A common problem on the '90 &'91 Reatta is the electronic dash reading 00 & ERROR.
The following information is only for 1990 & 1991 ReattasThe dashboard goes dark and Speedometer shows 00 and the word ERROR comes on. The orange idiot light also comes on showing "Electrical Problem". This is a common problem that is usually caused by one of three things: A bad connection at the dash, a bad key switch, or a bad dash unit.
First clean the key and spray some cleaner in the switch. Try another ignition key. If that did not fix it, remove the dash unit and make sure all of the contacts on the back of the dash unit were tight and clean.
If that fails use the Field Service Manual to troubleshoot the problem further or send in the unit for repair or buy a new rebuilt one. Jim Finn is a great source for used Reatta Parts. He is well respected on the AACA Reatta Forum. He can be reached at: firstname.lastname@example.org
Thanks to members of the AACA Reatta forum for this information.