John Deere 523966.11 – Cab Module (TIA) / User Interface Control (UIC): Limp Home Mode Activated

This is an informational code indicating that the transmission's Come-Home (limp home) bypass circuit is currently active, allowing the operator to manually override electronic transmission controls to move the tractor to a safe location.

• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 6230
• 6330
• 6430
• 7430
• 7530
• 5M Series
• 6M Series

1. 1

   Check the Fuse Panel (Load Center) to see if the 'Come Home' fuse is currently installed (it should not be installed unless forcing the vehicle into Come-Home mode)

2. 2

   Check the Come-Home Connector (e.g., K10/2 or K10/4 plug) to verify if it has been manually engaged

3. 3

   Check for underlying fault codes on the display for other active PowrQuad/IVT transmission codes that may have necessitated the manual override

1. 1

   Park the tractor safely and turn off the engine.

2. 2

   Locate the tractor's load center (fuse panel).

   Usually located behind the operator's seat or under the right-hand console.

3. 3

   Remove the Come-Home fuse or disconnect the Come-Home connector.

4. 4

   Restart the engine.

   The official John Deere operator action for code 523966.11 is simply Restart to clear the mode and attempt to return to normal electronic control.

5. 5

   Operate the vehicle for 5 minutes.

   If the code returns or the tractor refuses to move, the transmission has a hard fault that is forcing the system offline, and you must diagnose the other active DTCs.