CRUISE CONTROL SYSTEM OUTLINE [L8, LF]

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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 | Installation location
--- | --- | ---
ABS HU/CM or DSC HU/CM (CAN communication: Vehicle speed signal) | The vehicle speed signal is sent to the PCM from either the ABS HU/CM or DSC HU/CM. | Engine compartment
Cruise control switch | ON OFF | This is the main switch of the cruise control system. Turning the ON OFF switch to on switches the cruise control system to standby status. | Steering wheel
SET/– | When the vehicle speed exceeds 27 km/h {17 mph} during normal driving (cruise control system is in standby status) and the SET/– switch is released after it is pressed, the PCM stores the vehicle speed at the time the switch is released and the cruise control begins.
Tapping the SET/– switch (tap-down operation) or continuously pressing it during cruise control decreases the set vehicle speed.
RES/+ | If the RES/+ switch is pressed while the cruise control is in standby status (PCM has stored a set vehicle speed) and the vehicle speed exceeds 27 km/h {17 mph} during normal driving, the cruise control system activates to control the vehicle speed to the set vehicle speed.
Tapping the RES/+ switch (tap-up operation) or continuously pressing it during cruise control increases the set vehicle speed.
CANCEL | Pressing the CANCEL switch during cruise control switches the cruise control system to standby status (set vehicle speed is saved).
Brake switch | Depressing the brake pedal during cruise control switches the cruise control system to standby status (set vehicle speed is saved). | Brake pedal
CPP switch (MT) | Depressing the clutch pedal during cruise control switches the cruise control system to standby status (set vehicle speed is saved). | Clutch pedal
Neutral switch (MT) | Shifting to neutral during cruise control switches the cruise control system to standby status (set vehicle speed is saved). | Manual transaxle
PCM | • The cruise control system activates or stops based on the cruise control switch ON OFF signal. • The cruise control duty signal, which is based on each input signal, is sent to the throttle valve actuator. | Engine compartment
Throttle valve actuator | The duty signal sent from the PCM adjusts the throttle valve opening angle. | Throttle body
Cruise main indicator light | This illuminates an amber color while the cruise control system is on standby status. | Instrument cluster
Cruise set indicator light | This illuminates a green color while the cruise control system is in control status.