The fan will only work in the #4 position. I swapped out the entire module today and it still doesn't work. What else could it be?

 

Did you see this in the stickies from bill99gxe? I just did it on my '98.

Why does my A/C only work on fan speed 4?
There is a resistor assembly mounted on the air duct close to the blower motor. That part has failed. It is used to control fan speeds 1, 2, and 3. Speed 4 is the maximum blower motor speed, so no resistors are involved. Replacing the resistor assembly is something the home mechanic can do. The only tool needed is a Phillips screwdriver. The replacement part costs about US$25.

The blower motor is located just above the passenger's feet. Look at the wires leading away from the blower motor. Just inches away from the blower motor there is an electrical connector located on the air duct. That's the resistor assembly. It is easy to remove and replace.

Replacement is the usual remedy. However, if a spot of localized damage is seen it may be repaired with a soldering gun.

There is a good photo of the blower motor and resistor assembly in the Haynes repair manual, page 3-8. If you don't already have a copy of this book, please get one. It will be money well spent.

a) Move the front pass seat all the way back (for convenience)
b) Remove a harness connector (with 4 wires I think) running into the bottom of the blower motor.
c) Remove the 2 philips screws that hold the blower motor resistor in place.
d) Put new one in, reverse install.

Blower Motor Resistor Part Number: 27150-1E405

You can get it here:

http://www.nissanparts.cc/cart/?pn=27150-1E405

Should be $28 at your local dealer. It's $28 delivered from discount Nissan parts sites.


Edit: If you are handy with a soldering iron, you can try to fix it yourself. See this thread.

 

Stickies ftw!

The n00b found it, but an 02 member didn't.

 

+1 to the noob. Nice job.

 

You betcha. Had this part fail on both my '97 and '98. Thanks to this forum, I was able to get 'em back together fast!

 

setting a good example for all the newbs

 

Wouldn't you know it, temps dipping to 24 tonight (here in Austin Texas) and this Texas Gal is gonna be sad b/c my heater fan stopped blowing...any advise on what might be the problem?

 

Post #2 doesn't help??

 

I thought #2 referred to another year model...do you think it would work on my 2002?

 

Not 100% sure. I'd post up the same question in the newb thread, but in the 5th gen forum. You're in the 4th gen forum at the moment.

Edit: Here's the link:
http://forums.maxima.org/5th-generat...on-thread.html

 

Thank you. Will do.

 

You sent me to noobs...and I read there and posts related. Turns out it was my amplifier too...I posted an update elsewhere but wanted to say thanks to you for help'g me navigate.

UPDATE - SUCCESS! Ya'll are awesome! (Texas thing...) So, called closest "junk yard" and ended up e-mailing w/a very helpful gentleman who, obviously, understood I was learning about diagnosing my problem (thought it was blower motor) b/c I told him how much time I've spent reading the posts on this site to learn what part I needed... I ended up paying $75 for a (motor & regulator) for my passenger side window (behind driver), no credit here, I had a friend put that in...but the auto guy gave me the resistor off the same car he took the window part. Just gave it to me. He also kept the used blower motor handy in case I called him Monday to say I needed it (would cost me $50). TODAY - I took the glove box out...seriously, due to posts I read here, and changeD the power module and tested my blower; my blower is fine...the prob WAS the power module (resistor)...and now, I have heat & AC again! So my window is working again, my blower is blowing again all for $75...and LARGE part b/c you all educated me enough that I was able to find the parts I needed and do some hands on! Thank you again!

 

How can I reach this link? The oldthread method won't work.