CLAAS Id75FCh / 75FCh (361) – TR1 (A57-1) / Auto 5: Paddle in forward gear (or reverse) and paddle in neutral at the same time.

The system is simultaneously receiving a signal that the tractor is in a directional gear (forward or reverse) and a signal that it is in neutral, indicating an inconsistent or conflicting electrical signal coming from the reverser lever (Revershift lever).

• CLAAS Axion 800 Series
• Axion 810
• Axion 850
• CLAAS Arion 600 Series
• Arion 510
• Arion 640
• CLAAS Arion 400 Series
• Arion 410
• Arion 420
• Arion 430
• CLAAS Ares Series
• Ares 657
• Ares 697

1. 1

   Verify the physical and electrical operation of the reverser lever (S171).

2. 2

   Inspect the wiring harness connecting the reverser lever to the Auto 5 module for open circuits or short-circuits to 12V (especially on terminal pins 19 or 30).

3. 3

   Test the Auto 5 transmission control module using the official CLAAS diagnostic tool to rule out internal failure.

1. 1

   Inspect the Reverser Lever (S171)

   Access the reverser lever on the steering column. Check the component's resistance and adjustment.

2. 2

   Test Voltages

   With the master switch on, test the inputs at the TR1 (A57-1) connector. The forward signal should read 12V when in forward and 0V in other positions. The neutral signal should read 12V when in neutral/raised and 0V otherwise.

3. 3

   Repair Wiring

   If multiple 12V signals are being sent simultaneously due to a wire chafe or short circuit, repair the damaged harness.

4. 4

   Replace the Lever

   If the wiring is intact but the switch itself is internally shorted (sending both neutral and forward/reverse signals), replace the S171 reverser lever.

5. 5

   Test/Replace the Auto 5 Module

   If the lever and wiring test perfectly, connect the Auto 5 module to CLAAS diagnostic tool n° 60 05 033 249. If the module fails the diagnostic test, replace the Auto 5 module.

6. 6

   Reset

   Perform an 'ISC' reset to clear the audio alarm and restore normal transmission operation.