#3730, "RE: IAC" In response to In response to 7 Apr-23-08 04:32 PM by VelocitaPaola
Originally posted by Star Turbo Talon Paul, how is the module configured in the MS? 3 wire in (+ grd FIDLE) & 4 out? If you need one tested let me know. I have resorted back to the same boat as yoyo (gil). Terry
Terry,
You're pretty close... it's four wire in (+12V switched, +12V constant, ground, FIDLE) and four wire out. It doesn't pull any current when the car is off, but it uses the +12V constant to return the stepper to position zero whenever the ignition is killed.
There are also two auxiliary inputs you can configure for use with PS or A/C, or anything else really. Each one automatically opens the stepper a user-configurable amount when the respective input is high: up to 50% each. You can also tie the two together to open the stepper to 100% when just one input is high.
These inputs help the idle react to external events a little quicker than solely relying on closed loop feedback from MS.
I'm hoping to have a few prototypes ready to be shipped by next week. I'll give you a holler, as well as Gil, when they're all set.
