Description:

This error code indicates that the Selective Control Valve VI (SV VI) is not returning to the NEUTRAL position when commanded. The NEUTRAL position is important for ensuring that the hydraulic system is not pressurized when not in use.

Reaction:

When this error code is detected, the system will log the fault and may display a warning on the operator’s console. The failure to return to the NEUTRAL position can lead to unintended hydraulic pressure and potential safety issues.

Recommendations:

Inspect Control Valve:

• Check the SV VI for mechanical obstructions or damage that could prevent it from reaching the NEUTRAL position.
• Ensure the valve spool moves freely without resistance.

Check Control Signals:

• Verify that the control signals sent to the SV VI are correct and consistent.
• Inspect the wiring and connectors for signs of damage, corrosion, or loose connections.

Calibrate Control System:

• Perform a calibration of the control system to ensure accurate positioning of the valve spool.

Update Software:

• Ensure that the control unit software is up-to-date with the latest versions provided by John Deere.

Consult Technical Support:

• If the issue persists after performing the above steps, consult John Deere technical support for further assistance.

Monitor System:

• After performing corrective actions, monitor the system to ensure the fault does not reoccur.

Note:

Regular maintenance and inspections can help prevent such issues. Ensure that the hydraulic system is kept clean and free of contaminants that could cause mechanical binding.