John Deere 522149.31 – TIQ: Ground Speed Has Been Slowed / Wheel Speed Limited

The tractor's control software has actively reduced or limited the vehicle's ground speed. This is a cascading code, meaning it is not a failure in itself, but rather a protective reaction triggered by another active fault or operating condition (such as an operator out of seat, transmission protection mode, or communication error).

• 6110M
• 6120M
• 6130M
• 6145M
• 6155M
• 6175M
• 6195M
• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 6090MC
• 6100MC
• 6110MC
• 6090RC
• 6100RC
• 6110RC
• 8235R
• 8400R
• 8310RT
• 8335RT
• 8360RT
• 9470RT
• 9520RT
• 9570RT

1. 1

   Check for other active codes using the CommandCenter display or a diagnostic tool, as the root cause will be identified by another code

2. 2

   Ensure the operator is firmly seated, as seat switch faults frequently trigger speed derates

3. 3

   Attempt system recovery by reducing the commanded speed or moving the reverser lever to Park or Neutral

4. 4

   Perform a power cycle by turning the key switch off, waiting a few moments, and turning it back on to see if the condition clears

1. 1

   Address Root Cause Faults

   Diagnose and repair the primary fault code that triggered the 522149.31 speed derate.

2. 2

   Clear the Speed Limit State

   If the primary issue has been resolved but the speed limit is still active, move the reverser lever to Park or Neutral, or manually reduce the commanded speed on the drive lever to reset the system.

3. 3

   Inspect Wiring

   If the code persists with no other faults, inspect the CAN bus wiring harness and connectors going to the TIQ module for loose pins, corrosion, or damage.

4. 4

   Software Update

   Ensure the TIQ control software is updated to the latest version, as firmware glitches can sometimes cause unprompted speed derates.