Heater 05 fist gen Cadillac deville

Asked by GuruPLM53 Jan 20, 2020 at 02:08 PM about the 2005 Cadillac DeVille DHS Sedan FWD

Question type: Maintenance & Repair

I have a 05  cadillac deville where the heater quit working. It
started as having to tap on the dash and it would kick on.
Now it doesn't kick on at all. Dont want to sink a bunch of
money into it just to fix the issue. I know it's either the
blower motor or the on the controls on the dash as they look
pretty worn.

3 Answers


Any motor that uses brushes, if the brushes get worn, the motor may run intermittently. You may be able to peck on blower motor with screwdriver handle and it starts running. Right now it sounds like the blower motor is faulty? The diagram is for 05 deville, hopefully the deville dhs has the same wiring diagram for blower motor. You can see the fuse, check it. In my opinion, in the diagram, the purple wire is voltage and the black wire is ground at the blower motor connector. Have you checked voltage and ground at the blower connector?

I haven't torn into it yet honestly. Il look into it tomorrow. Hard to get a day off. Thank ypu

Your Answer:


Looking for a Used DeVille in your area?

CarGurus has 10 nationwide DeVille listings and the tools to find you a great deal.

Postal Code:

Cadillac DeVille Experts

  • #1
  • #2
  • #3
View All

Find great deals from top-rated dealers


Related Models For Sale

Used Cadillac DTS
11 listings starting at $12,499
Used Cadillac Seville
3 listings starting at $3,590
Used Lincoln Town Car
12 listings starting at $8,900
Used Chevrolet Impala
18 Great Deals out of 893 listings starting at $2,495
Used Cadillac CTS
16 Great Deals out of 214 listings starting at $3,495
Used Cadillac Escalade
17 Great Deals out of 700 listings starting at $5,499
Used Chrysler 300
27 Great Deals out of 752 listings starting at $3,495
Used Dodge Charger
32 Great Deals out of 768 listings starting at $3,900
Used Chevrolet Corvette
15 Great Deals out of 515 listings starting at $7,995
Used Cadillac STS
13 listings starting at $5,833

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.