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HelloCustomer the IAC is located on the side of the throttle body where the air intake tube connects to the engine as shown below. Let me know if you need more help.
It is a simple repair process. Start by removing the throttle body as shown below. Once you locate the part all you do is unhook the connector and take out the two mounting screws and it comes right out. It is common for this part to just need a good cleaning if it is acting up.