((better)): John Deere D1a Code

Immediately press the pedal all the way down and release.

Look at your machine’s fuse diagram. Find the slot labeled or "Diagnostics" . Action: If there is a fuse in that slot, remove it . john deere d1a code

If your tractor is stuck in this mode and won't move (often disabling the forward/reverse lever), it usually means a diagnostic fuse was accidentally inserted or a wiring short is tricking the system into "thinking" it should be in diagnostic mode. Common Causes for d1A Appearing Unexpectedly Immediately press the pedal all the way down and release