Doubt the led will be on if you only have 2V. Try running a strong magnet around the face of the black box to reset it/turn the led out as they are known to disconnect the 12V to the control board for no reason. If you can't get the recall/black box to reset (light to go out) you can bypass it, but you need to monitor the flue for overheating on the slim chance the recall box did its job.
Corrosion on the ends of a fuse can give you low voltage but I have some doubts about that being your problem.
This post is my opinion (free advice). It is not intended to influence anyone's judgment nor do I advocate anyone do what I propose.
Sold 04 Dynasty to our son after 14 great years.
Upgraded with a 08 HR Navigator 45’...