DIY on changing servo motors

[sakataj]

for the most part this is complete. this was a very time consuming DIY because i stopped and took pics and documented it. will update when i get new servos in as last ones i got still didnt work (dont buy them used). i do suggest you do both even if only ones out as its annoying to have to do this ONLY 2 turn around and have to do it again when the other goes out to! i figured it was about time some1 did a DIY on this so here it is

if your gonna do the DRIVERS SIDE SERVO. here is a link to a gentleman that can help you out and his post
http://www.clublexus.com/forums/gs-s...rol-servo.html
HERE IS ANOTHER GOOD ONE ON THE DRIVERS SIDE GUYS
http://www.clublexus.com/forums/gs-s...ml#post4784932
here is the part # 87106-30351, Lexus OEM Damper Servo Sub-Assy
or a link from sewell to it
http://www.sewellpartsonline.com/par...id=82159&all=Y
and a pic of it....



OK SO FOR THE PASSENGER SIDE
part numbers from sewell are: i paid this price using discount cl911m but if u use clublexus as the discount they are cheaper (2 bad i didnt know that till today). search under part #'s

Product #:8710630371 Lexus OEM Damper (For Mode) Servo Sub-Assembly, Quantity:1, Price:$143.38, Item Total:$143.38

quick link (this is WITHOUT the discount price, you'll have to apply that at the end)
http://www.sewellpartsonline.com/par...id=45432&all=Y

UPDATED: ACCORDING TO SEWELL THIS SERVO ONLY FITS THER 1998-2004 WILL NOT FIT THE 2005
Product #:8710630341, Lexus OEM Damper (For Cooling Unit) Servo Sub-Assy, Quantity:1, Price:$141.31, Item Total:$141.31

quick link (this is WITHOUT the discount price, you'll have to apply that at the end)
http://www.sewellpartsonline.com/par...id=82158&all=Y

i did not replace the air recirculation servo (step 12 and 13, this is the servo that brings in fresh air from outside the car or recirculates old air in the car) as most of us wont be either (for some reason its NOT prone 2 failure like the other 2 are) but i included it incase some1 does need to replace it or just wants to know where it is!


see since i did this ALONG time ago and just not fixing to do it again i forgot some of the small details so i will try and update them soon.....

1st and 2nd step ....should be able to pull this out. it just pops out after you unscrew the bolts....disconnect all lights/plugs on it or at least unhook them



3rd and 4th step....i think this is a 10 mm bolt. unscrew these



5th and 6th step....unscrew bolts holding glove box on there are 3 SCREWS i know if u look at pics you'll think there are 4 but one pic just shows the same screw



on 7th step...you'll see the metal tabs that will hold it in AFTER you've unscrewed it, they just pop or pry out. UNHOOK NOT UNPLUG SRS from glove box (YELLOW WIRE) this is your passenger side airbag and you don't want it blowing off in your face so just unhook it from the glove box and push it back outta the way, unplug glove box light (now might be a good time to upgrade the lighting or the bulb)


8th and 9th step....you'll be unscrewing cd player (again i think its 10mm bolts i cant seem to find mine to verify oops)
ONLY 2 BOLTS ON CD PLAYER, ONE ON EACH SIDE

[sakataj]

10th and 11th step....unhooking cd player. after cd player is unbolted it will slide out (towards you) and be left dangling on the plug

just unplug it


12th and 13th step...air recirculation servo. if u look to the left on the 13th step u can see the other servo (will update which one it is later)
UNLESS YOUR REPLACING THE AIR RECIRCULATION SERVO YOU DONT NEED STEP 12 MOST PEOPLE WONT NEED THIS STEP




14th and 15th and last pic....these are the MODE SERVO, it is what switches your air from ground,face,defrost,etc etc


MODE SERVO- different angle (looking straight at glove box, i turned camera to left facing drivers door and snapped this pic)


MODE SERVO- pulled wiring harness up out of my way



16th step....pull wires from cd player/glove box light and etc OUT of the way


....unscrew and remove MODE SERVO

this is what the pic will look like if your looking straight at the glove box AFTER you have removed the MODE SERVO

[sakataj]

