First, disconnect the negative battery terminal and wait at least 10 minutes for everything to reset.
If that doesn't help, then I'm afraid you will have to attempt the horrendous top troubleshooting section in the 2005_Crossfire_SRT6_Service_Manual.pdf that can be found in the documentation section of onehundred80's helpful links :

Index for Crossfire problems and How To's
https://www.crossfireforum.org/forum/...tml#post585345

Consume at least one complete six-pack before you begin ......

( NOTE: if all else fails, there is a section in there concerning the MANUAL top up/down procedures )