Friend of the family works for the largest farmer in the area. They do alot of their own mechanic work. He said the new John Deere equipment is programmed to only allow the dealer do repair work and clear the codes. Something about having to unlock the computer software which only certified dealer can do.They've loaded bootleg foreign software to get around it, says there are several others doing the same thing. I'm seeing more red equipment locally which he says is in response to JDs software.