CLAAS 7699h – Claas Tr3 A57 3 Transmission Module: Automatic Hand Brake Wear Sensor Blocked in Active Mode

The automatic hand brake wear sensor is blocked in active mode, and the system is no longer receiving automatic hand brake wear information. This may affect the proper operation of the hand brake system.

1. 1

   Possible short-circuit on the sensor harness (Z157)

2. 2

   The automatic hand brake wear sensor (Z157)

1. 1

   Inspect

   Check the sensor harness (Z157) for possible short-circuits.

2. 2

   Test

   Test the automatic hand brake wear sensor (Z157) for proper functionality.

3. 3

   Replace

   If the sensor is faulty, replace it using the “Auto 5” module with tool n° 60 05 033 249.