Your post confuses me a little bit but I'll try to help:
Quote:
|
Originally Posted by telcojl
the fan controls do not change blower speeds.
As for the blower, no blower operation exists.
|
So your blower motor does not come on at all?
Quote:
|
I only have air coming from the defrost vents with no blower function.
|
Or it does come on sometimes or blow out certain vents only?
Quote:
|
I have replaced the ignition switch feeling that it might have had something to do with it because the system worked fine when I got the car and then one day it just quit.
|
This leads me to believe that it is a fuse or something simple like that. Have you inspected the fuses? Also why did you replace the ignition switch?
Quote:
I have replaced the voltage regulator and I have swapped out the CCU, all with no change.
At the fan plug up under the winsheild cover I have found the following:
Black wire to ground,, Red wire constant +12v
Yellow wire with fan on high +2.25v, on low +1.5 v and on AUTO +0.0v
Fuse #5 has +12v, Fuse #12 0.0v and Fuse D +12v
I also pulled the glove box and found good vacuum and have no other issues engine vacuum finne, door lock system fine etc..
DON"T KNOW WHERE TO LOOK NEXT
1988 260E if it matters
|
How did you measure the voltages at the fuses? The information I have suggests that fuse 7 is the fuse for the climate control system. I would look at this fuse, take it out and verify that it is not broken/cracked.
Good luck!