CLAAS 754Dh: Voltage of the signal for function F4 is too high

The voltage of the signal associated with the function F4 is higher than expected. This has caused the F4 function to become inactive.

1. 1

   The signal wiring for function F4

2. 2

   The voltage levels at the signal input for function F4

3. 3

   The component or circuit responsible for generating the signal for function F4

1. 1

   Check the signal wiring for function F4

   Inspect the wiring for any damage, loose connections, or short circuits that could cause an abnormal voltage reading.

2. 2

   Measure the voltage at the signal input for function F4

   Use a multimeter to verify the voltage level at the input point for function F4 and compare it to the expected range.

3. 3

   Inspect the component or circuit responsible for the signal for function F4

   Identify and examine the component or circuit that generates or controls the signal for function F4 for any faults.