John Deere ITC000168.03 – ITC: Control Unit Unswitched Supply Voltage High

The control unit is experiencing an unswitched supply voltage that is higher than normal, which has resulted in a system with restricted function. This issue may affect the proper operation of the system.

1. 1

   Battery voltage

2. 2

   Control unit power supply

3. 3

   Wiring to the control unit

1. 1

   Measure the battery voltage

   Verify that the battery voltage is within the specified range for the system.

2. 2

   Inspect the wiring to the control unit

   Check for any damage, loose connections, or short circuits in the wiring leading to the control unit.

3. 3

   Check the control unit power supply

   Ensure that the power supply to the control unit is functioning correctly and delivering the proper voltage.