New Holland 3991: Engine ECU Relay Output Power Short Circuit Red

The system has detected a short circuit in the power output of the Engine ECU Relay. This condition may prevent the Engine ECU from receiving proper power, leading to operational issues.

1. 1

   The Engine ECU Relay

2. 2

   The wiring connected to the Engine ECU Relay

3. 3

   The power supply circuit for the Engine ECU Relay

1. 1

   Inspect

   Inspect the Engine ECU Relay for visible damage or signs of overheating.

2. 2

   Test

   Test the wiring connected to the Engine ECU Relay for continuity and proper insulation.

3. 3

   Check

   Check the power supply circuit for the Engine ECU Relay to ensure it is providing the correct voltage.