John Deere 002818.31 – ICC: No Signal From Driver Seat Switch

The system is not receiving a signal from the driver's seat switch, also known as the operator presence switch. This condition prevents the proper operation of the machine, particularly safety-interlocked functions that require the operator to be seated, such as engaging the Power Take-Off (PTO) or operating certain hydraulic functions.

• 5045E
• 5050E
• 5055E
• 5058E
• 5060E
• 5065E
• 5075E
• 7930
• 7R Series
• 8R Series
• 9R Series
• LA115
• 4052R

1. 1

   Perform an Operator Presence System Check by starting the engine, engaging the PTO, and rising from the seat to see if the system disengages as expected.

2. 2

   Check for stored codes in the digital display diagnostic mode to confirm ICC 002818.31 is the active fault.

3. 3

   Inspect seat movement on its rails; ensure it is not seized and lubricate or adjust tension springs if necessary (the switch typically requires 20-30 lbs of downward pressure to activate).

4. 4

   Visually inspect the wiring harness and connector underneath or at the rear of the seat for frayed wires, damage, or loose connections.

5. 5

   Perform a continuity test on the switch using a multimeter to ensure it shows continuity when the plunger is depressed and an open circuit when released.

6. 6

   Perform a temporary jumper wire test at the harness connector to bypass the switch and see if machine functions are restored (diagnostic purposes only).

1. 1

   Prepare machine

   Park the machine on a level surface, lower all implements to the ground, shut off the engine, and engage the park brake.

2. 2

   Access the switch

   Lift or remove the seat cushion to gain access to the operator presence switch, which is typically located on the seat frame or base.

3. 3

   Disconnect wiring

   Carefully unplug the electrical connector from the faulty seat switch.

4. 4

   Remove faulty switch

   Remove the switch by pinching the retaining clips and sliding it out, or by removing the securing screws/fasteners depending on the model.

5. 5

   Install new switch

   Secure the new seat switch into the seat frame or base using the original mounting method.

6. 6

   Reconnect wiring

   Plug the wiring harness into the new switch, ensuring a secure electrical connection.

7. 7

   Reassemble seat

   Place the seat cushion back into its original position.

8. 8

   Test system

   Start the tractor and perform the operator presence system check to verify the new switch functions correctly and the fault code has cleared.