John Deere 003598.04: Low 12 Volt Supply Voltage Detected

The system has detected that the 12 Volt Supply Voltage is low, which may affect the operation of the Main Control Module (OIC). This condition could lead to intermittent or improper functionality of the control system.

1. 1

   The 12 Volt Supply Voltage using a multimeter

2. 2

   Connections to the Main Control Module (OIC)

3. 3

   Battery condition and charging system

1. 1

   Verify the 12 Volt Supply Voltage

   Use a multimeter to measure the voltage at the power supply input to the Main Control Module (OIC).

2. 2

   Inspect connections

   Check all electrical connections to the Main Control Module (OIC) for looseness, corrosion, or damage.

3. 3

   Test battery and charging system

   Ensure the battery is fully charged and the charging system is functioning properly.