CLAAS 76A3h: Voltage of the external lifting controls signal non valid

The voltage of the external lifting controls signal is not valid, which results in the lifting function being inactive. This indicates a problem with the signal integrity or power supply to the external lifting controls.

1. 1

   Power supply to the external lifting controls

2. 2

   Wiring and connections of the external lifting controls

3. 3

   Signal output from the external lifting controls

1. 1

   Check the power supply

   Verify that the power supply to the external lifting controls is functioning correctly.

2. 2

   Inspect wiring and connections

   Examine the wiring and connections of the external lifting controls for any damage, looseness, or corrosion.

3. 3

   Test signal output

   Measure the signal output from the external lifting controls to ensure it is within the expected range.