John Deere 000158.01: Main Control Module Has Noted A Low Module Switched 12 Volt Supply Voltage

The Main Control Module has detected a low voltage level in the switched 12-volt supply. This may affect the proper operation of the module and related systems.

1. 1

   The power supply to the Main Control Module

2. 2

   Connections and wiring related to the switched 12-volt supply

3. 3

   The voltage level at the Main Control Module

1. 1

   Verify the voltage level at the Main Control Module

   Use a multimeter to measure the voltage at the Main Control Module's power input.

2. 2

   Inspect the wiring and connections

   Check for loose, damaged, or corroded connections in the circuit supplying the switched 12-volt power.

3. 3

   Check the power source

   Ensure that the power source providing the switched 12-volt supply is functioning correctly.