John Deere 000158.12: Engine ECU Has An Internal Issue

The Engine ECU has an internal issue that prevents it from powering down correctly. This may be related to the battery or ignition supplies to the module.

1. 1

   Battery voltage and condition

2. 2

   Ignition supply to the module

3. 3

   Connections to the Engine ECU

1. 1

   Check battery voltage

   Verify that the battery is fully charged and providing the correct voltage to the system.

2. 2

   Inspect ignition supply

   Ensure that the ignition supply to the module is stable and free from interruptions.

3. 3

   Check connections

   Inspect all electrical connections to the Engine ECU for looseness, corrosion, or damage.