User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 01-27-2019, 07:28 PM #1
4RunnerFJ 4RunnerFJ is offline
Junior Member
 
Join Date: Feb 2016
Location: Gulf Breeze, FL
Posts: 9
4RunnerFJ is on a distinguished road
4RunnerFJ 4RunnerFJ is offline
Junior Member
 
Join Date: Feb 2016
Location: Gulf Breeze, FL
Posts: 9
4RunnerFJ is on a distinguished road
Cabin Temperature Control Question

UPDATE 2/19/19: I installed a new cabin temperature sensor and there was no change. My next option is to take it to the stealership and ask them to take a look at it. My gut is telling me it's in the controller but I'm holding out for a loose wire somewhere. Fortunately, it hasn't been that cold around here since my initial post and it continues to look like nice weather for the time being so there's no need for an in between setting of Lo or blazing hot.

My 2004 4R is an SR5 V6 with a single zone climate control. I recently swapped out all three air servo motors (blend door, air-mix, and air recirc). They failed one at a time over the course of about 6 months. It was frustrating, but I digress.

The last one to be replaced was the air mix servo. I have full heat now but the air temperature "jumps" from Lo to hot when adjusting the temperature just a few degrees. Watching the servo, the air-mix door travels a short distance each degree from Lo until it gets to 70 or 71 and then it seems to travel all the way as if I had put the temperature on HI. And the temperature is blazing hot, too. Running the temperature all the way to Hi, the door does not move any further and the temperature remains blazing hot. On the way back down, the door doesn't travel until I reach 70 or 71. At that point, it behaves the same way as it did when increasing the temperature, traveling a short distance with each decrease of 1 degree.

I don't see anything obvious I could repair to correct this issue. Could this be something with the computer since I had to disconnect several connections, like maybe it "forgot" how to respond? Anybody else experience this before?

Hopefully I explained this well for others to understand. Thanks for any help!

Last edited by 4RunnerFJ; 02-19-2019 at 09:00 PM. Reason: Update to progress
4RunnerFJ is offline   Reply With QuoteReply With Quote
Old 01-27-2019, 07:58 PM #2
4RunnerMexico 4RunnerMexico is offline
Member
 
Join Date: Aug 2017
Location: SC
Posts: 111
4RunnerMexico is on a distinguished road
4RunnerMexico 4RunnerMexico is offline
Member
 
Join Date: Aug 2017
Location: SC
Posts: 111
4RunnerMexico is on a distinguished road
I have the same issue..

Following for possible solution

Edit: Ive thought either the control panel might be bad or it might have something to do with the cabin temp sensor. I know the cabin temp sensor is located in the little vent thing below the ignition. Just haven't bothered to do any fixing....

Last edited by 4RunnerMexico; 01-27-2019 at 08:04 PM.
4RunnerMexico is offline   Reply With QuoteReply With Quote
Old 01-27-2019, 09:28 PM #3
Syr4RinNC's Avatar
Syr4RinNC Syr4RinNC is offline
Member
 
Join Date: Jan 2019
Location: Central NY
Posts: 794
Syr4RinNC is a jewel in the rough Syr4RinNC is a jewel in the rough Syr4RinNC is a jewel in the rough Syr4RinNC is a jewel in the rough
Syr4RinNC Syr4RinNC is offline
Member
Syr4RinNC's Avatar
 
Join Date: Jan 2019
Location: Central NY
Posts: 794
Syr4RinNC is a jewel in the rough Syr4RinNC is a jewel in the rough Syr4RinNC is a jewel in the rough Syr4RinNC is a jewel in the rough
Ive had the same issue on two of my 4runners - 03 and 08. could never figure it out. Went from low temp to 65 and it would get really hot really quick
Syr4RinNC is offline   Reply With QuoteReply With Quote
Old 01-27-2019, 09:30 PM #4
4RunnerFJ 4RunnerFJ is offline
Junior Member
 
Join Date: Feb 2016
Location: Gulf Breeze, FL
Posts: 9
4RunnerFJ is on a distinguished road
4RunnerFJ 4RunnerFJ is offline
Junior Member
 
Join Date: Feb 2016
Location: Gulf Breeze, FL
Posts: 9
4RunnerFJ is on a distinguished road
Quote:
Originally Posted by 4RunnerMexico View Post
I have the same issue..

Following for possible solution

Edit: Ive thought either the control panel might be bad or it might have something to do with the cabin temp sensor. I know the cabin temp sensor is located in the little vent thing below the ignition. Just haven't bothered to do any fixing....
I'm going to check my cabin temp sensor sometime over the next week, I hope. I *thought* I had looked at it a while back when I was in there for something else and everything was connected. We'll see. I will update after I look.

I refined my search after my post and found others had the same issue I have and the cabin temp sensor was the culprit.
4RunnerFJ is offline   Reply With QuoteReply With Quote
Old 02-19-2019, 08:59 PM #5
4RunnerFJ 4RunnerFJ is offline
Junior Member
 
Join Date: Feb 2016
Location: Gulf Breeze, FL
Posts: 9
4RunnerFJ is on a distinguished road
4RunnerFJ 4RunnerFJ is offline
Junior Member
 
Join Date: Feb 2016
Location: Gulf Breeze, FL
Posts: 9
4RunnerFJ is on a distinguished road
UPDATE: I installed a new cabin temperature sensor and there was no change. My next option is to take it to the stealership and ask them to take a look at it. My gut is telling me it's in the controller but I'm holding out for a loose wire somewhere. Fortunately, it hasn't been that cold around here since my initial post and it continues to look like nice weather for the time being so there's no need for an in between setting of Lo or blazing hot.
4RunnerFJ is offline   Reply With QuoteReply With Quote
Old 02-20-2019, 01:45 AM #6
Montego Murph's Avatar
Montego Murph Montego Murph is offline
Member
 
Join Date: Mar 2013
Location: Central IL
Posts: 449
Montego Murph will become famous soon enough Montego Murph will become famous soon enough
Montego Murph Montego Murph is offline
Member
Montego Murph's Avatar
 
Join Date: Mar 2013
Location: Central IL
Posts: 449
Montego Murph will become famous soon enough Montego Murph will become famous soon enough
This is going to sound really simplistic and probably not the answer for those who have replaced/tested their sensor...

The sensor lives behind a small vent (the size of a dime) just forward of the driver's right knee. Every so often I rub my finger across that vent and wipe off a ball of dust and suddenly my climate control is much more accurate.

There is the slightest amount of suction coming through there to read the temperature, and it's enough to make a dustbunny which blocks the airflow to the sensor and gives a false reading!

Not enough for anything extreme, but enough to make you say "is it REALLY 73 in here?"
Montego Murph is offline   Reply With QuoteReply With Quote
Reply

Tags
air , door , hot , servo , temperature

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
cabin temperature adjust won't work . kacper 4th Gen T4Rs 19 09-05-2021 11:16 AM
Temperature control clicks eanema 3rd gen T4Rs 9 02-06-2019 06:37 PM
Temperature control switch issue Rwm514 3rd gen T4Rs 2 01-08-2019 04:16 PM
Climate control temperature desch 5th gen T4Rs 6 09-06-2013 12:30 PM
Temperature Control Problem pinchshopper 3rd gen T4Rs 0 07-31-2011 07:10 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 06:49 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Copyright © 2020