John Deere 523776.19 – SCC: CAN BUS Message Fault, Rear Chassis (SCC) / Single Lever Control (or Multi-Function Lever) Transport Lock Switch Fault Message Received

This code indicates a failure or communication error regarding the Transport Lock Switch on the Single Lever Control (Multi-Function Lever). The system detects that the switch is sending conflicting outputs, has a circuit fault (short/open), or the CAN bus message from the switch to the controller is missing/faulty. When this code is detected, the controller will disable the functions related to the Single Lever Control (turning off the Selective Control Valves / SCVs) to prevent unintended hydraulic movement.

• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 8130
• 8230
• 8330
• 8430
• 8530
• 8225R
• 8245R
• 8270R
• 8295R
• 8320R
• 8335R
• 8345R
• 8370R
• 8400R
• 8310RT
• 8335RT
• 8360RT
• 9230
• 9330
• 9430
• 9530
• 9630
• 9470RT
• 9520RT
• 9570RT

1. 1

   Cycle power by turning the tractor off and cycling the key switch to see if the code clears from a temporary CAN bus timeout

2. 2

   Physically examine the Single Lever Control Transport Lock Switch on the armrest for signs of mechanical wear, sticking, or physical damage

3. 3

   Inspect all wiring and connectors between the Multi-Function Lever and the SCC (Rear Chassis Control Unit) for pinched wires, loose pins, or corrosion

4. 4

   Connect a diagnostic tool (e.g., John Deere Service ADVISOR) to monitor live data signals from the Transport Lock Switch to the SCC

5. 5

   Disconnect the switch and use a multimeter to test for proper continuity across the switch terminals in both the locked and unlocked positions

1. 1

   Power Down

   Turn off the engine, lower all hydraulic implements to the ground, and disconnect the battery to prevent electrical shorts during repair.

2. 2

   Access the Switch

   Remove the necessary trim panels on the right-hand armrest console to access the Multi-Function Lever assembly and its wiring harness.

3. 3

   Disconnect and Isolate

   Unplug the electrical connector for the Transport Lock Switch.

4. 4

   Repair Wiring

   If the diagnostic checks revealed damaged wiring or corroded connector pins between the armrest and the Rear Chassis Control Unit, repair or replace the affected harness section.

5. 5

   Replace the Switch

   If the switch failed the continuity test or diagnostic monitoring, remove the faulty Transport Lock Switch from the lever assembly and install the replacement. (Note: On some specific lever assemblies, the switch is integrated and the entire Multi-Function Lever Actuator must be replaced).

6. 6

   Reassemble and Restore Power

   Reconnect the wiring harness, reinstall the armrest trim panels, and reconnect the battery.

7. 7

   Clear Codes and Calibrate

   Use a diagnostic tool to clear the 523776.19 fault code. If a new lever assembly was installed, a calibration procedure for the SCV controls may be required via the CommandCenter.

8. 8

   Test Operation

   Start the tractor and test the Transport Lock Switch to ensure it properly locks and unlocks the SCV functions without throwing a code.