View Full Version : Changing Climate control unit...need help

08-25-2006, 04:18 PM
I'm planning to change this unit
to this one
taking the dash was easy but then i ran into a little problem.
as i was pulling out the climate control something was holding it back
this little blue cable was holding it back
okay guys how do i remove the climate control unit? any suggestion would
be great. thanks!


being impatient as i was for a response i went to the car and ripped everything out :hehe:
when i yanked it out,....this thang popped out with it
it's the control for the hot-cold knob...will i still need it?
and here's the blue cable i was talking about earliar,..it was
attached also to the hot-cold knob,...by any chance do you
guys know what it's for?
and then i ran into another problem,..the plugs didn't plug in into the
new auto climate control unit im putting in except for the rear defroster plug
so where do i go from here guys? help a brotha out please!!!!

08-25-2006, 09:07 PM
I thought the auto climate control was controlled electrically and the manual one with a cable. So i thought that's why they couldn't be switched around, i could be wrong though.

08-25-2006, 09:07 PM
yea that blue cable, u pop the hood and on the firewall u unbolt it.

08-26-2006, 05:30 PM

This is why you ASK before undertaking projects like this if you don't know what you are doing.
The HVAC controls are different for the pre and post revision.
As well as the auto and regular ac.

There are I believe 6 different versions for the 5th gen.
At least some have different wiring, and as you found out, connectors.

Basically to use the second controls, you need to change out the ENTIRE wiring harness, as well as the ac ecu I believe.....
I dont' remember all of it off the top of my head, and I'm at work....

I just hope you didn't break anything.....

08-26-2006, 05:58 PM
yeah sorta broke the old unit while pulling it apart..i pretty much screwed myself over,..any suggestions for my problem?:wiggle: i would really like to finish this project myself but does it look like i should take the car to toyota dealership and get it finished there?

08-27-2006, 03:45 AM
Time to go to the junk yard and find one like your original and put it back on.

08-27-2006, 05:58 AM
.....i would really like to finish this project myself but does it look like i should take the car to toyota dealership and get it finished there?
Only if you want to get really screwed. It'll be pricey....$$
I agree with aballz: get yourself to the junkyard and replace eveything you f*cked up. Climate controls and wiring are touchy things - I guess you learned a hard lesson. :ugh:

08-27-2006, 08:28 AM
something i thought would be simple turns out to be more complicated than i thought... I sure did learned my lesson and it sucks:slap:

09-06-2006, 11:12 PM
The easiest fix is to go back to your original unit. Iíve got one you can have for $20 shipped (assuming continental US). PM me if interested.
For the other end of the cables you tore apart:
One cable is directly below the controller to the right of the gas pedal. It controls flaps on air box for heat or ac. The other cable goes through the firewall and connects to the heater water bypass valve. Both cables slide over small pegs and cable housing is held by spring steel clip.

09-07-2006, 04:32 AM
I've posted how to with pictures here: http://www.celicatech.com/forums/showthread.php?p=221210#post221210