John Deere 003597.04: Low 12 Volt Supply Voltage to Main Control Module

The system has detected that the 12 Volt Supply Voltage to the Main Control Module is below the expected level. This may affect the proper operation of the Main Control Module.

1. 1

   Power supply connections to the Main Control Module

2. 2

   Battery voltage output

3. 3

   Wiring between the power source and the Main Control Module

1. 1

   Verify battery voltage

   Check the voltage at the battery to ensure it is within the specified range.

2. 2

   Inspect wiring and connections

   Examine the wiring and connections between the power source and the Main Control Module for damage or looseness.

3. 3

   Test the power supply circuit

   Use a multimeter to test the voltage at the input of the Main Control Module to identify any voltage drop.