Cruise Control Electronic Control Unit (ECU)
WARNING: This page is about a different car, the 1995 Suzuki Esteem. However, it is still accessible from the selected car via links, so may be relevant.
Cruise control ECU delivers an input signal to control overdrive operation in accordance with vehicle speed when cruise control is operating. If vehicle speed drops 2 MPH less than the set speed during cruise control operation while in overdrive, overdrive is released to prevent reduction in vehicle speed. Once vehicle speed is greater than the set speed, overdrive is resumed. If coolant temperature is low, transaxle will not shift into overdrive. Cruise control ECU is located under center console.