Cadillac Owners Forum banner

1 - 19 of 19 Posts

·
Registered
Joined
·
8 Posts
Discussion Starter #1
Re: Blower Motor Resistor Location :banghead:

New thread? Can't find where I'm supposed to enter a new thread?

I have a Cadillac Deville 2003 and the front blowers start when they feel like it so no air or A/C. I have been told by ' O' Reilly's ' auto spares that the blower motor resistor needs replacing. Fair enough so I got one. Where is it? and is it easy to replace? Yep they didn't know where it is on a Cadillac - not their fault I doubt they get asked very often.

I'm informed it's held in place by two bolts and according to the 'Haynes' manual wiring diagram it appears to be connected to the Auxiliary Blower Motor which is located behind the central Dash Board Consul is that where the resistor has to be accessed?

Many thanks in advance to anyone who can help with this one.

Kit :banghead:
 

·
Registered
Joined
·
4,854 Posts
Re: Blower Motor Resistor Location :banghead:

New thread? Can't find where I'm supposed to enter a new thread?

Looks like you found it.
I have a Cadillac Deville 2003 and the front blowers start when they feel like it so no air or A/C. I have been told by ' O' Reilly's ' auto spares that the blower motor resistor needs replacing.
Your year model does not use resistors to control blower motor speed.

Diagnosis begins with displaying the Diagnostic Trouble Codes. Here's how:
http://www.cadillacforums.com/forums/cadillac-tech-tips/172511-how-pull-codes-98-04-sevilles.html

Tell us which "B" (for Body) codes you see.
 

·
2004 Deville
Joined
·
575 Posts
My 04 does the same thing I found that the plug on the motor is loose. If the blower won't start I just lean over and give the hush panel where the blower is a little tap and the blower starts right up.
 

·
Registered
Joined
·
8 Posts
Discussion Starter #4
OK I'm getting very conflicting information about the auxiliary blower motor location and whether or not it has a resistor that can or cannot be replaced.

Auto spares places say there is one on here I'm told there isn't one and the Haynes manual is as clear as mud as to the actual location of the motor itself and makes no mention of a resistor even for earlier year models.

The vehicle I have is a Cadillac Deville 2003 4.6 with a 32 valve North Star V8 engine. Cadillac want me to take it to a service center. No chance of that after one of their mechanics changed the rear set of brake pads instead of the front ones. I did the job myself once I became aware of the error. (The sound of grinding metal gave it away).

Would someone please clarify where the motor is located and how to access it. One source says it behind the center consul another states it's behind the passenger consul. Only one can be right surely.

An earlier response to this post stated that there is no replaceable resistor as it is integral to the motor on the 2003 model. So it is looking like I will need to get a replacement motor.

Sorry to appear so dumb.

Kit:cookoo::
 

·
Registered
Joined
·
4,854 Posts
OK I'm getting very conflicting information about the auxiliary blower motor location and whether or not it has a resistor that can or cannot be replaced.
In your post #1, you were asking about the "front blowers". Now you are asking about the auxiliary blower. Talk about conflicting information.

For the record (again), your year model does not use resistors to control blower motor speed. Believe whatever information source you will, but this is a Cadillac owners board and some of us have the appropriate (Helms) Service Manuals available and even know whereof we speak.

Read post #2 and tell is what "B" codes you have.
 

·
Registered
Joined
·
8 Posts
Discussion Starter #6
OK here are the codes I've been asked for:

IPM B0249 History
IPM B0429 Current

Just so you know my 2003 Cadillac Deville does have an Auxiliary Blower Motor Resistor. I actually went looking to see if there were any cables that had become disconnected. I did the following:

1. Removed the divers side knee bolster.
2. Removed the passenger side knee bolster
3. Removed the upper center grill panel.
4. Removed the four bolts securing the lower center panel.
5. Disconnected the electrical connector to the lower center panel.
6. Folded back the carpet in the passenger side of the center panel to give access to the Auxiliary Blower Motor Resistor.
7. I removed the two bolts holding it in place.
8. I disconnected the wiring.

I replaced the resistor with a new one Just in case this was part of the problem. Unfortunately this did not correct the problem I'm having.

I did not find any disconnected cables.

If you would like me to provide you with a photograph I would be quite happy to do so.

Kit
 

·
Registered
Joined
·
4,854 Posts
OK here are the codes I've been asked for:

IPM B0249 History
IPM B0429 Current

Just so you know my 2003 Cadillac Deville does have an Auxiliary Blower Motor Resistor.
Mea culpa. Pass the ketchup so I can eat my words.
I was going on memory instead of looking at the schematic.

