Ok, it sounds like you might have a circuit board issue I sent my direct contact information to you already and have responded to your direct messages as well -AKATV

Thank you.      Took a few machines out with family this weekend. Everyone that drove my bike noticed and commented on the rattle. Like it otherwise….

Yes - have 12v power @ both brown/black wire red/black wire with the key on  

Welcome to the forum! First thing I would do is make sure that you have power on both brown/black wire red/black wire with the key on i’ve been seeing a lot of these lately with a failed CPU and the card needs to be replaced Not saying that your case, but it could possibly be I will send my contact information to your message box as well I recommend downloading the Honda factory service manual from our digital library as well to troubleshoot that oil circuit -AKATV

@AKATV I am a new member and am getting familiar with the platform.   2004 Honda Rancher 400 AT 4WD Backlight works - no data is displayed Neutral / Reverse / 4WD LED's light when appropriate Oil LED never lights - I need to troubleshoot sending unit Connectors at gauges and Grey connector on harness look clean and shiny   Would like to have gauges repaired - please let me know what my next action is.