IAC Valve problem

Hi All,

I am really messed with this IAC valve thing. My
car has rotery solenoid valve as IAC. RSC coil for
closing side and RSO for opening side. ECU
provides a PWM to one and inverted to the other.
(i.e. If RSO gets PWM with 75% duty cycle, RSC
gets its inverted PWM which is 25%. This makes a
resultant force to IAC open 50%.)

My data sheet gives the RSC and RSO values
attached herewith. Please see picture 1.You can
see resultant of IAC is at idling with no AC, is
"closed".

But when I check it in my car, the resultant of IAC
at idling with no AC is,  "opened". Please see
picture 2 & 3.

Picture 2 is RSO. Picture 3 is RSC. ( eventhough it
should give inverted to each other please disregard
it since it's an issue with oscilloscope.i.e. time shift
does not shown by oscilloscope.)

1) I checked for vacuume leaks and none found.

2) I also checked these RSC, RSO values at
different throttle adjusting screw setting. No
change.

3) Checked IAC with values in datasheet and it was
OKAY.

4) Also I checked idling speed which is at around
750 rpm.

5) Also I checked rpm when AC switched on which
is increased from 750 to around 900.

Pic 1 - Image 0233 - first picutere is without AC.

Pic 2 - Image 0448 - RSC without AC

Pic 3 - Image 0450 - RSO without AC



What is the issue in my car? Why can't I get the
setup in the datasheet?