John Deere 1493 – E00 - Tailings Control Unit or Tailings Master Sensor: Tailings System Failure

This fault code is a general indicator of a problem within the combine's tailings monitoring system where the specific cause is not identified by the system's self-diagnostics. It often points to issues with the tailings sensors, which measure the amount of material being returned for reprocessing. Related sub-codes indicate calibration out of range high (E00 1493 15 3, often a dirty or failed sensor) or out of range low (E00 1493 17 3, often a missing elevator paddle or failed sensor).

• 9540
• 9560
• 9580
• 9640
• 9660
• 9680
• 9560 STS
• 9650 STS
• 9660 STS
• 9750 STS
• 9760 STS
• 9860 STS
• 9870 STS
• S550
• S560
• S650
• S660
• S670
• S680
• S690
• S760
• S770
• 9450
• 9470 STS
• 9550
• 9570 STS
• 9670
• 9670 STS
• 9770 STS
• 9780
• 9880 STS
• C670
• T550
• T560
• T660
• T670
• W540
• W550
• W650
• W660
• 4400
• 4420

1. 1

   Check Operator Display: On the VisionTrak or CommandCenter display, observe the tailings volume bar graph. If it consistently reads full when not harvesting or empty while harvesting, it points to a sensor issue.

2. 2

   Inspect for Obstructions: A cob or other debris can get stuck under the tailings auger, causing the slip clutch to engage and potentially triggering a fault.

3. 3

   Check Tailings Elevator Chain: An overly loose tailings elevator chain can skip cogs, which may lead to an intermittent warning.

4. 4

   Inspect Tailings Sensors: The tailings sensors are a common point of failure. They are Class 1 laser products and require caution during service. CAUTION: Turn the key switch OFF and unplug the tailings sensor before servicing. Do not look directly at the sensor beam.

1. 1

   Clean the tailings sensors

   Remove the tailings sensors and clean any dirt, dust, or material buildup from the lenses. If lenses are clean, remove them to check for dust underneath. Clean thoroughly and ensure the gasket provides a good seal upon reassembly.

2. 2

   Recalibrate the system

   Recalibrate the tailings system. This is necessary if the fault code indicates a calibration issue (1493 15 or 1493 17) or after cleaning the sensors for the general 1493 11 code.

3. 3

   Inspect mechanical components

   Check the tension of the tailings elevator chain and tighten if loose. Inspect the tailings auger for any blockages and clear them.

4. 4

   Test the system

   After cleaning and reinstallation, test the system. If the display continues to read full or empty, or if the fault code returns, the sensor itself may have failed.

5. 5

   Replace faulty components

   If diagnostics point to a failed sensor or other component, replace it with the appropriate OEM part. If an EEPROM failure is indicated (Code E00 630 11 2), the Master Tailings Sensor will likely need to be replaced.