Fendt 1E.1.90 – Engine Control Unit (ECU) / EDC7: Y094 - Actuator unit, AGR (exhaust gas recirculation)

Short circuit to battery, short to ground, cable break, or short circuit in the actuator's electrical circuit, resulting in a forced reduction in engine power.

• 309 Vario COM III
• 310 Vario COM III
• 311 Vario COM III
• 312 Vario COM III
• 922 Vario COM III
• 924 Vario COM III
• 927 Vario COM III
• 930 Vario COM III
• 933 Vario COM III
• 936 Vario COM III
• 207 Vario
• 208 Vario
• 209 Vario
• 210 Vario
• 211 Vario
• 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

1. 1

   Check the wiring harness and connectors leading to the Y094 actuator (located on the left side of the engine) for physical breaks, chafing (short to ground), or melted wires (short to battery).

2. 2

   Inspect the mechanical linkage connecting the actuator to the exhaust flap to ensure it is not seized, disconnected, or binding.

3. 3

   Connect the Deutz SERDIA diagnostic program and perform a function test to manually actuate the Y094 EGR actuator to see if it responds.

1. 1

   Disconnect power

   Turn off the tractor and disconnect the battery power.

2. 2

   Locate actuator

   Locate the Y094 EGR actuator on the left side of the engine.

3. 3

   Remove faulty actuator

   Disconnect the electrical harness and unbolt the faulty actuator.

4. 4

   Install new actuator

   Install the new Y094 servomotor onto the mounting bracket.

5. 5

   Attach mechanical linkage

   CRITICAL STEP: You must attach the mechanical linkage to the Y094 EGR actuator before switching the ignition on.

6. 6

   Calibrate actuator

   Switch the ignition on. The A051 ECU will command the Y094 EGR actuator to travel to the end stops of the exhaust flap to calibrate its position. OEM Warning: If the linkage is NOT attached when the ignition is switched on, the actuator will run past its intended end stops during the calibration process, which will result in immediate, irreversible damage to the new component.

7. 7

   Clear fault codes

   Clear the fault codes (1E.1.90 / FC:0045-0048) using the SERDIA diagnostic tool.