Fendt 5.1.63 – A002 ECU (ECU, enhanced control): Y013 "Lower" suspension solenoid valve 12V supply or actuation fault

The system has detected a 12V supply fault or 12V actuation fault at the Y013 "Lower" suspension solenoid valve. The tractor will disable further suspension functionality, and the front axle suspension will remain locked in its last position.

• 411 Vario COM III
• 412 Vario COM III
• 413 Vario COM III
• 414 Vario COM III
• 415 Vario COM III
• 712 Vario COM III
• 714 Vario COM III
• 716 Vario COM III
• 718 Vario COM III
• 818 Vario COM III
• 820 Vario COM III
• Fendt 300 Vario (COM III)
• Fendt Farmer 400 / 400 Vario (COM III)
• Fendt Favorit 700 / 700 Vario (COM III)
• Fendt 800 Vario (COM III)
• Fendt Favorit 900 / 900 Vario (COM III)

1. 1

   Check the wiring harness and connector at the Y013 solenoid for breaks, corrosion, or short circuits.

2. 2

   Verify the fuses supplying the A002 Enhanced Control ECU and the suspension valve block.

3. 3

   Visually inspect the Y013 coil and test its resistance with a multimeter to check for an open or shorted internal circuit.

4. 4

   Check if the valve cartridge is physically blocked.

1. 1

   Clear the Area

   Ensure no personnel are under or near the tractor chassis, as the body may drop during depressurization.

2. 2

   Manual Depressurization

   Release the pressure manually before opening any lines or removing the valve. Turn the manual thumb screw on the Y013 valve to relieve the load pressure (the tractor body may lower). Turn the thumb screw on the Y014 (Raise suspension solenoid valve) to relieve the rebound accumulator. (Alternatively, open the manual lock valves AVF1/AVF2 if equipped).

3. 3

   Remove the Valve

   Once the system is fully depressurized, unscrew and remove the Y013 solenoid valve cartridge and coil.

4. 4

   Clean or Replace

   If the valve is merely blocked, blow it through with compressed air. If the coil has failed electrically (causing the 12V fault), replace the entire Y013 solenoid valve assembly.

5. 5

   Reassembly

   Install the new valve, torque to OEM specifications, and bleed the hydraulic system at the designated bleed points (AV1/AV2) as outlined in the workshop manual.