Cruise Control Disengaged

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The engine control module (ECM) disengages the cruise control operation based on the signals from the following switches:

The on/off switch
The cancel switch
The clutch start switch
The cruise brake switch
The stop lamp switch

The engine control module (ECM) / powertrain control module (PCM) monitors the cruise control cancel switch. When the cancel switch is activated, the resume/accel switch and the set/coast switch will also be activated simultaneously to signal the ECM/PCM to disengage the cruise control system.

The cruise brake switch, the clutch start switch, and the stop lamp switch are used to disengage the cruise control system. The stop lamp and cruise brake switch are incorporated into an assembly and are mounted to the brake pedal bracket. When the brake pedal is pressed, the normally closed cruise brake switch opens and the normally open stop lamp switch closes. The ECM/PCM detects a low signal voltage on the cruise brake signal circuit and detects a high signal voltage on the stop lamp switch signal circuit. When the clutch pedal is pressed, the normally closed clutch start switch opens and the ECM/PCM detects a low signal voltage on the clutch start switch signal circuit. The cruise control system will disengage when the cruise control on/off switch is switched to OFF. The vehicle speed stored in the memory of the ECM/PCM will be erased when the cruise control on/off switch is turned OFF, or the ignition switch is turned OFF.

The cruise control system will disengage when the ECM/PCM detects that a driver override function has been active for approximately 60 seconds.