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Topic Review (Newest First)
12-17-2014 05:57 PM
liquidfluidity Ok, this is a great forum and the search yields a lot of info, but it didn't fix my blower issue. I have a '97 Sport, no air. My blower only works on high. Replaced the resistor - didn't fix it. I bought a replacement switch which was a bit different than the stock one, and that didn't fix it. The loom looks great with no melting or deformation. Do I just bite it now and buy the blower motor?

I did re-install the original switch. I also found that there is no OEM available any more unless NOS can be found. The new switch had a longer , thinner plastic shaft. Total junk!
12-16-2014 04:45 PM
Sulkster I used 7/64" female disconnects to wire straight to the blower resistor. Working like new! Just a temp fix till new harness arrives. So nvr mind my prev post. Keep on jeep'n!
12-16-2014 02:09 PM
Sulkster Correction. After wiring the wires w/o the harness it did work.
12-16-2014 12:23 AM
Sulkster I just replaced the resistor on my 97 as well but It didn't fix the problem. I haven't had a minute to get under the dash since but I did notice the harness was melted on one side and assumed that was my issue after replacing the resistor. I've been looking online to replace the wire harness and before I order it I wanted to be certain. I saw a you tube video where a person wired it up w/o the harness after replacing the resistor and still didn't work. It didn't show a clip but I'm assuming he used female connectors onto each prong? The harness looked like it still made its connections and the fuse is good. Tomorrow I will wiggle the harness to see if I can get it to work but if it's not the harness what would be my next possible fix? Ty.
12-15-2014 08:52 PM
jon_76_89 What did you find was the problem?
08-27-2014 08:32 PM
Who turned out the lights?

I installed an electric fans many years ago... Now that I can sit back and think about the whole trouble-shooting process... When I was un my back looking upward, I remember hearing a noise. I believe I thought to myself, "sounds like something dropped!"

Well what dropped was the fuse for the A/C... I don't know how but after reviewing the fuses, the A/C fuse was missing... Found it.. Plugged it in... Bingo Bango... A/C blows cold... Fan is a spinning... Reset the check engine light and wuhhlah... Everything fixed.

Moral of the story... Be aware of your surroundings.

08-26-2014 06:12 AM
Neil F. The HVAC is not monitored by the OBD system. 481 is cooling fan i.e. engine. Does the 2.4 have an electric fan? The only TJ post (search) I see in another 2.4 The only other wranglers I see with that code are JKs
08-26-2014 05:58 AM
popeye304 My wife's 06 Wrangler SE (2.4 cyl) fan started blowing only high. I removed the resistor...started up the Jeep to drive to the parts store to get a new resistor and noticed the check engine light was lit... I figured it was because the resistor was removed. I purchased the resistor and drove back home... installed the resistor... all four fan speeds now worked. I attempted to clear the Check Engine light and the codes P0481 and P0482 cleared... started the Jeep up and the Check Engine light is still enabled and the same fault codes are present. I suspect P0481 and P0482 is fan slow and high speed but what did I do wrong? I can't seem to figure this out.
05-13-2013 04:07 PM
mmbrock77 Ebay has the part, too. I replaced mine in my '05 TJ. It's behind the glove box. Kind of a pain to get to but it's do-able.
05-13-2013 03:51 PM
BigDaddyAt Nice. Now I know what has been the issue...and how to fix it
05-13-2013 09:48 AM
ronpete13 Changed mine this weekend - Works again!! - Don't hurt to have someone with smaller hands
05-06-2013 02:47 PM
thgr8alex Ya autozone wanted 45 bucks for that piece. Found it on quadratec for 27
05-06-2013 02:44 PM
Relocatedduckman It's the resistor under the glove box. Mine was that way. Replaced it.. Boom.. Good air again..
05-06-2013 02:29 PM
thgr8alex My jeep is doimg the same. Only works on the 4th setting. So i got all or nothing..literally. Hah so i was near autozone today and they said it was 45 bucks. Is that too much for one as i saw on here its a 20 dollar fix or so?
05-06-2013 10:45 AM
Neil F.
Originally Posted by ronpete13 View Post
Mine works on the 2 higher settings but not on the 2 lower? - 2004 TJ
Thoughts on that....

