Fendt 09.1.A5 – A050 basic control unit: Y070 - EHR cut-off valve, front

Incorrect valve code (SA/DA) for selecting EOL. The system has detected an invalid configuration regarding whether the valve is set as Single Acting (SA) or Double Acting (DA), which prevents the system from completing its End-of-Line (EOL) programming or calibration.

• 922 Vario COM III
• 924 Vario COM III
• 927 Vario COM III
• 930 Vario COM III
• 933 Vario COM III
• 936 Vario COM III
• Fendt 300 Vario
• Fendt 400 Vario
• Fendt 700 Vario
• Fendt 800 Vario
• Fendt 900 Vario

1. 1

   Verify the tractor's terminal settings for the front power lift to ensure the valve is correctly designated as SA (Single Acting) or DA (Double Acting) to match the physical hardware.

2. 2

   Check for concurrent EEPROM codes (such as 09.1.A2 or 09.1.A3) using a diagnostic tool, which indicate a physical memory failure inside the valve.

3. 3

   Inspect the wiring harness and connectors leading to the Y070 front cut-off valve for corrosion, moisture, or breaks that could disrupt CAN communication.

1. 1

   Connect diagnostic tool

   Connect the FENDIAS (Fendt diagnostic software) interface to the tractor's diagnostic port.

2. 2

   Navigate to module settings

   Navigate to the EHR (Electronic Hitch Relief) / Front Power Lift control module settings.

3. 3

   Correct valve code parameter

   Correct the valve code parameter. Set the Y070 valve configuration to the correct SA (Single Acting) or DA (Double Acting) status.

4. 4

   Initiate EOL programming

   Initiate the EOL (End of Line) programming sequence for the front power lift control valve.

5. 5

   Follow on-screen prompts

   Follow the on-screen prompts to allow the valve to find its neutral and reference positions.

6. 6

   Clear fault memory

   Clear the fault memory and cycle the tractor's ignition.

7. 7

   Test and replace if necessary

   Test the front power lift. If the EOL programming fails or the code immediately returns, the electronic control unit on the valve has failed and the valve assembly must be replaced.