Y035

Fendt Y035 – EMR2: Actuator Fault in Rotary Target Control Travel

Issue description

There is a discrepancy between the target position and the actual position of a specific actuator within the engine's control system. The fault is triggered when the deviation between the commanded position and the measured position of the actuator exceeds a predefined threshold, typically 10%. This indicates a problem with the actuator's ability to accurately achieve or report its position, which can lead to reduced engine performance, failure to start, or an emergency engine shutoff.

Applies to these machines

  • Farmer 400 Vario
  • Favorit 700 Vario
  • Favorit 900 Vario
  • 300 Vario
  • 400 Vario
  • 500 Vario
  • 700 Vario
  • 800 Vario
  • 900 Vario
  • 1000 Vario

Check the cause

  1. Power cycle the tractor by switching the ignition off and then on again to see if the error reappears, indicating a persistent hardware issue

  2. Verify the voltage supply to the EMR2 ECU; a low voltage supply (less than 10.5V) can cause erroneous fault codes

  3. Inspect the actuator's control rod to ensure it moves smoothly and is not binding or obstructed

  4. Check the wiring harness and connectors between the EMR2 ECU and the actuator for any damage, corrosion, or loose connections

  5. Use Fendt SERDIA diagnostic software to read fault memory, check actuator parameters, and perform further tests

Repair steps

  1. Disconnect battery

    Disconnect the tractor's battery to ensure safety before beginning the repair.

  2. Locate actuator

    Locate and access the EMR2 actuator on the engine.

  3. Disconnect connections

    Disconnect the electrical connector and any mechanical linkages attached to the actuator.

  4. Remove actuator

    Remove the faulty actuator from its mounting.

  5. Install new actuator

    Install the replacement actuator, ensuring all electrical connections and mechanical linkages are secure.

  6. Reconnect battery

    Reconnect the tractor's battery.

  7. Calibrate actuator

    Perform a calibration of the new actuator using Fendt's diagnostic software (SERDIA).

Parts you might need

(2)
  • Compatible with Fendt Vario 300, 400, 500, and 1000 series, as well as some Massey Ferguson Dyna VT models. Also referred to as a Fendt Emergency Unit.

  • EMR 2 actuatorF718202710080

    Associated with EMR 2 actuator repairs, though direct relation to the Y035 fault is not as clearly established.

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