John Deere 1231: Message Not Arriving on Time or Missing on Local CAN Bus Between Control Unit RCU and Right Power Module

The control unit RCU is not receiving messages on time or is missing messages on the local CAN Bus from the right power module. This indicates a communication issue between the two components.

1. 1

   The connection between the control unit RCU and the right power module

2. 2

   The integrity of the local CAN Bus wiring

3. 3

   The functionality of the control unit RCU

4. 4

   The functionality of the right power module

1. 1

   Inspect

   Inspect the connection between the control unit RCU and the right power module for loose, damaged, or corroded terminals.

2. 2

   Test

   Test the integrity of the local CAN Bus wiring for continuity and proper insulation.

3. 3

   Verify

   Verify the functionality of the control unit RCU and the right power module using diagnostic tools.