Bruce Nunnally

Mailbag: Blower fan, climate control inop

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Received this question on the blog:

90 caddy blower fan will not turn off. Climate control panel does'nt work. Can' get a digital fuel reading either. What could be the problem?


Bruce

2016 Cadillac ATS-V gray/black; 2013 Cadillac ATS 2L Turbo Premium (Wife's)

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I would start with grounds and fuses. Are there any aftermarket products such as remote start or security system installed under the dashboard?

I believe that there are some ALDS or OBD I codes that can be read on the 1990 models. If possible, I would get those codes, as they will likely tell us exactly where to start.


CTS-V_LateralGs_6-2018_tiny.jpg
-- Click Here for CaddyInfo page on "How To" Read Your OBD Codes
-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data
-- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC
Yes, I was Jims_97_ETC before I changed cars.

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Blower motor module is the problem with the climate control fan. The module was separate from the motor itself in that era.


Kevin
'93 Fleetwood Brougham
'05 Deville
'04 Deville
2013 Silverado Z71

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