Thanks Zafar, but I think the codes you supplied may be for another car...
From JimF's site I pulled the following data:
2: EA/CC/ISC Control Module
5: Stop Lamp Switch
11: Fuel Safety Shutoff to LH-SFI Control Module
I cleared the codes last night and the only one to return is code 2.
After reading more, I tested the cruise control - it is dead, not working at all.
I also checked for the date on the wiring harness tag. The only tag I could find was on an unused fuse holder mounted near all the ground connections by the battery. Is that part of the main harness or a different one? The tag said 02/94. If that is the tag for the main harness, then mine has not been replaced.
These symptoms are leading me toward replacing the harness and the throttle actuator.
I will cut the harness open near the coils tonight to check the condition of the insulation. What else can I test before beginning to acquire expensive parts?
I hope a tech will weigh in soon...
Experience is something you don't get until just after you need it.