John Deere 003353.09: Alternator Fault - Not Charging Main Control Module (CCU)

The alternator is not providing charge to the Main Control Module (CCU). This fault indicates a problem with the charging system related to the CCU.

1. 1

   Alternator output voltage

2. 2

   Connection between alternator and CCU

3. 3

   Main Control Module (CCU) functionality

1. 1

   Check alternator output voltage

   Verify that the alternator is producing the correct voltage as specified in the service manual.

2. 2

   Inspect connections

   Examine the wiring and connections between the alternator and the Main Control Module (CCU) for damage, corrosion, or looseness.

3. 3

   Test Main Control Module (CCU)

   Use diagnostic tools to test the functionality of the Main Control Module (CCU) and ensure it is receiving proper input from the alternator.