Vehicle Speed Signal
The vehicle speed signal for the speed control system comes from the anti-lock control system (ABS) through the control area network (CAN) via the (EMS).
ON Switch
When the ON switch is operated the speed control system is activated and providing the vehicle is travelling at a speed greater than 40km/h (25mile/h), the speed control system will accept the speed inputs. The instrument cluster (IC) will inform the driver that the speed control has been activated.
OFF Switch
When the OFF switch is operated the speed control system is deactivated and the speed setting stored in the ECM memory will be erased. The speed control warning in the IC will be extinguished.
RESUME Switch
When the RESUME switch is operated with the system in STANDBY mode, providing the vehicle speed is above, 40km/h (25mile/h) the vehicle will accelerate until the last set speed is reached.
The RESUME switch will not function if
- The OFF switch has been operated.
- The ignition switch has been turned to the OFF position.
- The vehicle speed is below 40km/h (25mile/h).
- There is a loss of drive between the driveline system and the road wheels.
- The diagnostic system has detected a fault with the speed control system.
CANCEL Switch
When the CANCEL switch is operated with the vehicle speed control system active, the system will enter STANDBY mode.
SET Switch
When the SET switch is operated, providing the vehicle is travelling above 40km/h (25mile/h) the system allows the vehicle speed to be maintained to ± 2km/h (1 mile/h). When the vehicle speed control system is active, operating the SET switch will increase or decrease the vehicle speed respectively until the switch is released. If the SET switch is operated momentarily, the vehicle speed will increase or decrease in 2km/h (1 mile/h) increments.
Hand brake switch (vehicles with 2.0L engine only)
If the hand brake is operated when the speed control system is active, the cruise control module will receive a signal from the hand brake position switch via the (EMS). This will put the system into STANDBY mode and allow the vehicle to return to a speed demanded by the throttle pedal position.
Brake Pedal Position Switches
Vehicles with 2.0L engine
If the brake pedal is operated when the speed control system is active, the cruise control module will receive a signal from the brake pedal position primary and secondary switches. This will put the system into STANDBY mode and allow the vehicle to return to a speed demanded by the throttle pedal position.
Vehicles with 2.5L, 3.0L or diesel engine
If the brake pedal is operated when the speed control system is active, the ECM will receive a signal from the brake pedal position primary and secondary switches. This will put the system into STANDBY mode and allow the vehicle to return to a speed demanded by the throttle pedal position.
The brake pedal position primary switch is also used to operate the stop lamps.
Clutch Pedal Position Switch (vehicles fitted with manual transmission)
Vehicles with 2.0L or diesel engine
If the clutch pedal is operated when the speed control system is active, the cruise control module will receive a signal from the clutch pedal position (CPP) switch. This will put the system into STANDBY mode and allow the vehicle to return to a speed demanded by the throttle pedal.
Vehicles with 2.5L, 3.0L or diesel engine
If the clutch pedal is operated when the speed control system is active, the ECM will receive a signal from the clutch pedal position (CPP) switch. This will put the system into STANDBY mode and allow the vehicle to return to a speed demanded by the throttle pedal.
Throttle Body
The throttle body moves the throttle plate to a position demanded by the throttle pedal or the speed control system.
Cruise control module (vehicles with 2.0L engine only)
The cruise control module receives information from the sensors and the ECM, which enables it to hold the throttle lever in a set position, this is achieved via a cable which is attached to the throttle lever. The cruise control actuator cable is permanently attached to the cruise control module and cannot be replaced or adjusted.