I haven't seen this topic addressed yet, but I was wondering if anyone has tried this. I have an '08 SR5 with the standard A/C controls, and was wondering if it is possible to upgrade to the automatic climate controls without it being too involved or expensive. Surely it can't be as simple as just swapping out the knob cluster/controls, right?

I think someone tried it on an 07. It didn't work.

__________________

2007 SR5 Crewmax 5.7L 4x4
Mods: nerf bars, Truxedo tonneau, radar detector power, fog lights, black billet grille, rear differential breather, parking sensors, Line-X, power tailgate lock, hood safety latch mod, one off driving lights behind grille, Pioneer NAV w/ OEM camera, Flowmaster 50 SUV dual/dual, blue LED dash lights, Volant CAI
All mod descriptions and pictures © 2007,2008 by Toxarch. They may be copied only for personal use and the mods may be done for non-profit only.

Tox, where did you see that?
I'm wondering (for later use) what the output from the HVAC dash switches is (Assuming resistive voltage drop if they are potentiometers).
Once I get an onboard dash computer, I'm hoping to move the AC controls to the touchscreen.

__________________
5.7L RC Longbox, 4X4 SR5
I-GUIDE (Covers most common general questions)

I'm sure if I am correct in what I saw, it was on TS. Course, I could be mistaken.

I just got done looking at the AC portion of the manual and there's a butt load of extra sensors for the Automatic A/c like a Solar, Room temperature, Ambient Air Temp Sensor to name a few plus both systems use the ECM so I venture a guess there is also some programming involved too.

__________________
Please Click for Sarah's Wish

So it looks like one guy on TS might have it figured out. If not, then he is closer than anyone else so far. I'm going to skip you ahead to his post. You can go back and see the rest if you want. There are some helpful pdfs in there.

Change Manual a/c heater to Auto digital - Tundra Solutions Forum

Seems that you of course need the controls, but you also need a $25 thermistor and a $106 solar sensor. The latter will be useless in an SR5 since it lacks the air baffle that the solar sensor controls. That's as far as he's gotten.