CLAAS Id77B9h / 77B9h (14) – HYD (A60) - Hydraulic Module: Valve 2 Configuration Message Format Error

The 'Configuration' message from valve 2 is not in the right format (or is not received correctly over the CAN network). As a safety measure, electrodistributor 2 (Valve 2) automatically returns to the neutral position.

• Axion 800
• Axion 810
• Axion 850
• Arion 510-640
• Arion 410-430

1. 1

   Check the connectors and continuity of the harnesses linking the hydraulic module to the electrodistributor

2. 2

   Check for any short-circuits (to ground or 12V) or open circuits on the Hydraulic CAN bus

3. 3

   Check the sources of energy (fuses, power supply voltage, and ground connections) for the electrodistributor module (A105-2)

4. 4

   Check the hydraulic module HYD (A60) and the electrodistributor module (A105-2) for physical damage, mechanical seizing, or extreme operating conditions (pressure/temperature)

5. 5

   Check the compatibility of the program versions, settings, and calibration of the valve

1. 1

   Analyze Codes

   Note all error codes present on the tractor. Analyze the interaction between them, as a primary CAN bus voltage error might be generating this specific configuration error.

2. 2

   Inspect Harness

   Locate the electrodistributor module (A105-2) on the hydraulic valve block. Disconnect the harness and inspect the pins for corrosion, moisture, or pushed-back terminals.

3. 3

   Test CAN Communication

   Using a multimeter or oscilloscope, verify the CAN High and CAN Low signals at the valve connector to ensure the HYD (A60) module is successfully broadcasting to the valve.

4. 4

   Verify Power

   Ensure the valve is receiving proper 12V supply and has a clean ground.

5. 5

   Recalibrate / Update

   If wiring and power are intact, attempt to recalibrate the hydraulic valves via the CEBIS terminal or CLAAS diagnostic tool. Ensure the software configuration matches the installed valve.

6. 6

   Replace Component

   If the configuration message remains corrupted and wiring is verified good, the internal logic of the electrodistributor module (A105-2) has failed and the valve must be replaced.

7. 7

   Clear and Test

   Clear all error codes from the HYD module memory, then operate the tractor's hydraulics to ensure the anomaly does not return.