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2003 Matrix XRS IAC valve testing

ripperripper Posts: 2
edited May 16 in Toyota
Can anyone help me to test the IAC valve for my '03 Matrix XRS? I am looking at replacing this part and there are a range of different prices and availability. The electrical connector has three pins and I have been told that the resistance can be tested between pin 1 and pin 2 or pin 2 and pin 3 but I don't know where to get the correct specs for the ohms. I have heard there is a way to actuate the valve with the part off the engine by applying 12v to pin 2 and grounding pin 1, but I don't know if this is true. Any insight into this is very helpful. I don't want to install a defective part and then be stuck. Thanks.
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