CLAAS 75D6h – TR1: Clutch Pedal and BOC Inconsistency

The TR1 Transmission Control Module has detected a logical inconsistency between the signal from the clutch pedal position sensor and the status of the end-of-travel (BOC) switch. The inputs from these two components do not match expected values, indicating that one of the sensors is reporting an incorrect pedal state (e.g., the position sensor reporting a fully released pedal while the BOC switch indicates it is depressed).

• Arion 640-510 series
• Arion 640
• Arion 630
• Arion 620
• Arion 420
• Axion

1. 1

   Inspect the clutch pedal mechanism to ensure it is not obstructed and moves freely without mechanical binding.

2. 2

   Visually inspect the wiring and connectors for the clutch pedal position sensor (R73) and the BOC switch for signs of damage, corrosion, or loose connections.

3. 3

   Verify that the sensor and switch are receiving the correct voltage and have a solid ground connection.

4. 4

   Check for short circuits or open circuits in the harnesses connecting these components to the TR1 module.

5. 5

   Test the clutch pedal position potentiometer and BOC switch for proper operation.

1. 1

   Isolate the faulty component

   Use a multimeter to test the resistance and signal output of the clutch pedal position sensor (R73) and the continuity of the BOC switch to determine which component is failing.

2. 2

   Replace or adjust components

   If the clutch pedal position sensor is faulty, replace it (typically located near the clutch pedal pivot point). If the BOC switch is faulty, replace or adjust it as necessary.

3. 3

   Clear fault codes

   Use a diagnostic tool to clear the 75D6h fault code from the TR1 module's memory after repairs are made.

4. 4

   Perform calibration

   Recalibrate the new sensor or clutch system if required. Switch the ignition off for 30 seconds to allow the new parameters to be saved.

5. 5

   Test operation

   Operate the tractor, paying close attention to clutch engagement and shifting to ensure the problem is resolved and no new codes appear.