Fendt 08.1.18 – ECU, EPC B: S072 - Quick lift switch failure

The system has detected that the quick lift switch is faulty or sending an implausible signal. As a direct consequence, the system triggers a 'Control locked' state, disabling the rear power lift functions for safety.

• 309 Vario COM III
• 310 Vario COM III
• 311 Vario COM III
• 312 Vario COM III
• Fendt 300 Vario
• Fendt 400 Vario
• Fendt 700 Vario
• Fendt 800 Vario
• Fendt 900 Vario

1. 1

   Move the Quick Lift switch fully through its range of motion to clear potential debris or sticking contacts

2. 2

   Cycle the ignition OFF and ON to attempt a system reset and clear the locked state

3. 3

   Consult the 'Electrohydraulic lifting gear control' circuit diagram and inspect the wiring harness and connector leading to the S072 switch on the console for corrosion, loose pins, or broken wires

1. 1

   Attempt Reset

   Perform the switch movement and ignition cycle reset mentioned in the diagnostic steps.

2. 2

   Access the Switch

   If the code remains active, power down the tractor and disassemble the necessary console trim to access the S072 Quick lift switch.

3. 3

   Electrical Testing

   Disconnect the switch and use a multimeter to test for continuity across its positions.

4. 4

   Replace Component

   If the switch is internally faulty (open circuit or shorted), remove the defective switch from the console and install the replacement part.

5. 5

   Clear Codes

   Reassemble the console, turn the ignition on, and navigate to the tractor's terminal to confirm, call up, and delete the fault code.

6. 6

   Functional Test

   Test the rear power lift to ensure the EHR system responds correctly and the control lock has been lifted.