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

A short-circuit has been detected at the 12V of the automatic rear PTO engaging contact. This is causing the rear PTO automation to be inactive. The issue may be related to the harness of the contact or the rear PTO brake contact.

1. 1

   Possible short-circuit at the 12V in the harness of the contact (S172)

2. 2

   The rear PTO brake contact (S172)

1. 1

   Inspect

   Check the harness of the contact (S172) for a possible short-circuit at the 12V.

2. 2

   Inspect

   Check the rear PTO brake contact (S172) for any issues.

3. 3

   Test

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