THIS DOES NOT REQUIRE REMOVING THE BLOWER WHEEL OR FILTER BUT I DIDN'T REALIZE THAT UNTIL I HAD ALREADY DONE ALTHOUGH DOING SO WILL GIVE YOU MORE ROOM DOWN THERE SO I DO RECOMMEND YOU GO AHEAD AND DO THAT AND WHILE YOUR IN THERE INSTALL A NEW, CLEAN FILTER
Blower wheel removal....
17th step..i assume everyone knows how to remove a cabin air filter, if not check out this link
http://www.clublexus.com/forums/gs-s...ts-of-pix.html
18th step....mine is already removed in this step



19th step....you'll see a plug in the first pic


20th and 21st step....just unplug it and let it hang for a sec



22nd, 23rd, and 24th step....3 screws hold the blower wheel up




25th and 26th step...u can see screws and plug on here, while the blower wheel is down i would advise to clean it off

[sakataj]

27th, 28th, 29th, and 30th step....pry plastic shroud off white box (actually don't pry, has tabs u can put a flat head under and pull up WITHOUT breaking to release this) need to do this so you have room to get to the servos





31st step...white lid off COOLING SERVO EXPOSED


33rd step....with the first one removed you can now see the COOLING SERVO you'll be replacing. if u follow the aluminum a/c lines down to where they bend, look to the left. that little black box is the COOLING SERVO you'll be replacing


34th step....i had 2 use a small phillipshead screwdriver like one we sell at work to get to the back servo

[sakataj]

35th and 36th step....crawl under dash and unscrew the COOLING SERVO....takes some finagling to get to this one



reinstall and screw the NEW servos in....make sure you put the white arms on the servos INTO the tracks they came out of (grooved white plastic piece you'll see it when you take them out) BEFORE reinstalling glove box,cd player,etc be sure you check these (mine jumped outta the grove the first time) turn on car and run through air flow directions etc..... then reassemble the reverse way! last pics are of ONE of my mechanics helping me....thanks wes

[ElitistK]

in on one.

the servo you are replacing is the one for temperature (mixes hot and cold air) on the passenger thread.

have you tried lubing the bearing to see if the servo motor still works?

[GS300Rich]

Great job sakataj, thanks for the great info and pics

[dee714]

Great write up. I have to ask what was wrong with your car when you replaced these two servo motors. I think my car might be having the same problem. When I turn on my AC the passenger side is blowing warm air. But the driver side was fine. Thanks again.

[dee714]

Cool. I had taken my glove apart but when I was in there. I noticed the white arms to the servo were still moving when I would turn the AC on and off. So I figured the servo motors were fine. I guess not. Big help thanks.

[sakataj]

Originally Posted by dee714

Cool. I had taken my glove apart but when I was in there. I noticed the white arms to the servo were still moving when I would turn the AC on and off. So I figured the servo motors were fine. I guess not. Big help thanks.

haha one of mine moves ok and then some days it takes 10 mins to move

[dee714]

Please keep us updated once you get your new servo's installed. If this really fixes your problem then I'll order mine today.

[sakataj]

ok update.....just got new servos and master key in from sewell lexus...will update post with appropriate names within the hour. OMFG who ever cut my master key must have been blind, its not even close or else someone rekeyed my car's lock...on phone with peter from sewell right now.....but havent had a problem with them yet that hasnt been resolved promptly so we'll see....

ok all updates are done, servos are labeled and i have reordered some pics to make more sense!.....going home to get my camera to snap some pics of this key to send to peter....will snap a pic of new servos and car as it sits right now! have a good new years guys!

[sakataj]

Originally Posted by sakataj

ok update.....just got new servos and master key in from sewell lexus...will update post with appropriate names within the hour. OMFG who ever cut my master key must have been blind, its not even close or else someone rekeyed my car's lock...on phone with peter from sewell right now.....but havent had a problem with them yet that hasnt been resolved promptly so we'll see....

ok will try and post pics this weekend of new servos i got in from sewell....then i will open them up for nigel....also got my new key in from sewell yesterday. seriously some blind guy cut my first key but this next one they sent out worked,ty peter, fine and i programed her this morning with directions from here....gotta love this site

[redjeeper]

Dude, thanks for the great writeup. Where were you last weekend when I was doing this one and cursing.

[nsf0607]

Brian thanks again for the writeup . I will be replacing mine later. I am doing my timing belt water pump replacement this weekend. I also have to replace my VVT-i Actuator, it's leaking I also have some oem hids and L-Tuned shocks/spring to install. So I will be busy over the next few weeks.