JCB B0302: High Flow Thumbwheel Voltage High Fault Condition

The HECU has detected a high voltage condition in the High Flow thumbwheel circuit. This indicates an abnormal voltage level that may affect the proper operation of the system.

1. 1

   The High Flow thumbwheel circuit

2. 2

   Connections related to the High Flow thumbwheel

3. 3

   Power supply to the High Flow thumbwheel

1. 1

   Inspect

   Inspect the High Flow thumbwheel circuit for any visible damage or loose connections.

2. 2

   Test

   Test the voltage at the High Flow thumbwheel to confirm the high voltage condition.

3. 3

   Check

   Check the power supply and wiring associated with the High Flow thumbwheel for faults.