5th Gen Limited HVAC Controls UPGRADE?
- Thread starter TOY2G
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I would guess that the duct work will be the same, but the question is the various sensors and ECU. If the sensor inputs are the same and the ECU is build into the dash unit, you can probably make it work. If there are ECU components elsewhere, it may get pricey and complicated.
That's the connector behind my unit (2010 LE):
Don't mind the CB Coax
.. but the other connectors you would be interested in.
I was hoping I had a pic of the HVAC control unit while it was out of the dash, but I don't....
Hope this helps somewhat....
Okki
That's the connector behind my unit (2010 LE):
Don't mind the CB Coax
.. but the other connectors you would be interested in.
I was hoping I had a pic of the HVAC control unit while it was out of the dash, but I don't....
Hope this helps somewhat....
Okki
eddiebx
New member
Aside from the electronics, the biggest issue is going to be the whole dual climate control air mixing/rerouting hardware from the LE into the TE.
This is the TE diagram:
This is the LE diagram:
Notice the extra servos for the driver and passenger side air mixing? That's going to be a pain in the rear to swap over...IMO, this is probably cost prohibitive
EDIT: Also, it's been a while since I've read the wiring diagrams, but I am pretty sure the way the climate control panel communicates with the rest of the computers is via serial data bus signal, so you really can't even just try to match each button (wire for wire), it's way too complicated nowadays, lol.
This is the TE diagram:
This is the LE diagram:
Notice the extra servos for the driver and passenger side air mixing? That's going to be a pain in the rear to swap over...IMO, this is probably cost prohibitive
EDIT: Also, it's been a while since I've read the wiring diagrams, but I am pretty sure the way the climate control panel communicates with the rest of the computers is via serial data bus signal, so you really can't even just try to match each button (wire for wire), it's way too complicated nowadays, lol.
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I would guess that the duct work will be the same, but the question is the various sensors and ECU. If the sensor inputs are the same and the ECU is build into the dash unit, you can probably make it work. If there are ECU components elsewhere, it may get pricey and complicated.
That's the connector behind my unit (2010 LE):
Don't mind the CB Coax
I was hoping I had a pic of the HVAC control unit while it was out of the dash, but I don't....
Hope this helps somewhat....
Okki
I will pull mine out and compare the plugs, I think it will plug in, but i know from experience the dual climate will not work.
Aside from the electronics, the biggest issue is going to be the whole dual climate control air mixing/rerouting hardware from the LE into the TE.
This is the TE diagram:
View attachment 116141
This is the LE diagram:
View attachment 116143
Notice the extra servos for the driver and passenger side air mixing? That's going to be a pain in the rear to swap over...IMO, this is probably cost prohibitive
EDIT: Also, it's been a while since I've read the wiring diagrams, but I am pretty sure the way the climate control panel communicates with the rest of the computers is via serial data bus signal, so you really can't even just try to match each button (wire for wire), it's way too complicated nowadays, lol.
you are correct, the dual climate will not work, I put the limited HVAC in my 4th gen SR5 and everything worked except the dual climate. There was no benefit to swapping it, I just had an extra and likes the look of the Limited better.
eddiebx
New member
Oh yeah I see what you are saying now, I mis-read it before. That sounds like a pretty cool idea and sounds like it might just work (especially considering that you said it worked on the 4th gen). FWIW, the white plug that okki posted looks exactly the same as on my TE. Hopefully the wiring its pretty much at the same pins too. Good luck, and let us know how it goes if you ever get around to trying it
Antman
Elite Member
I must be the only one that likes the big, old-fashioned knobs. 
imp:
Easier and faster to adjust, and there's no need to look at them while driving once you get used to them. Buttons are less intuitive than dials IMO.
I'm not sure why, exactly, but I hate auto controls- HVAC, Headlights, etc.
imp: Easier and faster to adjust, and there's no need to look at them while driving once you get used to them. Buttons are less intuitive than dials IMO.
I'm not sure why, exactly, but I hate auto controls- HVAC, Headlights, etc.
BlackWorksInc
New member
I must be the only one that likes the big, old-fashioned knobs.
Easier and faster to adjust, and there's no need to look at them while driving once you get used to them. Buttons are less intuitive than dials IMO.
I'm not sure why, exactly, but I hate auto controls- HVAC, Headlights, etc.
Have you seen the new Avalon?
Its got his cute little feature for the fan speed adjustment. You can either push the ends like you do a touch pad to get the setting to move up and down OR you can slide your finger across the pad to manual "fine tune it." I noticed it when doing a PDI on a '14 and was like, "okay... that's so pointlessly entertaining... I LOVE IT!
"I must be the only one that likes the big, old-fashioned knobs.
Easier and faster to adjust, and there's no need to look at them while driving once you get used to them. Buttons are less intuitive than dials IMO.
I'm not sure why, exactly, but I hate auto controls- HVAC, Headlights, etc.
Agree 100%, it's just that part of me that wants it because the other kids have it.
I may try it if I can find a HVAC for a fair price.
STX4Runner
New member
I must be the only one that likes the big, old-fashioned knobs.
Easier and faster to adjust, and there's no need to look at them while driving once you get used to them. Buttons are less intuitive than dials IMO.
I'm not sure why, exactly, but I hate auto controls- HVAC, Headlights, etc.
Totally agree. It's kind of a retro look and feel hat I love, and much safer. I rented a Ford Edge recently, and the HVAC and other various controls were all on the touch screen, with some buried in menus and sub folders etc. Not intuitive or even safe at all. How it is now illegal to be texting and driving and not using hands free talk in some places, but auto makers have carte blance to install what are essentially iPads in vehicles dashbords now days? Sorry. This "get off my lawn" rant is now over.
nglayton
Senior Member
I tried the straight swap with the limited controller into my TE.
It DOES NOT WORK.
It powered up, but no fan control. The fan would NOT turn on no matter how I had the control set. It appeared to let me set temp for each side, but again I couldn't test because none of the fans would spin.
There is a thread running someplace on this already......where several members theorized on what else it would take to make it go....
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FrontRange4Runner
New member
The controls in my Trail seem a little rudimentary, but being able to adjust everything easily with gloves on is a big plus for me. Knowing Toyota, going to the Limited control system will not even be close to plug and play. It's a bummer because I know a lot of people like auto HVAC.
Thank you for saving me some money.
Texas_Ranger
New member
I'd save your money for something else. You'll never get any money back from doing that.
JPV4runnerlimited
New member
Can You explain to me?
Hello friend, did You change the wiring harness? I bought a heater temperature control automatic for My 4runner sr5 year 2012,and the lights turn on, but the fan and the ac doesnt work and I could not see the temperature at the sides, can You help.me?
Hello friend, did You change the wiring harness? I bought a heater temperature control automatic for My 4runner sr5 year 2012,and the lights turn on, but the fan and the ac doesnt work and I could not see the temperature at the sides, can You help.me?
Mine was in regards to the 4th gen, I don't know if any of it translates to the 5th gen.
