CLAAS A0A9h: Fault Code A0A9h - 4 Valve Command Impossibility

The system has detected that the command for valve 4 is impossible to execute. Valve 4 is returning to neutral, which may indicate a malfunction in the operation of this component.

1. 1

   Check the operation of valve 4

2. 2

   Verify the command signal sent to valve 4

3. 3

   Inspect the connection or wiring related to valve 4

1. 1

   Clear the error

   Follow the procedure to clear the fault code from the system.

2. 2

   Monitor the system

   Observe if the error reappears after clearing it.

3. 3

   Replace the 4 valve

   If the error reappears, replace the 4 valve as indicated in the source.