001807.16

John Deere 001807.16 – XSC: Steering Wheel Position Sensor 1 Frequency High

Issue description

The Steering Module (XSC) has detected an abnormality in the signal from the primary steering wheel position sensor. Specifically, the .16 Failure Mode Identifier (FMI) indicates that the signal frequency is valid but above the normal operational range. This points to a problem with the electrical signal being received or transmitted by the sensor as the steering wheel is turned.

Applies to these machines

  • 6145J
  • 6165J
  • 6180J
  • 6205J
  • 6110M
  • 6120M
  • 6130M
  • 6145M
  • 6155M
  • 6175M
  • 6195M
  • 7R 210
  • 7R 230
  • 7R 250
  • 7R 270
  • 7R 290
  • 7R 310
  • 7R 330
  • 7R 350
  • 8120
  • 8130
  • 8220
  • 8225R
  • 8230
  • 8235R
  • 8245R
  • 8260R
  • 8270R
  • 8285R
  • 8295R
  • 8310R
  • 8320
  • 8320R
  • 8330
  • 8335R
  • 8345R
  • 8R 230
  • 8R 250
  • 8R 280
  • 8R 310
  • 8R 340
  • 8R 370
  • 8R 410
  • 9330
  • 9430
  • 9530
  • 9630
  • 8100T-8430T
  • 8295RT-8360RT
  • 9300T-9630T

Check the cause

  1. Cycle the key switch off and on to see if the code clears

  2. Check the diagnostic display for other active fault codes, particularly CAN bus communication errors that could trigger this code

  3. Inspect the fuse related to the steering control unit (often listed as F23 depending on the model)

  4. Visually inspect the wiring harness and connectors at the bottom of the steering column for damage, corrosion, or loose connections

  5. If the steering column uses redundant sensors, swap the connectors to see if the fault code changes, which helps isolate a faulty sensor

  6. Perform a load test on the wiring harness between the control unit and the sensor to check for voltage drops caused by high resistance

  7. Inspect front axle ball joints and steering components for excessive mechanical play that could cause uncommanded wheel movement

Repair steps

  1. Access the sensor

    Locate the steering wheel position sensor at the base of the steering column, typically accessible from the right side of the cab.

  2. Disconnect and clean

    Disconnect the electrical connectors to the sensor. Inspect for corrosion or dirt and clean with an appropriate electrical contact cleaner.

  3. Replace the sensor

    If diagnostic checks confirm a faulty sensor, remove and replace the rotary position sensor on the steering column.

  4. Center the new sensor (if required)

    For specific assemblies (like RE69108), connect the new sensor to the harness, access the SSU controller address via the diagnostic display, and rotate the sensor shaft until the specified voltage (e.g., 2.5 volts) is achieved before mounting.

  5. Calibrate the steering system

    Warm the hydraulic oil to operating temperature, navigate to the AutoTrac or steering system calibration menu on the CommandCenter display, and follow on-screen prompts to turn the steering wheel fully left and right to set the end stops.

Parts you might need

(7)

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