New Holland TRANS 2873 – TRANS: Software is out of the calibration mode and the park brake request is still active.

If this fault is detected there is a bug in the software. The system fails to drop the park brake request after a calibration procedure has finished.

• New Holland T8 Series (e.g., T8.275, T8.300, T8.330, T8.360, T8.390, T8.410, T8.435)
• New Holland T9 Series

1. 1

   Connect the CNH Electronic Service Tool (EST) to the machine's diagnostic port

2. 2

   Read all active and stored fault codes in the TRANS module to confirm 2873 is present

3. 3

   Check the current software revision level of the Transmission Controller

4. 4

   Verify the physical status of the park brake to ensure it is not mechanically stuck or being commanded on by a faulty switch

1. 1

   Connect diagnostic laptop

   Connect the CNH EST diagnostic laptop to the tractor.

2. 2

   Navigate to TRANS module

   Navigate to the Transmission Controller (TRANS) module.

3. 3

   Download software payload

   Access the CNH eTIM (Electronic Technical Information Manual) system to download the latest software payload for the transmission controller.

4. 4

   Reflash transmission controller

   Reflash/update the transmission controller with the latest software version to patch the bug.

5. 5

   Clear fault codes

   Once the flash is complete, clear all inactive fault codes.

6. 6

   Perform calibration

   Perform a complete transmission and park brake calibration procedure using the EST or the tractor's in-cab display to ensure the new software initializes correctly and the park brake request clears.

7. 7

   Test machine

   Cycle the key and test the machine to verify the fault code does not return.