Thanks Gilly!

I will check the fuse box this weekend. The other thing that entered my mind is that I might have a vacuum leak to the switchover valve, so I intend to check its vacuum source as well. I do have the ACC Diagnostic Manual and there are two modes you can use to send this model into dianositc mode.

Test Mode A - With ignition on, press REST and within one
second, press blower speed button 4.

No Faults is indicated by an alternating in car
temperature and 02.

Test Mode B - Turn temperature wheel to white field

Turn ignition on and within 10 seconds press F,
RECIRC, and REST simulatneously for 2 to 4
seconds.

No Faults is indicated by 01 on the display.

I can't get either one of these to work. As I said I will check the fuses and see if I might have a problem there. I 'm a little concerned that I'm not getting diagnostics though.

Thanks again,

-Dennis