CLAAS Id7656h / 7656h (455) – TR2 (A57-2): Calibration of the right position of the current steering angle.

The system has lost or failed to validate the calibration value for the right-hand mechanical stop of the steering angle sensor (B117). This often happens if the sensor was replaced, the battery was disconnected, or the sensor signal dropped below a valid threshold during operation.

• Axion 810
• Axion 820
• Axion 830
• Axion 840
• Axion 850
• Axion 910
• Axion 920
• Axion 930
• Axion 940
• Axion 950
• Arion 510
• Arion 520
• Arion 530
• Arion 540
• Arion 610
• Arion 620
• Arion 630
• Arion 640
• Arion 650
• Xerion 4000
• Xerion 4500
• Xerion 5000
• Lexion

1. 1

   Verify the voltage of the steering angle sensor (B117) is strictly between 0.5V and 4.5V (0V or 5V will block calibration)

2. 2

   Check the wiring harness and connectors between the steering angle sensor (B117) on the front axle and the TR2 module for continuity, short-circuits to ground, or open circuits

3. 3

   Ensure the sensor's mechanical linkage on the front axle is not bent, seized, or loose

1. 1

   Start the tractor

   Ensure the hydraulic steering system is fully functional.

2. 2

   Enter calibration menu

   Enter the normal operating mode or the steering calibration menu via the CLAAS Diagnostic System (CDS) / CEBIS terminal.

3. 3

   Calibrate the Left Position

   Turn the steering wheel fully to the left until it hits the mechanical stop. Validate this position by pressing the differential lock button.

4. 4

   Calibrate the Center Position

   Set the wheels perfectly straight (wheel-in-line position). Validate this position by pressing the differential lock button.

5. 5

   Calibrate the Right Position

   Turn the steering wheel fully to the right until it hits the mechanical stop. Validate this position by pressing the differential lock button to clear Id7656h.

6. 6

   Restart the vehicle

   Restart the vehicle to save the programming process.

7. 7

   Replace sensor if calibration fails

   If the calibration fails to save or the error persists immediately after validation, the B117 sensor has an internal dead spot and must be replaced.