Description:

This diagnostic trouble code (DTC), SSU 001504.09, is triggered when the information from the seat switch is not accepted on the CAN BUS after four attempts. This indicates a problem in the vehicle CAN BUS communication with the operator presence switch.

Reaction:

When this error is detected, the equipment may not recognize the operator’s presence, potentially leading to operational and safety issues.

Recommendations:

Verify CAN BUS Communication:

• Inspect the CAN BUS wiring and connectors for any signs of damage, loose connections, or corrosion.
• Use diagnostic tools to check for continuity and proper voltage levels in the CAN BUS lines.

Check Operator Presence Switch:

• Ensure that the operator presence switch (seat switch) is functioning properly and transmitting signals correctly.

Update Software:

• Ensure that the software related to the operator presence detection system is up-to-date. Apply any available firmware updates to improve system performance and compatibility.

Replace Faulty Components:

• If the operator presence switch or related CAN BUS components are found to be defective, replace them with new, genuine parts.

Consult Technical Support:

• If the error persists after performing the above steps, consult technical support or the manufacturer for further assistance.

Note:

• Regular maintenance and inspection of the CAN BUS wiring and connected components can help prevent communication issues.
• Ensuring that the operator presence switch is functioning correctly is crucial for the safe operation of the equipment.