CLAAS 7F04h: No Communication from SCU Module

The system has not received a message from the SCU (A131) module for a period exceeding 5 seconds. This indicates a loss of communication between the system and the SCU (A131) module.

1. 1

   The connection to the SCU (A131) module

2. 2

   The power supply to the SCU (A131) module

3. 3

   The wiring between the SCU (A131) module and the controller

1. 1

   Inspect

   Inspect the connection to the SCU (A131) module for looseness or damage.

2. 2

   Check

   Check the power supply to the SCU (A131) module to ensure it is receiving the correct voltage.

3. 3

   Test

   Test the wiring between the SCU (A131) module and the controller for continuity and proper insulation.