JettCRX

I have a 1999 RX300. I have read the other threads regarding the blower fan here, but I don't think I have the same problem.

My console display shows the fan speed varying as I change the temperature setting. The fan just never kicks on. I have checked both fuses (the 15A fuse in the dash marked HEATER and the 50A fuse under the hood marked HEATER), but both appear to be fine.

I did notice that in the Fuse & Relay compartment under the hood, there are three relays marked FAN #1, FAN #2 and FAN #3. Does anyone know if these are all the same? Could I swap them around to see if anything changes? Does anyone know how to pull one and test it? Does anyone know which one controls which fan? I assume one is for the blower fan, one is for the condenser fan and one is for the radiator fan.

Any suggestions or insight would be appreciated.

Tammy

The wiring diagram is in two parts ...

Tammy

And the second ...

JettCRX

Awesome! Thanks... that is a HUGE help.

JettCRX

Ok I had to take the car in to get a problem diagnosed (they never did figure out what was wrong and it hasn't happened since... /shrug) and while it was in there, I asked them to look at the blower fan. They told me that it was bad (shorted out) and that a new one would run me roughly $275 plus 2 hours of labor to install it.

Bah. I ordered a used one from a salvage yard for $60 shipped to my door. Now, the big question: Has anyone done this install? Do you have any pictures or diagrams you could post?

I ordered one of those $8 eBay downloads but have not received a download link yet and we're going out of town to the frigid northeast TOMORROW. I'd like to have functioning heat before we leave.

Thanks in advance for any help!

mikey00

why not download it for free?
http://us.lexusownersclub.com/forums...howtopic=33977

JettCRX

OUTSTANDING! Thanks!

As it turns out, the job the dealership wanted to charge 2 hours of labor for will quite literally take about 5 minutes. So glad I declined to let them touch that!

mikey00

don't forget to post a "how to" when job is complete. It may help someone else.

jluciano22

On 11/2/15 I brought my RX350 into the dealer because the heat was not working. It was only blowing cold air. They replaced the driver side air mix damper control servo to remedy free of charge. On 12/18/15 I brought the car back for the same reason and the tech removed and reinstalled blend door and reinitialized the servo free of charge. They said that this has never happened before and that it may have been caused from the febreeze air freshener clips. They think that maybe a piece may have fallen in and caused the door to stay open. They said next time it will cost about $1500 to fix if it happens again because they will have to take it apart and that would be what the labor would be. It happened again last week. I don't believe it was the air freshener clip. I think it is a defect. They are saying it is not under warranty. Wondering if this is what is happening with yours. Anyone else have a similar experience?

salimshah

Welcome to CL.

I want to make sure the title of this thread matches your concern, This thread is Blower Fan not working. Mode control impacts which vent the air comes from, while the blend/mix controls the heat/cold (thermostat). Take the system out of Auto and play with the mode, temp and fan speeds. Then append to appropriate thread or start a new one. Let me know how I can help move this post.

Salim

jluciano22

Thank you Salim. I will repost it.

jluciano22

Salim,

I am new to this and do not know how to move it where it belongs. Any chance you can help?

Thanks.
Joanne

jluciano22

Already did as you suggested and no change.

salimshah

Edit your first post of just add to the thread to clarify the problems MODE or temp or fan speed. Once you do that, then I can move your post(s).

Salim

jluciano22

Originally Posted by jluciano22 View Post
On 11/2/15 I brought my RX350 into the dealer because the heat was not working. It was only blowing cold air. They replaced the driver side air mix damper control servo to remedy free of charge. On 12/18/15 I brought the car back for the same reason and the tech removed and reinstalled blend door and reinitialized the servo free of charge. They said that this has never happened before and that it may have been caused from the febreeze air freshener clips. They think that maybe a piece may have fallen in and caused the door to stay open. They said next time it will cost about $1500 to fix if it happens again because they will have to take it apart and that would be what the labor would be. It happened again last week. I don't believe it was the air freshener clip. I think it is a defect. They are saying it is not under warranty. Wondering if this is what is happening with yours. Anyone else have a similar experience?

I have an update since I posted this the other day. I actually brought it to the dealer and they put a scope into the heater and took a picture of the plastic from a Febreze air clip. This is the problem which they are going to have to charge me to fix. The lesson here is ......DO NOT USE THE AIR FRESHENER CLIPS. The dealership told me I may be able to get my insurance to cover it? I don't see how but I will look into it. I just wanted to let you know the outcome.
Thank you .