Cruise Control Electronic Control Unit

Cruise control ECU delivers an input signal to control overdrive operation in accordance with vehicle speed when cruise control is operating. When in overdrive with cruise control on, if vehicle speed decreases by 2 MPH less than the set speed, overdrive is released to prevent reduction in vehicle speed. Once vehicle speed is more than the set speed, overdrive function is resumed. If coolant temperature is low, transmission will not shift into overdrive. Cruise control ECU is located below center A/C vent, behind temperature control panel.