JCB P0651: 5V Power Supply-5 Voltage Fault

The system has detected a fault related to the 5V power supply, indicating that the voltage level is not within the expected range. This may affect the proper operation of the connected components.

1. 1

   The 5V power supply circuit

2. 2

   Connections to the 5V power supply

3. 3

   Power supply output voltage

1. 1

   Verify the power supply output voltage

   Use a multimeter to measure the voltage at the 5V power supply output. Ensure it matches the expected value as specified in the service manual.

2. 2

   Inspect the 5V power supply circuit

   Check for any visible damage, loose connections, or corrosion in the wiring and connectors associated with the 5V power supply.

3. 3

   Test the 5V power supply under load

   If available, test the 5V power supply with a known good load to determine if it can maintain the correct voltage under operational conditions.