Section 170 (Cruise Control Systems): Cable: Operation
WARNING: This page is about a different car, the 2005 Dodge Grand Caravan, 2005 Dodge Caravan, and 2005 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
This cable causes the throttle control linkage to open or close the throttle valve in response to movement of the vacuum servo diaphragm.