Description of the vehicle
It is an automatic transmission 2004 Honda Odyssey. Runs great 95% of the time. Then once a month or so it has a problem.
Description of the problem
Ignition works fine, engine sounds normal. After the engine starts the "D" drive light is on, then after 3 seconds the gear light turns off. Then it will not change gears. Making it undrivable. I can turn it off and on several times and get the same problem. Then usually an hour later or so, it will work just fine again.
See video example https://youtu.be/8Yac2hJYvQ0
The engine starts in the "P" park. And shifting gears is not a problem.
Dealers can't diagnose the problem because it will start right up for them.
Anyone have any ideas? Thanks.