CRUISE CONTROL SYSTEM OUTLINE [Z6]

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•  The cruise control system enables driving at a constant speed by setting the vehicle speed with the cruise control switch instead of operating the accelerator pedal.
•  The PCM controls the throttle valve actuator to maintain the vehicle at a constant speed.

Component And Function

Component

Function
ABS HU/CM or DSC HU/CM
(CAN communication: Vehicle speed signal)
The vehicle speed signal is sent to the PCM from the ABS HU/CM or DSC HU/CM.
Cruise control switch
ON
The cruise control system main switch. The cruise control system goes into stand-by with the operation of the switch.
OFF
The cruise control system main switch. The cruise control system is turned off with the operation of the switch.
SET (+)
If the switch is pressed when the vehicle speed exceeds 25 km/h {16 mph} with the system in stand-by, the vehicle speed at the point when the switch is pressed is stored in the PCM and the system initiates the cruise control.
The PCM controls acceleration by the pressing of the switch (tap-up operation) or when the switch is continuously pressed during cruise control.
SET (−)
If the switch is pressed when the vehicle speed exceeds 25 km/h {16 mph} with the system in stand-by, the vehicle speed at the point when the switch is pressed is stored in the PCM and the system initiates the cruise control.
The PCM controls deceleration by the pressing of the switch (tap-down operation) or when the switch is continuously pressed during cruise control.
RESUME
If the switch is pressed when the vehicle speed exceeds 25 km/h {16 mph} with the system in stand-by and the previous pre-set vehicle speed stored in the PCM, the system initiates the cruise control so that the vehicle speed is the pre-set vehicle speed stored in the PCM.
CANCEL
If the switch is pressed during cruise control, the cruise control system goes into stand-by (pre-set vehicle speed is stored).
Brake switch
Depressing the brake pedal during cruise control switches the cruise control system to standby status. (Pre-set vehicle speed is stored.)
CPP switch (MTX)
Depressing the clutch pedal during cruise control switches the cruise control system to standby status. (Pre-set vehicle speed is stored.)
Neutral switch (MTX)
Shifting to neutral during cruise control switches the cruise control system to standby status. (Pre-set vehicle speed is stored.)
PCM
The cruise control system is executed or stopped according to the cruise control switch signals. The throttle valve actuator is operated so that the vehicle speed is the pre-set vehicle speed during cruise control system.
Throttle valve actuator
The duty signal sent from the PCM adjusts the throttle valve opening angle.
Cruise main indicator light (Amber)
This illuminates light while the cruise control system is in stand-by status.
Cruise set indicator light (Green)
This illuminates light while the cruise control system is in control status.