John Deere 1533 – RCU: Feeder House Tilt Sensor Not Calibrated

The calibration procedure for the feeder house lateral tilt sensor (also known as the angle sensor) has not been performed or has failed. This sensor is critical for the proper operation of automatic header tilt functions such as Contour Master. When this code is active, the system cannot accurately read the tilt angle of the feeder house, resulting in improper header positioning relative to the ground. The fault can also be triggered if the sensor's voltage readings fall outside the expected range during operation or calibration.

• S550
• S660
• S670
• S680
• S690
• 9470 STS
• 9570 STS
• 9670 STS
• 9770 STS
• 9870 STS
• 9540 WTS
• 9560 WTS
• 9580 WTS
• 9640 WTS
• 9660 WTS
• 9680 WTS
• T550
• T560
• T660
• T670
• W540
• W550
• W650
• W660

1. 1

   Verify the combine is parked on a hard, level surface before starting any calibration procedures

2. 2

   Visually inspect the feeder house tilt sensor, its linkage, and wiring harness for physical damage, looseness, or material buildup

3. 3

   Ensure the sensor wiring harness is securely connected

4. 4

   Check for other active fault codes related to the tilt sensor, such as out-of-range voltage warnings (greater than 4.5V or less than 0.5V)

5. 5

   Access diagnostic addresses on the combine's display to view live voltage readings from the tilt sensor (expected operating range is 0.5 to 4.5 volts)

1. 1

   Prepare for calibration

   Start the combine and fully raise the feeder house.

2. 2

   Enter calibration mode

   Access the calibration menu through the combine's display (CommandCenter or triple display tachometer) by pressing a calibration or diagnostic switch, then navigate to the feeder house tilt ('tiLt') or fore/aft tilt calibration option.

3. 3

   Establish left and right limits

   Follow the on-screen prompts. Use the lateral tilt switch to move the feeder house fully to the left and hold it to store the left limit. Repeat this process for the right side.

4. 4

   Establish center position

   Use the tilt switch to visually level the feeder house. Utilize the manual indicator on the feeder house to help find the approximate level position.

5. 5

   Save calibration

   Press the appropriate switch to save the calibration values. An 'EOC' (End of Calibration) or similar message will appear if successful. If calibration fails, proceed to sensor replacement.

6. 6

   Prepare for sensor replacement

   If calibration repeatedly fails, park the machine safely, lower all equipment, shut off the engine, and disconnect the battery. Remove the left-hand feeder house access shields.

7. 7

   Replace tilt sensor

   Disconnect the electrical connector from the sensor. Unbolt the sensor and its associated bracket or linkage. Install the new sensor and reconnect the linkage and electrical connector.

8. 8

   Reassemble and recalibrate

   Reinstall any removed shields. You must perform the Feeder House Tilt Calibration procedure (Steps 1-5) again, as it is mandatory after replacing the sensor.