708.1

John Deere 708.1 – XMC: Steering Wheel Position Sensor Channel 1, Fault

Issue description

Indicates a failure or loss of signal from Channel 1 of the Steering Input Device (SID), which houses the sensors that detect the steering wheel's angle and rotary position. When this error is detected, the control software will typically limit or disable automatic steering functions (like AutoTrac) to ensure the system remains in a safe state.

Applies to these machines

  • 6110M
  • 6120M
  • 6130M
  • 6145M
  • 6155M
  • 6175M
  • 6195M
  • 6110R
  • 6120R
  • 6130R
  • 6145R
  • 6155R
  • 6175R
  • 6195R
  • 6215R
  • 8235R
  • 8245R
  • 8260R
  • 8285R
  • 8310R
  • 8335R
  • 8360R
  • 8400R
  • 8320RT
  • 8345RT
  • 9470RT
  • 9520RT
  • 9570RT
  • 9420RX
  • 9620RX
  • 6145J
  • 6165J
  • 6180J
  • 6205J
  • CH570
  • CH670
  • 3520

Check the cause

  1. Perform a full key-cycle/reboot of the system to rule out a temporary internal software self-test failure.

  2. Remove the steering column covers to access the Steering Input Device (SID).

  3. Interchange (swap) the wiring connectors for Sensor 1 and Sensor 2 at the SID.

  4. Clear the codes and turn the steering wheel. If the same 000708.10 code (Channel 1) returns, there is a wiring harness issue (open, short, or high resistance) between the SID and the XMC controller.

  5. If the fault code shifts to the other channel (e.g., Channel 2 signal mismatch/fault), the Steering Input Device itself has internally failed and must be replaced.

Repair steps

  1. Access the Sensor

    Disconnect battery power. Remove the plastic cowl/covers surrounding the steering wheel column to expose the Steering Input Device (SID) and its wiring.

  2. Inspect Wiring

    Check the harness leading to the SID for chafing, pinched wires, or loose connector pins. Repair any damaged wiring.

  3. Replace the Sensor

    If diagnosed faulty, unplug the electrical connectors from the SID. Unbolt the sensor assembly from the steering column shaft and remove it.

  4. Install New Part

    Slide the new Steering Wheel Position Sensor onto the column, secure the mounting hardware, and plug in the connectors.

  5. Reassemble and Calibrate

    Reinstall the steering column covers. Reconnect the battery. You will likely need to use John Deere Service Advisor to clear the stored diagnostic trouble codes (DTCs) and perform a steering wheel position sensor calibration so the XMC module learns the new sensor's center position.

Parts you might need

(6)
  • Steering Wheel Position Sensor / Steering Input Device (SID)

    RE257113

    Common on 8R series wheeled tractors

  • Steering Wheel Position Sensor / Steering Input Device (SID)

    RE341251

    Rotary position sensor, common on 8RT/9RT track tractors

  • Steering Wheel Position Sensor / Steering Input Device (SID)

    RE69108

    Common on older T-series tractors and harvesters

  • Steering Input Device and Steering Module Brake assembly

    RE557787

    For newer 7R/8R/9R/9RX models

  • Steering Wheel Position Sensor

    RE305619

    Generic Steering Wheel Position Sensor

  • Steering Input Device Wiring Harness

    AL207316

    Example harness part number; exact harness depends on chassis

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