John Deere 523824.2 – XSC: Steering Wheel Position Sensor Channel 2 / Encoder 2 — Duty Cycle High

The steering input device (SID) is reporting an abnormally high duty cycle on Channel 2. This indicates a malfunction in the sensor itself, a wiring issue (such as a short or open circuit), or a signal processing failure, which can compromise AutoTrac and manual steering inputs.

• 6110M
• 6120M
• 6130M
• 6145M
• 6155M
• 6175M
• 6195M
• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 8235R
• 8245R
• 8260R
• 8285R
• 8310R
• 8320R
• 8335R
• 8360R
• 8400R
• 7180
• 7280
• 7380
• 7480
• 7580
• 7780
• 7980
• 9570 STS
• 9670 STS
• 9770 STS
• 9870 STS

1. 1

   Inspect the wiring harness and connectors for Channel 2 of the Steering Wheel Position Sensor (B138/B69) for signs of damage, loose connections, or corrosion.

2. 2

   Verify that the power supply to Channel 2 is providing adequate current (typically not falling below 4 mA).

3. 3

   Use a diagnostic tool to check the voltage ratio between Channel 1 and Channel 2 to ensure signals are consistent and within the expected OEM range.

4. 4

   Ensure the physical alignment and mounting of the steering wheel position sensor are secure and correctly positioned.

5. 5

   Check if the SSU/XSC software is up to date, as firmware updates can resolve signal processing anomalies.

1. 1

   Disconnect Power

   Turn off the machine and disconnect the battery to ensure safety while working on the electrical system.

2. 2

   Clean and Re-seat Connectors

   Disconnect the Steering Wheel Position Sensor. Clean the pins with contact cleaner and apply dielectric grease. Reconnect and test the machine to see if the code clears.

3. 3

   Test the Harness

   If the code persists, use a multimeter to test the continuity of the wiring harness from the sensor back to the XSC/SSU module. Repair any broken or chafed wires.

4. 4

   Replace the Sensor

   If the wiring is intact and the sensor fails the duty cycle/voltage checks, remove the faulty Steering Wheel Position Sensor from the steering column and install a new OEM replacement.

5. 5

   Recalibrate and Clear Codes

   After installation, use John Deere Service ADVISOR (or a compatible diagnostic tool) to recalibrate the steering wheel position sensor. Clear the diagnostic trouble codes and test drive the machine to verify the repair.