CLAAS Id76E9h / 76E9h (638) – SFA (A102): Short-circuit on the supply of the right-hand suspension position sensor

When this fault is triggered, the system defaults to a degraded mode: the front suspension becomes non-functional and is locked in its current position to prevent erratic movements.

• Axion 850
• Axion 920
• Axion 950
• Arion 500 series
• Arion 600 series
• Arion 510
• Arion 550
• Arion 610
• Arion 630
• Arion 640
• Ares 500 series
• Ares 600 series
• Ares 546
• Ares 556
• Ares 566
• Ares 616
• Ares 626
• Ares 636
• Ares 696

1. 1

   Check the connectors and the continuity of the harnesses linking the B234-1 sensor to the SFA (A102) module

2. 2

   Inspect the wiring specifically for a short-circuit to the supply voltage or an open circuit

3. 3

   Check the sources of energy at the sensor connector, including fuses, supply voltage, and ground connections

4. 4

   Check the sensor's resistance and verify its physical adjustment/mounting on the axle

1. 1

   Preparation

   Note that removing the sensor will require a new adjustment upon reinstallation. To properly re-install the sensor, all other axle parts must be assembled.

2. 2

   Removal

   Unscrew the sensor cover attachment bolts. Disconnect the electrical connector from the sensor. Unscrew the sensor support screws, then carefully remove the assembly.

3. 3

   Marking

   Mark the position of the ring holder bush. This is critical to correctly position the rubber ring in its housing during reassembly.

4. 4

   Installation

   Install the new sensor and bush, referring strictly to the alignment marks you made previously. Secure the support screws, reconnect the electrical connector, and reinstall the sensor cover.

5. 5

   Calibration

   Perform any required software calibration or adjustment for the new suspension position sensor via the CLAAS diagnostic tool to clear the code and restore suspension functionality.