Case IH DCU19741: Main Relay Opens Too Early or Too Late

The main relay opens at an incorrect time, either too early or too late, which may affect the proper operation of the electrical system. This issue is indicated by the presence of the fault code DCU19741.

1. 1

   The main relay

2. 2

   The circuit associated with the main relay

3. 3

   The connection and wiring of the main relay

1. 1

   Inspect

   Inspect the main relay for signs of damage, wear, or improper seating.

2. 2

   Test

   Test the main relay for proper operation using a multimeter or diagnostic tool.

3. 3

   Check

   Check the wiring and connections related to the main relay for looseness, corrosion, or damage.