First of all, thanks JimF for your information on A/C checks. They are very informative.
I have a 1995 S320 with 180,000 miles bought used that the blower would slow without cause and finally stopped blowing all together.
All sensor readings appear normal with step 8 going from 8 to 60 with fan speed dial min to max.
There were a couple DTC but I don't know from when they occured, I deleted all back to E000 to see if new codes logged.
It stayed on E000 for 3 days now. Did not show E001. Don't know if that is a problem or not.
I believe next step would be to check red to black and yellow to black voltages on reg.
Any suggestions welcomed.
Thanks again
Murf