Blower switch died

callaway · **Posted:** Sun Sep 06, 2009 9:23 pm

The blower switch ( the knob that controls the force of the blowing air ) partial failed.
Settings 1, 2, and 3 don't work ( no air movement ) but setting 4 blows full blast like it should.

Any ideas what's wrong ?

STINGN · **Posted:** Sun Sep 06, 2009 9:28 pm

i remember people having the 2,4 fail...take a screw driver, look where you can put stuff under the radio thing, once thats out, pull the bottom out then the top, and try to see if something got disconnected

STINGN · **Posted:** Sun Sep 06, 2009 9:29 pm

where my sunglasses are, thats where the screw is, once thats out, then pull on the bottom where the screw was, then the top should come out too

flman · **Posted:** Sun Sep 06, 2009 9:31 pm

callaway wrote:

The blower switch ( the knob that controls the force of the blowing air ) partial failed.
Settings 1, 2, and 3 don't work ( no air movement ) but setting 4 blows full blast like it should.

Any ideas what's wrong ?

Common problem, replace the resistor behind the glove box, or you can test it for continuity, you should get continuity between any terminals. Just replaced mine a couple of weeks ago, same problem, only had a blower on high.

callaway · **Posted:** Sun Sep 06, 2009 9:36 pm

flman wrote:

callaway wrote:

The blower switch ( the knob that controls the force of the blowing air ) partial failed.
Settings 1, 2, and 3 don't work ( no air movement ) but setting 4 blows full blast like it should.

Any ideas what's wrong ?

Common problem, replace the resistor behind the glove box, or you can test it for continuity, you should get continuity between any terminals. Just replaced mine a couple of weeks ago, same problem, only had a blower on high.

Where behind glove box is said resistor ?

callaway · **Posted:** Sun Sep 06, 2009 11:06 pm

yellocoyote wrote:

you got that nifty FSM saved, right?

O yea

Forgot about that guy

flman · **Posted:** Mon Sep 07, 2009 7:25 am

open the glove box and bend the 2 plastic stops inward so it opens wider. You will see it, it is held in with 2 hex head screws and has a wiring connector on it with about 4 wires. It should be the only electrical thing behind the glove box.

KJ-BOL · **Posted:** Mon Sep 07, 2009 6:47 pm

Copied from jeepforum
easy repair

It sounds as if your blower motor resistor has gone out. It is a component that regulates the voltage going to your blower that allows it to run at different speeds. The reason it works only on high is that it doesn't use any resistance from the resistor on the high level. I have included here a procedure for replacement and I will give you the Mopar part number also. I wasn't able to find an aftermarket resistor at a parts store to compare online, so you may have to go to the dealer.

part # IRC TF308 929433R

Open the glove box door to gain access to the blower motor resistor (1).
Pull out the lock on the blower motor resistor wire harness connector (3) to unlock the connector latch.
Depress the latch on the blower motor resistor wire harness connector and disconnect the wire harness from the resistor.
Remove the two screws (2) that secure the blower motor resistor to the HVAC housing (4) and remove the resistor.

Read more: http://www.justanswer.com/questions/18q ... z0QSoJNiTp

valvestem · **Joined:** Thu Jul 07, 2005 7:01 pm **Posts:** 222

I am surprised you guys don't have this in the how to section or as a sticky...

Blower switch died

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