when I press and hold the air vent circulation button (to vent, not close), the button and the button next to it (one that CLOSES the air circulation in the car) blinks 3 times..what did I just do?
I have 05 w/o nav.

 

Curious. Subscribed for an explanation.

 

bump.

 

omg still bump!

 

Why did you "hold" down the button anyway? just curious

 

From the 2006 service manual ATC section:

"When FRE switch is ON and is pressed for approximately 1.5 seconds or longer, REC and FRE switch LEDs blink twice. Then, [intake door] automatic control mode is entered. Inlet status is displayed even during automatically controlled."

Following is my wording, not the manual's:
You can also enter intake door automatic control mode (IDACM) if you hold down the REC (recirc) button. IDACM will not work when in Econ mode. IDACM will automatically set the intake door between Fresh, 20% Fresh, and Recirc positions. When you hold down either the FRE or REC button and after the FRE and REC blink twice, only one of them will stay lit to indicate which mode the IDACM is currently using.

 

So what's the purpose of the IDACM?

 

For people who are not in Econ mode and can't decide whether they want fresh or recirculated air I guess.

Manual:
System Operation
The intake door control determines intake door position based on the ambient temperature, the intake air temperature and the in-vehicle temperature. When the DEF switch is pressed, the display and A/C auto amp. sets the intake door at the FRE position. When the OFF switch is pressed...the intake doors are automatically controlled.

There is also a small chart that shows the hotter the display calculated temp, the more the intake door opens for fresh air. I would guess that display calculated temp means outside temp. The manual does a crappy job of explaining this.

 

thats cool... im gonna try this later today... hope i dont brake anything.