barbwebb

the lights did go away when I disconnected but when I was checking the servo motors while the car was running just as I turned the AC on they came back on. When I corrected the flap so the AC would blow the lights went out and has not come back on. Yes I agree this is puzzling but I am not gonna grip I am gonna be thankful that everything is working the way it should. If...I hope a big if they come back on I will have them read again...then you guys can listen to me again..lol

Francis

Where is the servo motor? Does it near the air filter or the radiator?

gazi001

It located near the left side of the glove box. Here is the pic.

Shift_RX

Thanks. I learned something new today. Going to stash it in my lexus toolbelt of knowledge

GaRobert

Hey Barb.. I have just the other problem, I have no heat. Looking at the picture you posted it looks like the lower servo . Salim give me information also. How hard was it to get to that unit. Not as young as I use to be, so the body is not as limber as it use to be.

salimshah

Please verify the compressor and refrigerant are working. This can be done by checking the high pressure line from compressor is cold. If that is all good then look at the mix servo.


Salim

gazi001

Here is the link for DIY:
https://www.clublexus.com/forums/rx-...vo-arms-2.html

barbwebb

it was actually very easy.
there is 2 screwes in the glove box once thats removed you can remove the duct and everything is visible to the lower left of the glove box.

juaid86

hi, i have the same problem the ac keeps going hotter and hotter and i filled it up with freon once and within 1 week it started to get hotter again, could it be the servo mixo thing???


Ahmed

Iluvlexus

Just finished replacing my air-mix servo after 2 attempts at repairing the existing one using the "rebuild" techniques described by others in this forum. The servo would work for a while and then fail again and it is a bit of a pain to remove so I finally bit the bullet and bought a new one.

No AC could be the servo or the compressor or a freon leak. First run your AC for a few and check the temperature of the lines coming from the compressor. If the are hot and cold the problem is likely the servo. I found the best tool to remove the screw behind the heater pipes to be a small slotted screwdriver which can be placed between the pipes. I have gotten pretty good at this removal/reinstall and can now do it in 30'.

You can temporarily resolve the servo issue by loosening the screws holding the servo and disconnecting the servo arm from the air mix lever. The lever will assume the cooling position.

Good luck

jamsk8s

I just bought this car and same issue just heat blowing out. Tomorrow I will try to access the servo motor and push the White clip up or down to see if this changes. I'm hoping for the best. Thanks

salimshah

Start by checking if there is chilling going and condensation is dripping (assuming you have humidity), check the AC clutch and see if the load and rpms get affected by the AC being turned on [2nd electric fan should kick in too]

Salim