If your tractor behaves normally despite the code, you may have a logged historic error—not an active one. However, if the stop light is on, proceed immediately to diagnosis.
Valtra Fault Codes and Diagnostics Guide | PDF | Clutch - Scribd valtra error code l302 link
For newer models or persistent issues, professional diagnostic tools (like the Valtra MultiTool If your tractor behaves normally despite the code,