Description:

This error code indicates that the Selective Control Unit (SCC) has detected that the switched supply voltage is below 9.0 V. This low voltage can be caused by various factors, such as battery issues, poor electrical connections, or alternator problems.

Reaction:

When this code is detected, the SCC will disable its functions, effectively turning them off to prevent further issues or damage to the system.

Recommendations:

Inspect and Test Battery:

• Check the battery voltage and state of charge. Ensure the battery terminals are clean and securely connected.
• If the battery is weak or faulty, recharge or replace it.

Check Electrical Connections:

• Inspect all electrical connections related to the SCC for corrosion, looseness, or damage.
• Clean and tighten any affected connections.

Examine Alternator and Charging System:

• Verify the alternator is functioning correctly and providing adequate voltage output.
• Inspect the alternator belt for wear and tension. Replace or adjust as necessary.

Verify Fuses and Relays:

• Check all relevant fuses and relays for the SCC circuit. Replace any blown fuses or faulty relays.

Monitor Voltage:

• Use a multimeter to monitor the voltage at the SCC. Ensure it stays above 9.0 V during operation.

Note:

• Low supply voltage can result from various issues beyond just battery or alternator problems. Consider other potential electrical faults or loads on the system.
• If the problem persists after addressing these recommendations, consult technical support for further diagnostic assistance.

By following these steps, you can effectively troubleshoot and resolve issues related to the SCC low voltage error, ensuring proper operation of the equipment.