JCB B0303: High Flow Thumbwheel Voltage Low Fault Condition

The HECU has detected a low voltage condition in the High Flow thumbwheel. This may indicate an issue with the electrical supply or the component itself.

1. 1

   The wiring and connections related to the High Flow thumbwheel

2. 2

   The power supply to the High Flow thumbwheel

3. 3

   The High Flow thumbwheel itself for damage or malfunction

1. 1

   Inspect

   Inspect the wiring and connections for the High Flow thumbwheel for any signs of damage, corrosion, or loose connections.

2. 2

   Test

   Test the power supply to the High Flow thumbwheel to ensure it is receiving the correct voltage.

3. 3

   Replace

   If the High Flow thumbwheel is found to be faulty, replace it with a compatible component.