System Description

The gauge control module receives information signals about operating conditions from the main switch and from the set switch, cancel switch, and resume switch in the steering wheel.

The control module compares the actual speed of the car to the selected speed, and then opens or closes the throttle as necessary to match the selected speed.

The brake pedal position switch releases the system's control of the throttle at the instant you press on the brake pedal. The switch sends a signal to the ECM/PCM by applying power to the ECM/PCM on one circuit and removing power from the ECM/PCM on another circuit. The control module responds by allowing the throttle to close.

The clutch pedal position switch (M/T) sends a "disengage" signal that allows the throttle to close (cruise deactivated) when the clutch pedal is pressed.

The cruise control system will set and automatically maintain any speed above 25 mph (40 km/h). To set the cruise, make sure the main switch is on and the indicator is illuminated. After reaching the desired speed, press the DECEL/SET switch. The gauge control module, ECM/PCM and the throttle actuator control module work together to operate the TP sensor/throttle actuator (throttle opening for cruise). The vehicle speed and transmission range switch (A/T) information are also transmitted to the ECM/PCM for processing.

The throttle actuator control module sends signals to the TP sensor/throttle actuator, which regulates the throttle position to maintain the selected speed. When you push the SET switch to set the cruise, the CRUISE CONTROL indicator on the gauge control module lights up. You can cancel the cruise control system by pushing the CANCEL switch or by turning the main switch off.

If the system is disengaged temporarily by the brake pedal position switch, transmission range switch (A/T) or clutch pedal position switch (M/T), and the car's speed is still above 25 mph (40 km/h), pressing the RESUME switch will automatically return the vehicle to the previously set speed.

For gradual acceleration without pressing the accelerator pedal, push the RESUME switch and hold it there. To increase the speed in very small amounts, tap the RESUME switch one time for each one mph of increase.

To slow the vehicle down, push the SET switch in and hold it there. To decrease the speed in very small amounts, tap the SET switch one time for each one mph of decrease.

Refer to the CRUISE CONTROL for specific tests or troubleshooting procedures.