CLAAS 769Dh – Claas Tr3 A57 3 Transmission Module: Short-circuit at the 12V of the rear PTO brake contact

A short-circuit has been detected at the 12V of the rear PTO brake contact. This is causing the rear PTO brake to be inactive. The issue may be due to a fault in the harness of the contact or the contact itself.

1. 1

   Possible short-circuit at the 12V in the harness of the contact (S173)

2. 2

   The rear PTO brake contact (S173)

1. 1

   Inspect

   Check the harness of the contact (S173) for a possible short-circuit at the 12V.

2. 2

   Inspect

   Check the rear PTO brake contact (S173) for damage or malfunction.

3. 3

   Test

   Use tool n° 60 05 033 249 to test the “Auto 5” module and replace it if required.