CLAAS Id7828h / 7828h – HYD (A60) Hydraulic Module: The Hydraulic CAN bus component of the HYD module is faulty

Fault code Id7828h indicates a communication failure on the machine's Controller Area Network (CAN). Specifically, the Hydraulic CAN bus component of the HYD module is faulty.

• Axion 800
• Axion 810
• Axion 830
• Axion 840
• Axion 850
• Axion 920
• Axion 950
• Arion 410
• Arion 430
• Arion 510
• Arion 610
• Arion 620
• Arion 630
• Arion 640

1. 1

   Analyze all present error codes to identify potential line interrupts or power issues generating multiple codes.

2. 2

   Check the connectors and continuity of the harnesses linking the HYD (A60) module to the CAN bus network.

3. 3

   Check for any short-circuits or open circuits on the CAN bus lines.

4. 4

   Check the sources of energy to the HYD (A60) module, including fuses, power supply voltage, and ground connections.

5. 5

   Verify the component's operating conditions such as pressure, temperature, and mechanical seizing.

1. 1

   Inspect Wiring

   Visually inspect the wiring harness leading to the HYD (A60) module for chafing, corrosion, or backed-out pins.

2. 2

   Test Power/Ground

   Using a multimeter, verify that the HYD (A60) module is receiving proper 12V power and has a solid ground.

3. 3

   Test CAN Network

   Measure the resistance and voltage on the Hydraulic CAN bus lines to ensure the network is intact and not shorted to power or ground.

4. 4

   Replace Module

   If the wiring, power, ground, and CAN lines test good, the internal CAN transceiver of the HYD (A60) module has failed. The HYD (A60) module must be replaced.

5. 5

   Clear Codes

   After replacing the module or repairing the wiring, clear all error codes from the system.

6. 6

   Test Drive

   Operate the tractor to confirm the anomaly does not appear again.