Replace the blower resistor as indicated. On mine and my neighbors, we lost fan speeds one by one over time.
05-06-2013 10:28 AM
ronpete13 Mine works on the 2 higher settings but not on the 2 lower? - 2004 TJ
Thoughts on that....
05-05-2013 07:56 PM
Mine went out on a 97 TJ

My fan would only work on high and the switch from floor to defrost had stopped working also. Removing the leaves that had filled up in there fixed the switching from floor to defrost and the resistor fixed the speed control.

What in the world did we do before the internet?

03-12-2011 07:58 PM
snow.thrills I had the same problem in the fall. Only high speed would work, sometimes. I replaced the resister and that didn't work. I almost went the blower route but decided to replace the heater control assembly instead after reading some good posts on this AWESOME Forum. Glad I did it was a 30 min at most $90 fix. It turned out the vacuum switch was shot and the back side of the assembly was a little melted which I think caused the vacuum switch to sit in a bad position and fail. According to some of the jeep parts websites you can replace each one of the heater switches/selectors individually, just another decision you may want to consider. It only takes a few minutes to take apart the dash an take out the assembly. I was able to tell my issue as soon as unscrewed it from the dash. A little wiggle on that switch and everything worked as it was supposed to. You may even be able to wiggle that switch from the glove box. Good Luck!
03-12-2011 05:55 PM

Originally Posted by Hondarider View Post
2003 TJ 4.0 5spd. So the heater fan only works on the highest setting...nothing happening on the other three settings. Blower motor or the switch? Has anyone seen this before? If this is a common failure, it might save me some time on the troubleshooting side of things. Thanks.
just went thru this same thing last week it was the switch in the dash. i found out the hard way after i bought a new resister and that wasnt it!
03-12-2011 05:46 PM
DCP10 Was able to replace fan motor resistor for '99 TJ with a wrench and a new $47 NAPA brand fan motor resistor in about 10 minutes.

Differential diagnosis for faulty AC/heat fan speeds: (1) faulty fan motor resistor, (2) shot fan motor, (3) HVAC manual dashboard control defect, (4) faulty fuses, and/or (5) underlying electrical failure of indeterminant specificity requiring advanced diagnostic workup.

Youtube has several good instructional videos on how to replace the resistor. For example:
02-06-2011 11:46 PM
Plowboy1970 I too just lost all speeds but high. I could smell a slight electrical smell and thought, what is going???? But I read lots of these forums to know what it is. This forum is GREAT!!!!

THANKS to everyone here!!!!
02-05-2011 03:30 AM
s3nt3nc3d Could be a resistor pack, but I'd check the wiring to the HVAC controls in the dash...often times problems like that are due to melted wiring at the switch.
02-05-2011 02:20 AM
Originally Posted by Mikiec View Post
What about it only working on the second speed and none of the others? This is on my 99.

i would pull it out and look at it, its a 20 part and not to bad to change it fixed mine
02-03-2011 08:56 PM
Mikiec What about it only working on the second speed and none of the others? This is on my 99.
02-03-2011 07:44 PM
Loo Replaced this in my 04 last fall. Super easy. Glad I did. I don't like blasting the heat or AC.
02-03-2011 07:17 PM
rtiburon I have a 97 too. Just changed out the resistor/rheostat for the blower last year. Here's a link with pictures. Blower Motor Resistor Install - Just inside the passenger door under the glove box there's a black plastic kick-stop panel that's kind of a PIA to remove. After that it's a snap.
02-03-2011 06:18 PM
05wrangler right on thanx alot guys, im goin to go get one tomarow, then off to the deeler for that "E05" recall
02-03-2011 06:04 PM
Bryangb7 I just went to the local parts store (advance auto) they had it in stock 20 bucks. I asked for the resistor pack and explained the problem and they gave it to me...two bolts and a plug later I have all four settings
02-03-2011 05:49 PM
Originally Posted by 05wrangler
i have a 05 TJ that is doing the same thing, only working on high, where could i get this relay and what is it called?? how would i got about checking the switch selector??
Me to
02-03-2011 05:42 PM
05wrangler i have a 05 TJ that is doing the same thing, only working on high, where could i get this relay and what is it called?? how would i got about checking the switch selector??
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