Mountain78

My 1996 Lexus 400 blower fan doesn't come on for a looooong time after turning on. It seem to work on the front defrost a little bit.

Mountain78

Lately it is not coming on at all. Thanks if anyone can help

LScowboyLS

of course check both your blower fuse and relay first, however the likely failed part is the blower motor control (aka blower resistor) - this used to be a cheap part, and still is on 1994 and earlier models, unfortunately this has become a rather expensive part on '95 and newer LS400 at both the dealership and even autozone, o'reilly and advance auto parts, it is $250-$300 at any of those. - a rare case when the autozone type of store is no cheaper than the dealership.

however I did find a somewhat better deal on the genuine Lexus part at a Lexus dealership in Atlanta called Lexus of South Atlanta for $187 - they are quite reputable and a big Lexus dealership, I have ordered a lot of parts from them - the part number is 87165-50020 and here is a link below where you can order it or call them and discuss how often they replace those - it is not too difficult to install for a backyard mechanic with patience and attention to detail and focus.

Lexus Blower motor control at a discount in Atlanta Lexus dealership

this is what the part looks like:



also, if you are patient, these show up on ebay for around $40-$100 from time to time, or else you can try local junkyards who should have them available for $30-$75 used - just look for that part number at both ebay and the junkyard

Mountain78

Thanks so much.

Mountain78

I am down to my last key. The one for your wallet. I have ordered blanks and fobs from EBay but can't anyone to lazier cut.

sha4000

iTrader: (1)

Just go the the dealer, should be about $40.

PureDrifter

iTrader: (10)

i've got like 5 local locksmiths that will cut them for ranging from $15-35/key.

Just call locksmiths and ask if they can do "router-cut" keys for lexus/bmw/mercedes. They aren't actually "laser cut"

Mountain78

I purchased the part you suggested that might be the problem from the dealership in Atlanta

It didn't fix the problem. (Fan not blowing) Do you have any other suggestions?

The fan is blowing a little bit. When you change the mode you can hear a grunting or grinding sound.

BluesImage

How fairly easy to install? Can you get to the blower control module by only removing the glove boxes?

lgree

hello did you ever get the blower working

lgree

hwy guys i have a 98 lexus gs400 and after removing a fuse y ac fan stop working. the funny thing is that the fuse that i removed seem like it was not connected to anything. the ac still blows cold from the outside air so the freon and everthing is ok, its just the fan that is not blowing. i took it to firestone and they said it would cost 800 dollars to fix and it was a multiplexer module that controls all of the electrical in the car. im pretty technical minded but i just could not understand what they were saying. i thought it could have been the resistor or the relay but they said it was not. im not trusting them at all with the diagnosis. can someone help. has anyone had any problems with the fan not blowing.?

Yamae

$800 is a bit expensive to me too. But the part alone costs a few hundred dollars, you must know.
Sorry to say but your technical mind is not quite up to date. Many car manufacturers have started to use semiconductor modules to control the speed of fan motors more than 20 years ago. A 98 LS400 has a fan control module which doesn't generate too much heat using semiconductors. Your gs400 may be the same. It has a high current and high speed switching circuit inside and it costs much higher than those old day's simple devices as you mention.

lgree

I removed the blower motor and tested the wires that run to the blower motor and i got no voltage so i dont think its the module. I teied to trace the wires from the blower motor until i couldnt see it anymore. I dont know where those wires lead to. At point what can i do?

Packratt52

[QUOTE=whokidd;8153772] Actually there is a replacement resister for the LS400. I get all my parts from http://www.carparts.com/. They have great prices and fast service and most of the parts are direct fit.

AC Delco Relay 1996 Lexus LS400


1996 Lexus LS400 Base 8 Cyl 4.0L





AC Delco Relay-Blower motor relay


Part Number: E1749A$21.06

• Features
• Description

• Type:
  Blower motor relay
• Condition:
  New
• Product Fit:
  Direct Fit
• Quantity Sold:
  Sold Individually
• Recommended Use:
  OE Replacement
• Anticipated Ship Out Time:
  1-2 Business Days
• Replaces O E Number:
  89057593
• Terminal Quantity:
  4
• Terminal Type:
  Blade
• Part Number:
  E1749A
• Availability:
  In Stock
• FitNote
  Oe No. 90987-04002

AC DELCO – OE REPLACEMENT BLOWER MOTOR RELAYS

The factory-original fit and lasting function of AC Delco’s OE replacement blower motor relays provide the perfect repair without breaking your budget. Established in 1899, AC Delco manufactures original GM parts and premium OE replacement parts for other brands in the automotive aftermarket.

• High-grade design delivers extended lifespan
• Carefully formed to suit your specific vehicle
• Engineered to exact OE standards
• Has undergone stringent evaluation to guarantee proper fit and performance

• List Price:
  $24.85
• Our Price:
  $21.06
• Your Save:
  $3.79
• SKU:
  ACE1749A
• Quantity:
  

DoktorYes

I had the same problem. It was the heater relay in fuse box under hood,. that was bad.1994 LS400. I hope they are the same. Good Luck