If you still have access to the area, I would remove the chassis harness connector at the resistor and run a jumper wire from pin C to a good chassis ground. That should cause the rear seat blower to run at high speed.
 

·
Super Moderator
Joined
·
86,145 Posts
This is not a resistor problem. It's an actuator problem.
B0429 - Temperature Control #3 Rear Circuit Range/Performance
 

·
Registered
Joined
·
6 Posts
This is terrific and timely thread, however what was the outcome? I have the identical problem with same problem codes: IPM B0249 History, IPM B0429 Current.

The only caveat to this issue is when my front seat air worked the rear would only blow hot, and was adjustable. The front seemed to work fine, full temperature range adjustments and venting.

BTW, I have 2002 DTS. It would be great if I could handle in my garage but I need some guidance.

Thanks,

Marshall
 

·
Registered
Joined
·
2 Posts
I have a 2003 Deville. Similar problem. The front blower comes on when it wants to. Sometimes it takes an hour, sometimes it takes a few minutes. Strange. I live in Savannah, GA where it is very HOT. A few minutes without AC is unbearable. The funny thing is, it just comes on for no apparent reason. WHen it is off, I have hit the dash, clicked EVERY button, turned EVER knob. I hit buttons fast, hold them in, anything I can think to try. Nothing works. But then, all of a subben, it just startes working. Then when I turn off the car, it is a gamle as to whether the blower will work when I start the car the next time. Is it this resistor? Or is it the blower motor, or a thermostat problem?
 

·
Registered
Joined
·
26,323 Posts
Did you read any of this thread? There is no resistor.

The thermostat has absolutely nothing g to do with the blower motor.

It's most likely a bad blower motor, or a loose ground behind the passenger side kick panel.

BTW, :welcome:
 

·
Registered
Joined
·
11 Posts
I realize it has been 3 years since your post, but I too am having the same problems. Already spent 2 hours looking for the resistor. Yes, I would like, if possible, any pics you can send me help with this new headache.
Thanks :worship:
 

·
-Administrator- 2002.5 F55 STS 2014 FWD Explorer
Joined
·
66,587 Posts
Based on your other posts I determined that you drive a 2003 Deville - it makes a difference. I also updated your login header to reflect your car year/model.

I believe that your blower motor resistor pack is in the front flat area under the console center section (flat wood) cover.

Google "cadillac forums 2003 deville hvac blower motor resistor module replacement" or something close.

www.rockauto.com
 

·
Master of the Dark Art of Diagnostics
Joined
·
18,796 Posts
I realize it has been 3 years since your post, but I too am having the same problems. Already spent 2 hours looking for the resistor. Yes, I would like, if possible, any pics you can send me help with this new headache.
Thanks :worship:
-------------------------------------
FIRST -
are you having a problem with the FRONT blower - or the REAR blower -
 

·
Registered
Joined
·
11 Posts
-------------------------------------
FIRST -
are you having a problem with the FRONT blower - or the REAR blower -
I was haqving problems with the from blower, already replaced it. I was told to replace the resistor also...but can't find it.

Have not checked the rear blower

Thanks

----------

Just saw your reply.. will try your Google suggestion
Thanks
 

·
Master of the Dark Art of Diagnostics
Joined
·
18,796 Posts
I was haqving problems with the from blower, already replaced it. I was told to replace the resistor also...but can't find it.

Have not checked the rear blower

Thanks

----------

Just saw your reply.. will try your Google suggestion
Thanks
------------------------------
I was haqving problems with the from blower, already replaced it
well - if you replaced the front blower - and it is now working properly -
there is nothing else you need to replace -
 

·
Registered
Joined
·
1 Posts
Kit, this is a common problem with the blower motors on the Cadillac. I doubt it's the resistor. I had the same problem and decided to remove the blower to see what the problem was. The motors in these cars ingest ALOT of outside dirt that cakes at the bottom of the motor and around the brushes which breaks the continuity between the brushes and the armature. Split the motor housing apart and thoroughly clean everything inside. (small paint brush and vacuum works wonders) Reassemble and test the motor before reinstalling. I think this will solve your problem.
 

·
-Administrator- 2002.5 F55 STS 2014 FWD Explorer
Joined
·
66,587 Posts
Welcome to CF !!!! :welcome:

This thread has been dead for a year and a half, and the OP has not logged in for at least 4 years. You might want to set your profile thread/post preferences to "view latest posts/threads first".
 
1 - 19 of 19 Posts
Top