CLAAS 77A3h – Claas Hyd A60 Claas Hydraulic Module: Fault in electrodistributor 1 module (Code 77A3h)

The instruction message from electrodistributor 1 is not in the correct format. This is caused by the electrodistributor 1 returning to neutral. The issue may be related to the Hydraulic CAN bus network, the hydraulic module HYD (A60), or the electrodistributor module (A105-1).

1. 1

   The Hydraulic CAN bus network

2. 2

   The hydraulic module HYD (A60)

3. 3

   The electrodistributor module (A105-1)

1. 1

   Inspect

   Inspect the Hydraulic CAN bus network for any physical damage or loose connections.

2. 2

   Verify

   Verify the functionality of the hydraulic module HYD (A60) using the appropriate diagnostic tools.

3. 3

   Test

   Test the electrodistributor module (A105-1) to ensure it is operating correctly and not returning to neutral unexpectedly.