with diagnosing the issue. These error codes are often related to electrical system problems or sensor malfunctions, and addressing them promptly is essential to keep the machine operating properly.
2. Error Code Analysis
When the Bobcat S175 displays the 04-21, 05-21, and 09-21 error codes, it usually points to issues with the battery voltage, cooling system, or sensors. By checking the battery voltage, coolant levels, and sensors, you can address these error codes effectively.
Regular maintenance of the battery, cooling system, and sensor checks can help prevent these issues from recurring. If the problem persists, it's advisable to contact a professional technician for further diagnosis and repair.
On the Panswork forum, a user reported multiple error codes appearing on their Bobcat S175 skid steer loader. The user mentioned seeing the 04-21, 05-21, and 09-21 codes and requested assistance with diagnosing the issue. These error codes are often related to electrical system problems or sensor malfunctions, and addressing them promptly is essential to keep the machine operating properly.
2. Error Code Analysis
- 04-21 Code: Low Battery Voltage
- This error code typically indicates that the battery voltage is low, which could be caused by an aging battery, poor battery connections, or a faulty charging system. Insufficient battery voltage can affect the machine's starting ability and overall electrical system.
- This error code typically indicates that the battery voltage is low, which could be caused by an aging battery, poor battery connections, or a faulty charging system. Insufficient battery voltage can affect the machine's starting ability and overall electrical system.
- 05-21 Code: Engine Overheating
- The 05-21 code signals that the engine is running too hot, which could be due to issues with the cooling system, low coolant levels, a clogged radiator, or a malfunctioning temperature sensor. Operating at high temperatures for extended periods can damage the engine, so it's important to check the cooling system immediately.
- The 05-21 code signals that the engine is running too hot, which could be due to issues with the cooling system, low coolant levels, a clogged radiator, or a malfunctioning temperature sensor. Operating at high temperatures for extended periods can damage the engine, so it's important to check the cooling system immediately.
- 09-21 Code: Sensor Malfunction
- This code is usually associated with sensor issues, particularly sensors in the engine or control system. A faulty sensor can send incorrect data, which can impact the machine's overall operation.
- This code is usually associated with sensor issues, particularly sensors in the engine or control system. A faulty sensor can send incorrect data, which can impact the machine's overall operation.
- Check Battery Voltage
- For the 04-21 error code, the first step is to check the battery voltage. Use a multimeter to test the battery and ensure it's properly charged. If the battery voltage is too low, recharge or replace the battery. Also, check the battery terminals for any corrosion or loose connections.
- For the 04-21 error code, the first step is to check the battery voltage. Use a multimeter to test the battery and ensure it's properly charged. If the battery voltage is too low, recharge or replace the battery. Also, check the battery terminals for any corrosion or loose connections.
- Inspect the Cooling System
- For the 05-21 error code, inspect the coolant levels and ensure the radiator is not clogged. If the coolant is low, add the appropriate coolant. If the radiator is dirty or clogged, clean it to ensure proper airflow. Also, check the temperature sensor and cooling pump to make sure they are functioning properly.
- For the 05-21 error code, inspect the coolant levels and ensure the radiator is not clogged. If the coolant is low, add the appropriate coolant. If the radiator is dirty or clogged, clean it to ensure proper airflow. Also, check the temperature sensor and cooling pump to make sure they are functioning properly.
- Check Sensors
- For the 09-21 error code, use diagnostic tools to scan for any fault codes related to sensors. Check the sensor wiring for any loose connections or damage, and ensure the sensors are positioned correctly. If the sensors are faulty, they may need to be replaced.
- For the 09-21 error code, use diagnostic tools to scan for any fault codes related to sensors. Check the sensor wiring for any loose connections or damage, and ensure the sensors are positioned correctly. If the sensors are faulty, they may need to be replaced.
When the Bobcat S175 displays the 04-21, 05-21, and 09-21 error codes, it usually points to issues with the battery voltage, cooling system, or sensors. By checking the battery voltage, coolant levels, and sensors, you can address these error codes effectively.
Regular maintenance of the battery, cooling system, and sensor checks can help prevent these issues from recurring. If the problem persists, it's advisable to contact a professional technician for further diagnosis and repair.
