my fan stopped working when i turned it on for some reason? any help would be appreciated, i unplugged both battery cables and did what lexmex said on taking the 2 fuses out the 20amp and 7.5 amp, took it out for a day , put it back on it worked then i turned it off with the button, then i tried to turn on with but and nothing then later i just left it on maybe 3 hours later it went on but it was not giving as much stron air as it normally does any one have this problem? any help would be appreciated thanks? or is there a specfic fuse for the fan and airconditioner or is there something to be cleaned? thanks

 

I am almost sure there is a fuse for the fan .. I dont know which one .. so check them all.

My hunch is that the fan runs all the time when the RX is running [runs at low speed .. typical of all vehicles]. You may like to play with the cabin filter. I just wish I had the electrical diagram to tell if there is an interlock with the filter or which fuse the fan motor is connected to.

Salim

 

salim thnks for your help i looked at the fuse box in engine bay and i saw huge square shaped fuse under the lid says there is a fan fuse? but do they sell those locally or must buy at lexes? thanks appreciate it. what happened to lexmex, he normally responds aswell thanks for advise

 

The other location for a most of the fuses is behind the coin holder . you need to take it out.

The engine bay fuses are the main fuses, when they pop, you loose a lot of electrical functions (typically).

Lexmex is here and helpful as always. I will try to add his helpful picture post. Look for #5
https://www.clublexus.com/forums/rx-...lay-blank.html

Have not seen you post for a while. How is the modding going on?

Salim

 

only has mufler and dropin filter gave to spouse kept my other ride. thanks for help . do u have to unscrew anything to get to the fuses where the coin holder is? thanks or just popoff the coin holder and will see it? thanks salim appreciate it. nevermind i seen in the pics thanks for help that was very informative and self explanatory. i guess i will check later on and see if it was a fuse that went out i am most likely sure it is because it was working strong.

 

Salim i checked fuse all is ok, unplugged battery, efi and ecu as before it needed to reset then was fine before, when i turn the **** on to give air circulated air i can hear a click sound like normal when it turns on, but no air comes out, i push the ac button it works only gradully go faster with out side air but with ac button on once you stop at a light no air whatsoever until you get going? any advise my friend thanks. apprecite it it was scorching warm today.

 

Any chance that it is the air damper as opposed to the blower fan. The "air servos" are notorious as they age. Also check the air filter if the flow is the problem.

If the above few leads do not pan out, it may be time to take the RX to a mechanic. For a thing like this, it might be better to pay higher hourly rate to get to the bottom of the problem quicker.

Salim

 

to look or get to the servos is that hard? thanks

 

https://www.clublexus.com/forums/rx-...x300-diys.html

look for #12

Salim

 

thanks i appreciate salim....

 

I had a problem like this. My Fan would run intermittently and then it stopped all together. The fan is a single speed fan controlled by a ‘Blower Control Module’ (part # 87165-22050 this superseded the original part #) (kind of like a dimmer switch) that regulates fan speed. It is located on the fire wall behind the glove box. While waiting for the part I direct wired the fan to an A/C plug and would plug it into the cigarette lighter when I needed air (It was summer when mine went). This also was my test that the fan was still working.

 

^ Great idea, to confirm if it is the fan or the air flow?

Salim

 

I have a 99RX - my problem is the fan runs in 'high speed' all the time when the A/C or heat is turned on. The **** adjusts the fan speed 'bars' indicator correctly, but the fan only runs in high speed. Any ideas on what the problem might be? Blower control relay maybe?

Any suggestions appreciated.

Thanks,
Roger

 

Can you point me to schematics for RX?

Salim

 

There is a posting up on the Lexus Owners Club site, under RX300, that offers "Rx300 Wiring Diagams Here, I have complete wiring diagram for 99 rx". I haven't tried it though.